BIOL Biolase Inc

As filed with the Securities and Exchange Commission on February 9, 2024

Registration No. 333-276596

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

AMENDMENT

NO. 3

TO

FORM S-1

REGISTRATION STATEMENT

UNDER THE

SECURITIES ACT OF 1933

BIOLASE, INC.

(Exact name of registrant as specified in its charter)

27042 Towne Centre Drive, Suite 270

Lake Forest, California 92610

(949) 361-1200

(Address, including zip code and telephone number, including area code, of registrant’s principal executive offices)

John R. Beaver

President and Chief Executive Officer

BIOLASE, Inc.

27042 Towne Centre Drive, Suite 270

Lake Forest, California 92610

(949) 361-1200

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:

Approximate date of commencement of proposed sale to the public: As soon as practicable after this registration statement is declared effective.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, check the following box. ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

The registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Securities and Exchange Commission acting pursuant to said Section 8(a), may determine.

The information in this prospectus is not complete and may be changed. We may not sell these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to sell these securities, and we are not soliciting an offer to buy these securities, in any jurisdiction where the offer or sale is not permitted.

Up to 10,714,285 Units

Each Consisting of One Share of Common Stock, One Class A Warrant to Purchase One Share of Common Stock and One Class B Warrant to Purchase One Share of Common Stock

Up to 10,714,285 Pre-Funded Units

Each Consisting of One Pre-Funded Warrant to Purchase One Share of Common Stock, One Class A Warrant to Purchase One Share of Common Stock and One Class B Warrant to Purchase One Share of Common Stock

Up to 10,714,285 Shares of Common Stock Underlying the Class A Warrants

Up to 10,714,285 Shares of Common Stock Underlying the Class B Warrants

Up to 10,714,285 Shares of Common Stock Underlying the Pre-Funded Warrants

BIOLASE, Inc.

We are offering on a best efforts basis up to 10,714,285 units (“Units”), each unit consisting of one share of our common stock, par value $0.001 per share (the “common stock”), one Class A warrant to purchase one share of our common stock (each, a “Class A Warrant”) and one Class B warrant to purchase one share of our common stock (each, a “Class B Warrant”, and together with the Class A Warrants, the “Warrants”). The assumed public offering price for each Unit is $0.70, which represents the closing price of our common stock on the Nasdaq Capital Market on February 5, 2024. The Units have no stand-alone rights and will not be certificated or issued as stand-alone securities. The common stock and Warrants are immediately separable and will be issued separately in this offering.

The Class A Warrants offered hereby will be issued at the closing of this offering and will be exercisable immediately upon issuance. The Class B Warrants offered hereby will be issued at the closing of this offering and will be exercisable on or after the date that our stockholders vote to approve that the Class B Warrants may be exercisable for shares of our common stock, as may be required by the applicable rules and regulations of The Nasdaq Stock Market LLC (the “Stockholder Approval”).

We are also offering to those purchasers, if any, whose purchase of Units in this offering would otherwise result in the purchaser, together with its affiliates and related parties, beneficially owning more than 4.99% of our outstanding common stock immediately following the consummation of this offering, the opportunity to purchase, if they so choose pre-funded units (“Pre-Funded Units”) in lieu of the Units that would otherwise result in ownership in excess of 4.99% (or, at the election of the purchaser, 9.99%) of our outstanding common stock, with each Pre-Funded Unit consisting of one pre-funded warrant to purchase one share of our common stock (each, a “Pre-Funded Warrant”), one Class A warrant to purchase one share of our common stock and one Class B warrant to purchase one share of our common stock. The purchase price of each Pre-Funded Unit will equal the price per Unit, minus $0.001, and the exercise price of each Pre-Funded Warrant included in the Pre-Funded Unit will be $0.001 per share of our common stock. The Pre-Funded Units have no stand-alone rights and will not be certificated or issued as stand-alone securities. The Pre-Funded Warrants and Warrants are immediately separable and will be issued separately in this offering. There can be no assurance that we will sell any of the Pre-Funded Units being offered. The Pre-Funded Warrants offered hereby will be immediately exercisable and may be exercised at any time until exercised in full.

For each Pre-Funded Unit we sell, the number of Units we are offering will be decreased on a one-for-one basis. Because we will issue the Warrants as part of each Unit or Pre-Funded Unit, the number of Warrants sold in this offering will not change as a result of a change in the mix of the Units and Pre-Funded Units sold.

This offering also includes the common stock issuable from time to time upon exercise of the Warrants and Pre-Funded Warrants.

We refer to the shares of our common stock, the Warrants, the Pre-Funded Warrants and the shares of our common stock issued or issuable upon exercise of the Warrants and Pre-Funded Warrants, collectively, as the securities.

Because this is a best efforts offering, the placement agents do not have an obligation to purchase any securities, and, as a result, there is a possibility that we may not be able to sell the securities. The securities will be offered at a fixed price and are expected to be issued in a single closing. The offering will terminate upon the earlier of: (i) February 23, 2024; and (ii) the closing of the offering. The offering will settle delivery versus payment (“DVP”)/receipt versus payment (“RVP”). Accordingly, we and the placement agents have not made any arrangements to place investor funds in an escrow account or trust account since the placement agents will not receive investor funds in connection with the sale of the securities offered hereunder.

We have engaged Lake Street Capital Markets, LLC and Maxim Group LLC (the “placement agents”) to act as our placement agents in connection with this offering. The placement agents have agreed to use their reasonable best efforts to arrange for the sale of the securities offered by this prospectus. The placement agents are not purchasing or selling any of the securities we are offering and the placement agents are not required to arrange the purchase or sale of any specific number or dollar amount of securities. We have agreed to pay to the placement agents the placement agent fees set forth in the table below, which assumes that we sell all of the securities offered by this prospectus. There is no arrangement for funds to be received in escrow, trust or similar arrangement. We will bear all costs associated with the offering. See “Plan of Distribution” on page 122 of this prospectus for more information regarding these arrangements.

Our common stock is traded on the Nasdaq Capital Market under the symbol “BIOL.” On February 5, 2024, the last reported sale price for our common stock on the Nasdaq Capital Market was $0.70 per share. There is no established trading market for the Class A Warrants, the Class B Warrants or the Pre-Funded Warrants and we do not expect a market to develop for these warrants. In addition, we do not intend to apply to list the Class A Warrants, the Class B Warrants or the Pre-Funded Warrants on the Nasdaq Capital Market or any other national securities exchange or any other nationally recognized trading system.

The actual public offering price per Unit and the actual public offering price per Pre-Funded Unit will be determined between us, the placement agents and investors in this offering based on market conditions at the time of pricing and may be at a discount to the current market price of our common stock. Therefore, the recent market price used throughout this prospectus may not be indicative of the final offering price.

Investing in our securities involves substantial risks. Please read carefully the section entitled “Risk Factors” beginning on page 14 of this prospectus, as well as the other information included or incorporated by reference in this prospectus, before buying any of our securities.

Delivery of the securities is expected to be made on or about    , 2024.

Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or passed upon the adequacy or accuracy of this prospectus. Any representation to the contrary is a criminal offense.

Joint Bookrunners

The date of this prospectus is    , 2024

TABLE OF CONTENTS

The registration statement containing this prospectus, including the exhibits to the registration statement, provides additional information about us and the common stock offered under this prospectus. The registration statement, including the exhibits, can be read on our website and the website of the Securities and Exchange Commission. See “Where You Can Find More Information.”

Information contained in, and that can be accessed through our web site, www.biolase.com, shall not be deemed to be part of this prospectus or incorporated herein by reference and should not be relied upon by any prospective investors for the purposes of determining whether to purchase the securities offered hereunder.

Unless the context otherwise requires, the terms “we,” “us,” “our,” “the Company,” “BIOLASE” and “our business” refer to BIOLASE, Inc. together with its consolidated subsidiaries and “this offering” refers to the offering contemplated in this prospectus.

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ABOUT THIS PROSPECTUS

You should rely only on the information that we have provided, any related free writing prospectus that we may authorize to be provided to you and the other information to which we refer you. We have not authorized anyone to provide you with different or additional information. We and the placement agents have not authorized anyone to give any information or to represent anything not contained in this prospectus or any related free writing prospectus that we may authorize to be provided to you. If anyone provides you with different or additional information, you should not rely on it. You should assume that the information in this prospectus or any related free writing prospectus is accurate only as of the date on the cover of the document regardless of the time of delivery of this prospectus or any related free writing prospectus, or any sale of a security. Our business, financial condition, results of operations and prospects may have changed since those dates.

Persons who come into possession of this prospectus and any applicable free writing prospectus in jurisdictions outside the United States are required to inform themselves about and to observe any restrictions as to this offering and the distribution of this prospectus and any such free writing prospectus applicable to that jurisdiction. See “Plan of Distribution” for additional information on these restrictions.

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INDUSTRY AND MARKET DATA

Market data and certain industry data and forecasts used throughout this prospectus were obtained from sources we believe to be reliable, including market research databases, publicly available information, reports of governmental agencies and industry publications and surveys. We have relied on certain data from third-party sources, including internal surveys, industry forecasts and market research, which we believe to be reliable based on our management’s knowledge of the industry. Forecasts are particularly likely to be inaccurate, especially over long periods of time. In addition, we do not necessarily know what assumptions regarding general economic growth were used in preparing the third-party forecasts we cite. Statements as to our market position are based on the most currently available data. While we are not aware of any misstatements regarding the industry data presented in this prospectus, our estimates involve risks and uncertainties and are subject to change based on various factors, including those discussed under the heading “Risk Factors” in this prospectus.

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RISK FACTORS

Investing in our securities involves a high degree of risk. You should carefully consider the risks described below and all of the information contained in this prospectus, including the risk factors described below, and all other information contained elsewhere in this prospectus before deciding whether to purchase the securities offered hereby. Our business, financial condition, results of operations and prospects could be materially and adversely affected by these risks.

Risks Related to This Offering

Our management will have broad discretion over the use of the net proceeds from this offering, you may not agree with how we use the proceeds and the proceeds may not be invested successfully.

Our management will have broad discretion as to the use of the net proceeds from this offering and could use them for purposes other than those contemplated at the time of commencement of this offering. Accordingly, you will be relying on the judgment of our management regarding the use of these net proceeds, and you will not have the opportunity, as part of your investment decision, to assess whether the proceeds are being used appropriately. It is possible that, pending their use, we may invest the net proceeds in a way that does not yield a favorable, or any, return for us. The failure of our management to use such funds effectively could have a material adverse effect on our business, financial condition, operating results and cash flows.

You may experience immediate and substantial dilution in the net tangible book value per share of the common stock included as part of the Units or that may be issued upon the exercise of any Pre-Funded Warrants included as part of the Pre-Funded Units.

If the price per share of our common stock being offered as part of the Units or that may be issued upon the exercise of any Pre-Funded Warrants included as part of the Pre-Funded Units is higher than the net tangible book value per share of our common stock, you will suffer immediate and substantial dilution in the net tangible book value of the common stock you purchase in this offering or the common stock underlying the Pre-Funded Warrants you purchase in this offering. Assuming an assumed offering price of $0.70 per Unit in this offering, which was the closing price of our common stock on the Nasdaq on February 5, 2024, investors would not suffer immediate and substantial dilution in the net tangible book value of the common stock purchased in this offering; however, this is based on an assumed offering price and an assumed number of Units being offered. Actual results, including the gross proceeds and the price per Unit may differ from these assumed amounts. See the section entitled “Dilution” below for a more detailed discussion of the potential dilution you may incur if you invest in this offering, including due to a change in the price of the offered Units and the number of Units being offered.

You may experience future dilution as a result of future equity offerings and other issuances of our common stock or other securities. In addition, this offering and future equity offerings and other issuances of our common stock or other securities may adversely affect our common stock price.

In order to raise additional capital, we may in the future offer additional shares of our common stock or other securities convertible into or exchangeable for our common stock at prices that may not be the same as the price per Unit in this offering. We may not be able to sell shares or other securities in any other offering at a price per share that is equal to or greater than the price per Unit paid by the investors in this offering, and investors purchasing shares or other securities in the future could have rights superior to existing stockholders. The price per share at which we sell additional shares of our common stock or securities convertible into common stock in future transactions may be higher or lower than the price per Unit in this offering. You will incur dilution upon exercise of any outstanding stock options, warrants or upon the issuance of shares of common stock under our stock incentive programs. In addition, the sale of securities in this offering, the conversion of the Series H Convertible Preferred Stock and Series J Convertible Preferred Stock into common stock and any future sales of a substantial number of shares of our common stock in the public market, or the perception that such sales may occur, could adversely affect the price of our common stock. As of September 30, 2023, approximately 62,000 shares of common stock were reserved for issuance under our equity incentive plans, approximately

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300 of which were subject to options outstanding, 58,000 of which were subject to restricted stock units outstanding or expected to be issued as of that date, 200 stock appreciation rights outstanding and 3,500 phantom restricted stock units outstanding or expected to be issued as of that date. In addition, as of September 30, 2023, approximately 1.3 million shares of our common stock were subject to warrants at a weighted-average exercise price of $36.82 per share. In June 2022, 726,660 pre-funded warrants and 1,405,405 warrants were issued, which were convertible to approximately 7,266 and 14,054 shares of our common stock, respectively; in January 2023, an additional 11,403,571 pre-funded warrants were issued, which were convertible to approximately 114,035 shares of our common stock; in May 2023, 175,000 shares of Series H Convertible Preferred Stock and 175,000 warrants (the “Series H Warrants”) to purchase one-half of one (0.50) share of Series H Convertible Preferred Stock were issued, and in September 2023, 75,000 shares of Series J Convertible Preferred Stock and 75,000 Series J Warrants to purchase one-half of one (0.50) share of Series J Convertible Preferred Stock were issued. To the extent that outstanding warrants or options are exercised or the convertible preferred stock is converted, our existing stockholders could experience dilution. We rely heavily on equity awards to motivate current employees and to attract new employees. The grant of future equity awards by us to our employees and other service providers could further dilute our stockholders’ interests in the Company.

We cannot predict the effect, if any, that market sales of those shares of common stock or the availability of those shares for sale will have on the market price of our common stock.

This is a best efforts offering, no minimum amount of securities is required to be sold, and we may not raise the amount of capital we believe is required for our business plans.

The placement agents have agreed to use their reasonable best efforts to solicit offers to purchase the securities in this offering. The placement agents have no obligation to buy any of the securities from us or to arrange for the purchase or sale of any specific number or dollar amount of the securities. There is no required minimum number of securities that must be sold as a condition to completion of this offering. Because there is no minimum offering amount required as a condition to the closing of this offering, the actual offering amount, placement agent fees and proceeds to us are not presently determinable and may be substantially less than the maximum amounts set forth herein. We may sell fewer than all of the securities offered hereby, which may significantly reduce the amount of proceeds received by us, and investors in this offering will not receive a refund in the event that we do not sell an amount of securities sufficient to support our continued operations. Thus, we may not raise the amount of capital we believe is required for our operations and may need to raise additional funds. Such additional fundraises may not be available or available on terms acceptable to us.

We need to raise sufficient capital in this offering to support our operations. If we are unable to raise sufficient capital in this offering, our financial position will be materially adversely impacted.

We have historically experienced losses from operations. For the three and nine months ended September 30, 2023, we had a net loss of $4.6 million and $15.3 million, respectively. From our inception through September 30, 2023, we had an accumulated deficit of $311.5 million. We believe that current cash on hand, prior to the receipt of any proceeds from this offering, is not sufficient to fund operations beyond twelve months. If we were to receive net proceeds of $6.5 million from this offering, we believe that the net proceeds from this offering, together with our existing cash and cash equivalents, will meet our capital needs through the next twelve months and into the first quarter ended March 31, 2025. If we receive net proceeds of $5.5 million in this offering, we believe that the net proceeds from this offering, together with our existing cash and cash equivalents will meet our capital needs through the fourth quarter ended December 31, 2024. If we were to receive net proceeds of $4.0 million from this offering, we believe that the net proceeds from this offering, together with our existing cash and cash equivalents, will meet our capital needs through the third quarter ended September 30, 2024. In addition, the report of our independent registered public accounting firm on our financial statements for the years ended December 31, 2022 contains explanatory language that substantial doubt exists about our ability to continue as a going concern. In order for us to continue operations beyond the next 12 months and be able to discharge our liabilities and commitments in the normal course of business, we must increase sales of its products, control or potentially reduce expenses and establish profitable operations in order to generate

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cash from operations or obtain additional funds when needed. We have no additional committed sources of capital and may find it difficult to raise money on terms favorable to us or at all. The failure to obtain sufficient capital to support our operations could have a material adverse effect on our business, financial condition and results of operations.

Additional financing opportunities may not be available to us, or if available, may not be on favorable terms. The availability of financing opportunities will depend, in part, on market conditions, and the outlook for our business. Any future issuance of equity securities or securities convertible into equity securities could result in substantial dilution to our stockholders, and the securities issued in such a financing could have rights, preferences or privileges senior to those of our common stock. In addition, if we raise additional funds through debt financing, we could be subject to debt covenants that place limitations on our operations. We could not be able to raise additional capital on reasonable terms, or at all, or we could use capital more rapidly than anticipated. If we cannot raise the required capital when needed, we may not be able to satisfy the demands of existing and prospective customers, we could lose revenue and market share and we may have to curtail our capital expenditures.

If we are unable to achieve and sustain an adequate level of profitability or obtain sufficient capital in the future, we could have to curtail our capital expenditures. Any curtailment of our capital expenditures could result in a reduction in net revenue, reduced quality of our products, increased manufacturing costs for our products, harm to our reputation, or reduced manufacturing efficiencies and could have a material adverse effect on our business, financial condition and results of operations.

Purchasers who purchase our securities in this offering pursuant to a securities purchase agreement may have rights not available to purchasers that purchase without the benefit of a securities purchase agreement.

In addition to rights and remedies available to all purchasers in this offering under federal securities and state law, the purchasers that enter into a securities purchase agreement will also be able to bring claims of breach of contract against us. The ability to pursue a claim for breach of contract provides those investors with the means to enforce the covenants uniquely available to them under the securities purchase agreement.

There is no public market for the Warrants or Pre-Funded Warrants.

There is no established public trading market for the Warrants or Pre-Funded Warrants offered hereby, and we do not expect a market to develop. In addition, we do not intend to apply to list the Warrants or Pre-Funded Warrants on any national securities exchange or other nationally recognized trading system, including Nasdaq. Without an active market, the liquidity of those securities will be limited.

The Warrants in this offering are speculative in nature.

Following this offering, the market value of the Warrants, if any, is uncertain and there can be no assurance that the market value of the Warrants will equal or exceed their imputed public offering price. In the event that our common stock price does not exceed the exercise price of the Warrants during the period when such Warrants are exercisable, such Warrants may not have any value. Furthermore, if Stockholder Approval is not obtained, the Class B Warrants will not be exercisable. Furthermore, each Class A Warrant will expire five (5) years from its date of issuance and each Class B Warrant will expire five (5) years after the date we obtain Stockholder Approval.

You may be unable to exercise the Class B Warrants, they may have no value if Stockholder Approval is not obtained and the Class B Warrants contain certain provisions that could reduce the exercise price and cause dilution to existing stockholders.

The Class B Warrants will be exercisable on or after the date that Stockholder Approval is obtained, and the Class B Warrants will expire five (5) years after the date we obtain Stockholder Approval. If we are unable to obtain such Stockholder Approval, the Class B Warrants may have no value and may become or expire worthless. In no event may the Class B Warrants be net cash settled, until they initially become exercisable. We

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may request that certain investors in this offering whose investment exceeds a certain amount to enter into a voting agreement whereby each such investor will agree to vote all shares of our common stock that they beneficially own on the closing date of this offering with respect to any proposals presented to our stockholders at our next meeting of stockholders. However, existing holders of our common stock may have an incentive to vote against the proposal to enable the Class B Warrants to be exercisable in order to prevent dilution in their interests by the shares of our common stock issuable upon exercise of the Class B Warrants. There is no guarantee that any investors in this offering will agree to enter into any voting agreement and there is no guarantee that the Stockholder Approval will ever be obtained. In addition, the exercise price and the number of shares of our common stock issuable upon exercise of the Class B Warrants are subject to adjustment upon certain events, such as stock splits, combinations, dividends, distributions, reclassifications, mergers or other corporate change and dilutive issuances, which could result in dilution to existing stockholders.

Holders of the Warrants and Pre-Funded Warrants will not have rights of holders of our shares of common stock until such Warrants and Pre-Funded Warrants are exercised.

The Warrants and Pre-Funded Warrants in this offering do not confer any rights of share ownership on their holders, but rather merely represent the right to acquire shares of our common stock at a fixed price. Until holders of Warrants and Pre-Funded Warrants acquire shares of our common stock upon exercise of the Warrants and Pre-Funded Warrants, as applicable, holders of Warrants and Pre-Funded Warrants will have no rights with respect to our shares of common stock underlying such Warrants and Pre-Funded Warrants.

Risks Related to Our Financial Position

Due to our accumulated deficit, recurring and negative cash flow from operations for the year ended December 31, 2022 and the quarter ended September 30, 2023, there is substantial doubt about our ability to continue as a going concern.

We incurred losses from operations and used cash in operating activities for the three and nine months ended September 30, 2023 and for the years ended December 31, 2022 and 2021. Our recurring losses, level of cash used in operations, and potential need for additional capital, along with uncertainties surrounding the Company’s ability to raise additional capital, raise substantial doubt about the Company’s ability to continue as a going concern. Our audited consolidated financial statements for the year ended December 31, 2022 were prepared on a going concern basis in accordance with generally accepted accounting principles in the United States. The going concern basis assumes that we will continue in operation for the next 12 months and will be able to realize our assets and discharge our liabilities and commitments in the normal course of business. Thus, our consolidated financial statements do not include any adjustments that might be necessary if we are unable to continue as a going concern. Our recurring losses, negative cash flow, need for additional capital, and the uncertainties surrounding our ability to raise such capital raise substantial doubt about our ability to continue as a going concern. For us to continue operations beyond the next 12 months and be able to discharge our liabilities and commitments in the normal course of business, we must sell our products directly to end-users and through distributors, establish profitable operations through increased sales, decrease expenses, generate cash from operations or raise additional funds when needed. Our goal is to improve our financial condition and ultimately improve our financial results by increasing revenues through expanding awareness of the benefits of our dental lasers among dental specialists and general practitioners and reducing expenses. However, if we are unable to do so on a timely basis, we will be required to seek additional capital. In that event, we would seek additional funds through various financing sources, including the sale of our equity and debt securities, however, there can be no guarantees that such funds will be available on commercially reasonable terms, if at all. If we are unable to raise additional capital, increase sales or reduce expenses, we will be unable to continue to fund our operations, develop our products, realize value from our assets, and discharge our liabilities in the normal course of business. If we become unable to continue as a going concern, we could have to liquidate our assets, and potentially realize significantly less than the values at which they are carried on our financial statements, and stockholders could lose all or part of their investment in our common stock.

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We have experienced net losses for each of the past three years, and we could experience additional losses and have difficulty achieving profitability in the future.

We had an accumulated deficit of $296.2 million as of December 31, 2022 and an accumulated deficit of $311.5 million as of September 30, 2023. We recorded net losses of $28.6 million and $16.2 million for the years ended December 31, 2022, and 2021, respectively. We recorded net losses of $4.6 million and $15.3 million for the three and nine months ended September 30, 2023 and $8.4 million and $18.8 million for the three and nine months ended September 30, 2022, respectively. In order to achieve profitability, we must increase net revenue through new sales and control our costs. Failure to increase our net revenue and decrease our costs could cause our stock price to decline and could have a material adverse effect on our business, financial condition, and results of operations.

Failure to meet covenants in the credit agreements with our debt agreements could result in acceleration of our payment obligations thereunder, and we may not be able to find alternative financing.

Under the Credit Agreement dated November 9, 2018, as amended from time to time, between BIOLASE, Inc. and SWK Funding LLC (“SWK”), we are required to maintain a specified amount of consolidated unencumbered liquid assets as of the end of each fiscal quarter, and, if we fall below those levels, generate minimum levels of revenue as of the end of each period specified in the Credit Agreement and maintain specified levels of consolidated EBITDA as of the end of each period specified in the Credit Agreement. Our ability to comply with these covenants may be affected by factors beyond our control.

If we fail to comply with the covenants contained in the Credit Agreement or if the Required Lenders (as defined in the Credit Agreement) contend that we have failed to comply with these covenants or any other restrictions, it could result in an event of default under the Credit Agreement, which would permit or, in certain events, require SWK to declare all amounts outstanding thereunder to be immediately due and payable. There can be no assurances that we will be able to repay all such amounts or able to find alternative financing in an event of a default. Even if alternative financing is available in an event of a default under the Credit Agreement, it may be on unfavorable terms, and the interest rate charged on any new borrowings could be substantially higher than the interest rate under the Credit Agreement, thus adversely affecting cash flows, results of operations, and ultimately, our ability to meet operating cash flow requirements.

The restrictive covenants in the Credit Agreement and BIOLASE’s obligation to make debt payments under the Credit Agreement may limit our operating and financial flexibility and may adversely affect the Company’s business, financial condition and results of operations.

The Credit Agreement imposes operating and financial restrictions and covenants, which may limit or prohibit our ability to, among other things:

In addition, we are required to comply with certain financial covenants under the Credit Agreement as described above.

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Such restrictive covenants in the Credit Agreement and our repayment obligations under the Credit Agreement could have adverse consequences to us, including:

If we fail to comply with the terms of the Credit Agreement and there is an event of default, the creditor(s) may foreclose upon the assets securing our obligations thereunder.

To secure the performance of our obligations under the Credit Agreement, we granted SWK security interests in substantially all of the assets of BIOLASE and certain of our foreign and domestic subsidiaries. Our failure to comply with the terms of the Credit Agreement could result in an event of default thereunder. In that event, SWK will have the option to (and, in certain circumstances, will have the obligation to) foreclose on the assets of BIOLASE and certain of our subsidiaries pledged as collateral under the Credit Agreement or the other documents executed in connection with the Credit Agreement. The foreclosure on the Company’s assets could severely and negatively impact our business, financial condition, and results of operations.

Our ability to meet our redemption obligations under the existing convertible redeemable preferred stock depends on our earnings and cash flows, and we may not have sufficient funds to redeem such shares of preferred stock.

As of September 30, 2023, 38,131 and 5,000 shares of Series J Convertible Preferred Stock and Series H Convertible Preferred Stock are outstanding and redeemable by us on September 13, 2024 and May 24, 2025, respectively. No assurances can be given that we will be successful in making the required payments to the holders of the Series J Convertible Preferred Stock and Series H Convertible Preferred Stock, or that we will be able to comply with the financial or other covenants contained in the Certificates of Designations. If we are unable to make the required cash payments or otherwise comply with the Certificates of Designations due to insufficient funds, dividends will accrue on such preferred stock, the holders of such shares of preferred stock could foreclose against our assets, and/or we could be forced into bankruptcy or liquidation.

Risks Related to Our Business and Operations

The COVID-19 pandemic has adversely affected, and may continue to adversely affect, our business, results of operations and financial condition. In addition, similar risks related to health epidemics and other outbreaks or pandemics may adversely affect our business, results of operations and financial condition.

We face risks related to health epidemics and other outbreaks, including the global outbreak of the novel coronavirus and the disease caused by it, COVID-19. During 2020, the spread of the novel coronavirus led to disruption and volatility in the global capital markets. If such disruption and volatility recurs, there could be an increase to our cost of capital and an adverse effect on our ability to access the capital markets. In addition, efforts to contain the COVID-19 pandemic led to travel restrictions, prohibitions on public gatherings and closures of dental offices and clinics throughout much of Europe and the United States. The ability of our salespeople to call on dental customers during these closures was greatly limited. In addition, most dental shows and workshops scheduled in 2020 were canceled, and many were moved to virtual gatherings in 2021.

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We are vulnerable to continued global economic uncertainty and volatility in financial markets.

Our business is highly sensitive to changes in general economic conditions as a seller of capital equipment to end users in dental professional practices. Financial markets inside the United States and internationally have experienced extreme disruption in recent times, including, among other things, extreme volatility in security prices, severely diminished liquidity and credit availability, and declining valuations of investments. We believe these disruptions are likely to have an ongoing adverse effect on the world economy. A continued economic downturn and financial market disruptions could have a material adverse effect on our business, financial condition, and results of operations. Also, the imposition of economic sanctions on Russia as a result of the conflict in Ukraine could prevent us from performing existing contracts and pursuing new growth opportunities, which could adversely affect our business, financial condition and results of operations. Furthermore, sustained uncertainty about, or worsening of, geopolitical tensions, including further escalation of war between Russia and Ukraine, further escalation in the conflict between the State of Israel and Hamas, as well as further escalation of tensions between the State of Israel and various countries in the Middle East and North Africa, could result in a global economic slowdown and long-term changes to global trade. Any or all of these factors could negatively affect Mobix Labs’ business, results of operations, financial condition and growth.

Our success depends, in part, on our relationships with, and the efforts of, third-party distributors.

We rely on exclusive and non-exclusive third-party distributors for a portion of our sales in North America and a majority of our sales in countries outside of the U.S. For the three months ended September 30, 2023 and September 30, 2022, revenue from distributors outside of the U.S. accounted for approximately 33.2% and 30.0% of our total net revenue, respectively. For the two fiscal years ended December 31, 2022 and 2021, revenue from distributors outside of the U.S. accounted for approximately 30% and 35% of our total net revenue, respectively. Our distributors have significant discretion in determining the efforts and resources they apply to the sale of our products, and we face significant challenges and risks in expanding, training and managing our third-party distributors, particularly given their geographically dispersed operations. Our distributors may not commit the necessary resources to market and sell our products to the level of our expectations, and, regardless of the resources they commit, they may not be successful. From time to time, we may face competition or pricing pressure from one or more of our non-exclusive distributors in certain geographic areas where those distributors are selling inventory to the same customer base as us. Additionally, most of our distributor agreements can be terminated with limited notice, and we may not be able to replace any terminating distributor in a timely manner or on terms agreeable to us, if at all. If we are not able to maintain our distribution network, if our distribution network is not successful in marketing and selling our products, or if we experience a significant reduction in, cancellation, or change in the size and timing of orders from our distributors, our revenues could decline significantly and lead to an inability to meet operating cash flow requirements, which would have a material adverse effect on our business, financial condition and results of operations.

Dentists and patients have been hesitant in adopting laser technologies, and our inability to overcome this hesitation could limit the market acceptance of our products and our market share.

Our dental laser systems represent relatively new technologies in the dental market. Only a small percentage of dentists use lasers to perform dental procedures. Our future success will depend on our ability to increase demand for our products by demonstrating to a broad spectrum of dentists and patients the potential performance advantages of our laser systems over traditional methods of treatment and over competitive laser systems, and our inability to do so could have a material adverse effect on our business, financial condition and results of operations. Historically, we have experienced long sales cycles because dentists have been, and could continue to be, slow to adopt new technologies on a widespread basis. As a result, we generally are required to invest a significant amount of time and resources to educate dentists about the benefits of our products in comparison to competing products and technologies before completing a sale, if any.

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Any failure in our efforts to train dental practitioners could result in the misuse of our products, reduce the market acceptance of our products and have a material adverse effect on our business, financial condition and results of operations.

There is a learning process involved for dental practitioners to become proficient users of our laser systems. It is critical to the success of our sales efforts to adequately train a sufficient number of dental practitioners. Convincing dental practitioners to dedicate the time and energy necessary for adequate training is challenging, and we cannot provide assurance that we will be successful in these efforts. If dental practitioners are not properly trained, they could misuse or ineffectively use our products, or could be less likely to appreciate our laser systems. This could also result in unsatisfactory patient outcomes, patient injury, negative publicity, FDA regulatory action, or lawsuits against us, any of which could negatively affect our reputation and sales of our laser systems.

If future data proves to be inconsistent with our clinical results or if competitors’ products present more favorable results, our revenues could decline and our business, financial condition and results of operations could be materially and adversely affected.

If new studies or comparative studies generate results that are not as favorable as our clinical results, our revenues could decline. Additionally, if future studies indicate that our competitors’ products are more effective or safer than ours, our revenues could decline. Furthermore, dental practitioners could choose not to purchase our laser systems until they receive additional published long-term clinical evidence and recommendations from prominent dental practitioners that indicate our laser systems are effective for dental applications.

Our ability to use net operating loss carryforwards could be limited.

Our ability to use our federal and state NOL carryforwards to offset potential future taxable income is dependent upon our generation of future taxable income before the expiration dates of the NOL carryforwards, and we cannot predict with certainty when, or whether we will generate sufficient taxable income to use all our NOL carryforwards. As of December 31, 2022, we had U.S. federal net operating loss carryforwards of $87.6 million. Of the total U.S. federal net operating loss carryforwards as of December 31, 2022, $11.9 million is subject to a 20 year carryover period which will be fully expired by 2038. Losses generated beginning in 2018 will carryover indefinitely. We had state net operating loss carryforwards of $50.3 million as of December 31, 2022. Our net operating loss carryforwards are subject to review and possible adjustment by the taxing authorities. There are no tax examinations currently in progress.

In the future, our ability to utilize our net operating loss carryforwards, tax credits, and built-in items of deduction, including capitalized start-up costs and research and development costs, may be significantly limited due to changes in ownership. These changes in ownership can limit the amount of these tax benefits that can be utilized each year to offset future taxable income.

In general, an ownership change, as defined in IRC Section 382, results from a transaction or series of transactions over a three-year period resulting in an ownership change of more than 50% of the outstanding stock of a company by certain stockholders or public groups. Due to the valuation allowance against deferred tax assets as of December 31, 2022, the net effect of any further limitation will have no impact on results of operations.

We could incur problems in manufacturing our products.

In order to grow our business, we must expand our manufacturing capabilities to produce the systems and accessories necessary to meet any demand we may experience. We could encounter difficulties in increasing the production of our products, including problems involving production capacity and yields, quality control and assurance, component supply, and shortages of qualified personnel. In addition, before we can begin to expand the commercial manufacture of our products, we must ensure that any such expansion of our manufacturing

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facilities, processes, and quality systems, and the manufacture of our laser systems, will comply with FDA regulations governing facility compliance, quality control, and documentation policies and procedures. In addition, our manufacturing facilities are subject to periodic inspections by the FDA, as well as various state agencies and foreign regulatory agencies. From time to time, we could expend significant resources in obtaining, maintaining, and addressing our compliance with these requirements. Our success will depend in part upon our ability to manufacture our products in compliance with the FDA’s Quality System Regulation and other regulatory requirements. We have experienced quality issues with components of our products supplied by third parties, and we could continue to do so. Our future success depends on our ability to manufacture our products on a timely basis with acceptable manufacturing costs, while at the same time maintaining good quality control and complying with applicable regulatory requirements, and an inability to do so could have a material adverse effect on our product sales, cash collections from customers, and our ability to meet operating cash flow requirements, which could have a material adverse effect on our business, financial condition, and results of operations.

We could be subject to significant warranty obligations if our products are defective, which could have a material adverse effect on our business, financial condition, and results of operations.

In manufacturing our products, we depend upon third parties for the supply of various components. Many of these components require a significant degree of technical expertise to design and produce. If we fail to adequately design, or if our suppliers fail to produce components to specification, or to comply with Quality System Regulation, or if the suppliers, or we, use defective materials or workmanship in the manufacturing process, the reliability and performance of our products will be compromised. We have experienced such non-compliance with manufacturing specifications in the past and could continue to experience such non-compliance in the future, which could lead to higher costs and reduced margins.

Our products could contain defects that cannot be repaired easily and inexpensively, and we have experienced in the past and could experience in the future some or all of the following:

Product liability claims against us could be costly and could harm our reputation.

The sale of dental and medical devices involves the risk of product liability claims against us. Claims could exceed our product liability insurance coverage limits. Our insurance policies are subject to various standard coverage exclusions, including damage to the product itself, losses from recall of our product, and losses covered by other forms of insurance, such as workers compensation. We cannot be certain that we will be able to successfully defend any claims against us, nor can we be certain that our insurance will cover all liabilities resulting from such claims. In addition, we cannot provide assurance that we will be able to obtain such insurance in the future on terms acceptable to us, or at all. Regardless of merit or eventual outcome, any product liability claim brought against us could result in harm to our reputation, decreased demand for our products, costs related to litigation, product recalls, loss of revenue, an increase in our product liability insurance rates, or the inability to secure coverage in the future, and could have a material adverse effect on our business by reducing cash collections from customers and limiting our ability to meet our operating cash flow requirements.

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Our suppliers may not supply us with a sufficient amount or adequate quality of materials, which could have a material adverse effect on our business, financial condition and results of operations.

Our business depends on our ability to obtain timely deliveries of materials, components and subassemblies of acceptable quality and in acceptable quantities from third-party suppliers. We generally purchase components and subassemblies from a limited group of suppliers through purchase orders, rather than written supply contracts. Consequently, many of our suppliers have no obligation to continue to supply us on a long-term basis. In addition, our suppliers manufacture products for a range of customers, and fluctuations in demand for the products those suppliers manufacture for others could affect their ability to deliver components for us in a timely manner. Moreover, our suppliers could encounter financial hardships, be acquired, or experience other business events unrelated to our demand for components, which could inhibit or prevent their ability to fulfill our orders and satisfy our requirements.

Certain components of our products, particularly specialized components used in our laser systems, are currently available only from a single source or limited sources. For example, the crystal, fiber and hand pieces used in our Waterlase systems are each supplied by a separate single supplier. Our dependence on single-source suppliers involves several risks, including limited control over pricing, availability, quality, and delivery schedules.

If any of our suppliers cease to provide us with sufficient quantities of our components in a timely manner or on terms acceptable to us, or ceases to manufacture components of acceptable quality, we could incur manufacturing delays and sales disruptions while we locate and engage alternative qualified suppliers, and we might be unable to engage acceptable alternative suppliers on favorable terms. In addition, we could need to reengineer our components, which could require product redesign and submission to the FDA of a 510(k) application, which could significantly delay production. Any interruption or delay in the supply of components or materials, or our inability to obtain components or materials from alternate sources at acceptable prices in a timely manner, could impair our ability to meet the demand of our customers and cause them to cancel orders or switch to competitive procedures. We are continually in the process of identifying and qualifying alternate source suppliers for our key components. There can be no assurance, however, that we will successfully identify and qualify an alternate source supplier for any of our key components or that we could enter into an agreement with any such alternate source supplier on terms acceptable to us, or at all.

We have significant international sales and are subject to risks associated with operating internationally.

International sales comprise a significant portion of our net revenue, and we intend to continue to pursue and expand our international business activities. For the three months ended September 30, 2023 and September 30, 2022, international sales accounted for approximately 33.2% and 30.0% of our total net revenue, respectively. For the two fiscal years ended December 31, 2022 and 2021, international sales accounted for approximately 30% and 35% of our net revenue, respectively. Political, economic and health conditions outside the United States, could make it difficult for us to increase our international revenue or to operate abroad. For example, efforts to contain the outbreak of COVID-19 in Asia and Europe included travel restrictions and closures of dental offices and clinics, significantly adversely impacting our international sales in 2022 and 2021.

In addition, international operations are subject to many inherent risks, which could have a material adverse effect on our revenues and operating cash flow, including among others:

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We believe that international sales will continue to represent a significant portion of our net revenue, and we intend to expand our international operations further. In international markets where our sales are denominated in U.S. dollars, an increase in the relative value of the dollar against the currency in such markets could indirectly increase the price of our products in those markets and result in a decrease in sales. We do not currently engage in any transactions as a hedge against risks of loss due to foreign currency fluctuations. However, we could do so in the future.

Security breaches of our information technology systems could harm our reputation and customer relationships. Such breaches could subject us to significant reputational, financial, legal, and operational consequences.

We rely on information systems in our business to obtain, rapidly process, analyze and manage data. Any failure by us or our third-party service providers to prevent or mitigate security breaches and improper access to or disclosure of our data could lead to a material disruption of our information systems and loss of business information. In addition, computer malware, viruses, software vulnerabilities, social engineering (predominantly spear phishing attacks), ransomware and general hacking have become more prevalent in the business environment, have occurred on our systems in the past, and may occur on our systems in the future. Such an attack could result in, among other things: the theft, destruction, loss, unavailability, misappropriation or release of confidential data and intellectual property; operational or business delays; cyber extortion; liability for a breach of personal financial and health information belonging to our customers and their patients or to our employees; and damage to our reputation.

Any of these results could have a material adverse effect on our business due to the time and expense to respond to such an attack, recover data, and remediate information system weaknesses, each of which would disrupt our daily business operations. Further, such an attack would expose us to a risk of loss, regulatory investigations, or litigation and possible liability, including under laws that protect the privacy of personal information.

Our revenue and operating results fluctuate due to seasonality and other factors, so you should not rely on quarter-to-quarter comparisons of our operating results as an indication of our future performance.

Our revenue typically fluctuates from quarter to quarter due to a number of factors, many of which are beyond our control. Revenue in the first quarter typically is lower than average, and revenue in the fourth quarter typically is stronger than average, due to the buying patterns of dental practitioners. We believe that this trend exists because a significant number of dentists purchase their capital equipment towards the end of the calendar year in order to maximize their practice earnings while seeking to minimize their taxes. They often use certain tax incentives, such as accelerated depreciation methods for purchasing capital equipment, as part of their year-end tax planning. In addition, revenue in the third quarter could be affected by vacation patterns, which can cause revenue to be flat or lower than in the second quarter of the year. Our historical seasonal fluctuations could also be impacted by sales promotions used by large dental distributors that encourage end-of-quarter and end-of-year buying in our industry.

The expenses we incur are based, in large part, on our expectations regarding future net revenue. Since many of our costs are fixed in the short term, we could be unable to reduce expenses quickly enough to avoid losses if we

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experience a decrease in expected net revenue. Accordingly, you should not rely on quarter-to-quarter comparisons of our operating results as an indication of our future performance.

Litigation against us could be costly and time-consuming to defend and could materially and adversely affect our business, financial condition and results of operations.

We are from time to time involved in various claims, litigation matters and regulatory proceedings incidental to our business, including claims for damages arising out of the use of our products or services and claims relating to intellectual property matters, employment matters, commercial disputes, competition, sales and trading practices, environmental matters, personal injury and insurance coverage. Some of these lawsuits include claims for punitive as well as compensatory damages. The defense of these lawsuits could divert our management’s attention, and we could incur significant expenses in defending these lawsuits. In addition, we could be required to pay damage awards or settlements or become subject to unfavorable equitable remedies. Moreover, any insurance or indemnification rights that we could have may be insufficient or unavailable to protect us against potential loss exposures.

Our manufacturing operations are consolidated primarily in one facility. A disruption at this facility could result in a prolonged interruption of our business and have a material adverse effect on our business, financial condition and results of operations.

Substantially all of our manufacturing operations are located at our facility in Corona, California, which is near known earthquake fault zones. Although we have taken precautions to safeguard our facilities including disaster recovery planning and off-site backup of computer data, a natural disaster such as an earthquake, fire, or flood, could seriously harm our facility and significantly disrupt our operations. Additionally, labor disputes, maintenance requirements, power outages, equipment failures, civil unrest, or terrorist attacks affecting our Corona, California facility could significantly disrupt our operations. Our business interruption insurance coverage may not cover all or any of our losses from natural disasters or other disruptions.

If we lose our key management personnel, or are unable to attract or retain qualified personnel, it could adversely affect our ability to execute our growth strategy.

Our success is dependent, in part, upon our ability to hire and retain management, engineers, marketing and sales personnel and technical, research and other personnel who are in high demand and are often subject to competing employment opportunities. Our success will depend on our ability to retain our current personnel and to attract and retain qualified personnel in the future. Competition for senior management, engineers, marketing and sales personnel and other specialized technicians is intense and we may not be able to retain our personnel. If we lose the services of any executive officers or key employees, our ability to achieve our business objectives could be harmed or delayed, which could have a material adverse effect on our daily operations, operating cash flows, results of operations, and ultimately share price. In general, our officers could terminate their employment at any time without notice for any reason.

If we fail to comply with the reporting obligations of the Exchange Act and Section 404 of the Sarbanes-Oxley Act, or if we fail to maintain adequate internal control over financial reporting, our business, financial condition and results of operations, and investors’ confidence in us, could be materially and adversely affected.

As a public company, we are required to comply with the periodic reporting obligations of the Exchange Act, including preparing annual reports, quarterly reports and current reports. Our failure to prepare and disclose this information in a timely manner and meet our reporting obligations in their entirety could subject us to penalties under federal securities laws and regulations of Nasdaq expose us to lawsuits, and restrict our ability to access financing on favorable terms, or at all.

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In addition, pursuant to Section 404 of the Sarbanes-Oxley Act, we are required to evaluate and provide a management report of our systems of internal control over financial reporting. During the course of the evaluation of our internal control over financial reporting, we could identify areas requiring improvement and could be required to design enhanced processes and controls to address issues identified through this review. This could result in significant delays and costs to us and require us to divert substantial resources, including management time, from other activities.

Any failure to maintain compliance with the requirements of Section 404 on a timely basis could result in the loss of investor confidence in the reliability of our financial statements, which in turn could, negatively impact the trading price of our stock, and adversely affect investors’ confidence in the Company and our ability to access capital markets for financing.

Risks Related to Our Intellectual Property

If the patents that we own or license, or our other intellectual property rights, do not adequately protect our technologies, we could lose market share to our competitors and be unable to operate our business profitably.

Our future success depends, in part, on our ability to obtain and maintain patent protection for our products and technology, to preserve our trade secrets and to operate without infringing the intellectual property of others. We rely on patents to establish and maintain proprietary rights in our technology and products. We currently possess a number of issued patents and patent applications with respect to our products and technology. However, we cannot ensure that any additional patents will be issued, that the scope of any patent protection will be effective in helping us address our competition, or that any of our patents will be held valid if subsequently challenged. It is also possible that our competitors could independently develop similar or more desirable products, duplicate our products, or design products that circumvent our patents. The laws of foreign countries may not protect our products or intellectual property rights to the same extent as the laws of the United States. In addition, there have been recent changes in the patent laws and rules of the U.S. Patent and Trademark Office, and there could be future proposed changes that, if enacted, have a significant impact on our ability to protect our technology and enforce our intellectual property rights. If we fail to protect our intellectual property rights adequately, our competitive position could be adversely affected, and there could be a material adverse effect on our business, financial condition, and results of operations.

If third parties claim that we infringe their intellectual property rights, we could incur liabilities and costs and have to redesign or discontinue selling certain products, which could have a material adverse effect on our business, financial condition, and results of operations.

We face substantial uncertainty regarding the impact that other parties’ intellectual property positions will have on dental and other medical laser applications. The medical technology industry has in the past been characterized by a substantial amount of litigation and related administrative proceedings regarding patents and intellectual property rights. From time to time, we have received, and we expect to continue to receive, notices of claims of infringement, misappropriation, or misuse of other parties’ proprietary rights. Some of these claims could lead to litigation. We may not prevail in any future intellectual property infringement litigation given the complex technical issues and inherent uncertainties in litigation. Any claims, with or without merit, could be time-consuming and distracting to management, result in costly litigation, or cause product shipment delays. Adverse determinations in litigation could subject us to significant liability and could result in the loss of proprietary rights. A successful lawsuit against us could also force us to cease selling or redesign products that incorporate the infringed intellectual property. Additionally, we could be required to seek a license from the holder of the intellectual property to use the infringed technology, and we may not be able to obtain a license on acceptable terms, or at all.

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Risks Related to Our Regulatory Environment

Changes in government regulation, failure to comply with government regulation or the inability to obtain or maintain necessary government approvals could have a material adverse effect on our business, financial condition and results of operations.

Our products are subject to extensive government regulation, both in the United States and globally in other countries. To clinically test, manufacture, and market products for human use, we must comply with regulations and safety standards set by the FDA and comparable state and foreign agencies. Regulations adopted by the FDA are wide-ranging and govern, among other things, product design, development, manufacture and control testing, labeling control, storage, advertising, marketing, and sales. Generally, products must meet regulatory standards as safe and effective for their intended use before being marketed for human applications. The clearance and approval process is expensive, time-consuming and uncertain. Failure to comply with applicable regulatory requirements of the FDA can result in an enforcement action, which could include a variety of sanctions, including fines, injunctions, civil penalties, recall or seizure of our products, operating restrictions, partial suspension, or total shutdown of production and criminal prosecution. The failure to receive or maintain requisite approvals for the use of our products or processes, or significant delays in obtaining such clearances or approvals, could prevent us from developing, manufacturing and marketing products and services necessary for us to remain competitive.

If we develop new products and applications or make any significant modifications to our existing products or labeling, we will need to obtain additional regulatory clearances or approvals. Any modification that could significantly affect a product’s safety or effectiveness, or that would constitute a change in its intended use, will require a new FDA 510(k) clearance. The FDA requires each manufacturer to make this determination initially, but the FDA can review any such decision and can disagree with a manufacturer’s determination. If the FDA disagrees with a manufacturer’s determination, the FDA can require the manufacturer to cease marketing and/or recall the modified device until 510(k) clearance or Premarket Approval (“PMA”) is obtained. If 510(k) clearance is denied and a PMA application is required, we could be required to submit substantially more data and conduct human clinical testing and would very likely be subject to a significantly longer review period.

Products sold in international markets are also subject to the regulatory requirements of each respective country or region. The regulations of the European Union require that a device have the CE Mark, indicating conformance with European Union laws and regulations before it can be marketed in the European Union. The regulatory international review process varies from country to country. We rely on our distributors and sales representatives in the foreign countries in which we market our products to comply with the regulatory laws of such countries. Failure to comply with the laws of such countries could prevent us from continuing to sell products in such countries. In addition, unanticipated changes in existing regulatory requirements or the adoption of new requirements could impose significant costs and burdens on us, which could increase our operating expenses.

Changes in health care regulations in the U.S. and elsewhere could adversely affect the demand for our products as well as the way in which we conduct our business and operations. For example, in 2010, President Obama signed the Affordable Care Act into law, which included various reforms impacting Medicare coverage and reimbursement, including revision to prospective payment systems, any of which could adversely impact any Medicare reimbursements received by our end-user customers. New legislation may be enacted as President Biden and Congress consider further reform. In addition, as a result of the focus on health care reform, there is risk that Congress could implement changes in laws and regulations governing health care service providers, including measures to control costs, and reductions in reimbursement levels. We cannot be sure that government or private third-party payers will cover and reimburse the procedures using our products, in whole or in part, in the future, or that payment rates will be adequate. If providers cannot obtain adequate coverage and reimbursement for our products, or the procedures in which they are used, our business, results of operations and financial condition could suffer.

Additionally, we may be subject to the Excise Tax (as defined below) included in the Inflation Reduction Act (“IRA”) enacted in August 2022 in connection with redemptions of our common stock, Series H Convertible

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Preferred Stock, or Series J Convertible Preferred Stock. In particular, an excise tax is imposed on “covered corporations” (generally, publicly-traded domestic corporations) equal to 1% of the fair market value of certain stock repurchased after December 31, 2022 (the “Excise Tax”). It is likely that the Excise Tax will generally apply to any redemptions of shares of our Series H Convertible Preferred Stock or common stock after December 31, 2022, and any redemption of shares of our Series J Convertible Preferred Stock. The Excise Tax base is reduced by the fair market value of any issuances of the covered corporation’s stock during its taxable year. The fair market value of any of shares our Series H Convertible Preferred Stock, Series J Convertible Preferred Stock, or common stock that are redeemed may exceed the fair market value of any of our stock issued during the same taxable year. Consequently, the Excise Tax may reduce the amount of cash we have available to shareholders.

We could be subject to, or otherwise affected by, federal and state health care laws, including fraud and abuse and health information privacy and security laws, and we could face substantial penalties if we are unable to fully comply with such regulations.

We are directly or indirectly, through our customers, subject to extensive regulation by both the federal government and the states and foreign countries in which we conduct our business. If our past or present operations are found to be in violation of governmental laws or regulations to which we or our customers are subject, we may be subject to penalties, including civil, criminal and administrative penalties, damages, fines, disgorgement, individual imprisonment, possible exclusion from participation in federal and state funded healthcare programs, contractual damages, and the curtailment or restricting of our operations, as well as additional reporting obligations and oversight if we become subject to a corporate integrity agreement or other agreement to resolve allegations of non-compliance with these laws. This could harm our ability to operate our business and our financial results. If we are required to obtain permits or licensure under these laws that we do not already possess, we could become subject to substantial additional regulation or incur significant expense.

Any penalties, damages, fines, or curtailment or restructuring of our operations could be significant. The risk of potential non-compliance is increased by the fact that many of these laws have not been fully interpreted by applicable regulatory authorities or the courts, and their provisions are open to a variety of interpretations and additional legal or regulatory change. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses, divert our management’s attention from the operation of our business, damage our reputation and cause a material adverse effect on sales, cash collections, and our ability to meet operating cash flow requirements.

Changes to the reimbursement rates for procedures performed using our products and measures to reduce healthcare costs may adversely impact our business.

Dentists and other health care providers that purchase and use our products may rely on third-party payers, including Medicare, Medicaid, and private payers to cover and reimburse all or part of the cost of the procedures performed using our products. As a result, coverage and reimbursement of the procedures using our products is dependent in part on the policies of these payers. There is a significant trend in the healthcare industry by public and private payers to contain or reduce their costs, including by taking the following steps, among others: decreasing the portion of costs payers will cover, ceasing to provide full payment for certain products or procedures depending on outcomes, or not covering certain products or procedures at all. If payers implement any of the foregoing with respect to our procedures performed using our products, it would have an adverse impact on our revenue and results of operations.

There have been, and likely will continue to be, legislative and regulatory proposals at the foreign, federal and state levels directed at broadening the availability of healthcare and containing or lowering the cost of healthcare. We cannot predict the initiatives that may be adopted in the future. Any reduction in reimbursement rates for dental procedures using our products may adversely affect our customers’ businesses and cause them to enact cost reduction measures, which could result in reduced demand for our product or additional pricing pressures.

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We could be exposed to liabilities under the FCPA, and any determination that we violated the FCPA could have a material adverse effect on our business, financial condition and results of operations.

In light of our operations outside the United States, we are subject to the FCPA, which generally prohibits companies and their intermediaries from offering to pay, promising to pay, or authorizing the payment of money or anything of value to non-U.S. officials for the purpose of influencing any act or decision of the foreign official in his/her capacity or to secure any other improper advantage to obtain or retain business. Violation of the anti-bribery provisions of the FCPA can result in criminal fines of up to $2 million and civil penalties of up to $23,011 for each violation. Individuals, including officers, directors, stockholders, and agents of companies, can be subject to a criminal fine of up to $250,000 and imprisonment, in addition to civil penalties of up to $23,011, per violation.

Also, under the alternative fines provision of the FCPA an individual or entity can be fined an amount of up to twice the gross pecuniary gain or loss from a violation. We could be held liable for actions taken by our distributors in violation of the FCPA, even though such partners are foreign companies that may not be subject to the FCPA. Any determination that we violated the FCPA could result in sanctions that could have a material adverse effect on our business, financial condition and results of operations.

Product sales or introductions could be delayed or canceled as a result of the FDA regulatory requirements applicable to laser products, dental devices, or both, which could cause our sales or profitability to decline and have a material adverse effect on our business, financial condition, and results of operations.

The process of obtaining and maintaining regulatory approvals and clearances to market a medical device from the FDA and similar regulatory authorities abroad can be costly and time-consuming, and we cannot provide assurance that such approvals and clearances will be granted. Pursuant to FDA regulations, unless exempt, the FDA permits commercial distribution of a new medical device only after the device has received 510(k) clearance or is the subject of an approved PMA. The FDA will clear marketing of a medical device through the 510(k) process if it is demonstrated that the new product is substantially equivalent to other 510(k)-cleared products. The PMA process is more costly, lengthy and uncertain than the 510(k) process, and must be supported by extensive data, including data from preclinical studies, and human clinical trials. Because we cannot provide assurance that any new products, or any product enhancements, that we develop will be subject to the shorter 510(k) clearance process, significant delays in the introduction of any new products or product enhancement could occur. We cannot provide assurance that the FDA will not require a new product or product enhancement to go through the lengthy and expensive PMA process. Delays in obtaining regulatory clearances and approvals could:

Although we have obtained 510(k) clearance from the FDA to market our dental laser systems, we cannot provide assurance that we will not be required to obtain new clearances or approvals for modifications or improvements to our products.

Our marketed products may be used by healthcare practitioners for indications that are not cleared or approved by the FDA. If the FDA finds that we marketed our products in a manner that promoted off-label use, we may be subject to civil or criminal penalties.

Under the United States Federal Food, Drug, and Cosmetic Act and other laws, we are prohibited from promoting our products for off-label uses. This means that we may not make claims about the use of any of our

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marketed medical device products outside of their approved or cleared indications, and that our website, advertising, promotional materials and training methods and materials may not promote or encourage unapproved uses. Note, however, that the FDA does not generally restrict healthcare providers from prescribing products for off-label uses (or using products in an off-label manner) in their practice of medicine. Should the FDA determine that our activities constitute the promotion of off-label uses, the FDA could bring action to prevent us from distributing our devices for the off-label use and could impose fines and penalties on us and our executives. In addition, failure to follow FDA rules and guidelines relating to promotion and advertising can result in, among other things, the FDA’s refusal to approve or clear other products in our pipeline, the withdrawal of an approved product from the market, product recalls, fines, disgorgement of profits, operating restrictions, injunctions, or criminal prosecutions. Any of these adverse regulatory actions could result in substantial costs and could significantly and adversely impact our reputation and divert management’s attention and resources, which could have a material adverse effect on our business.

Our products are subject to recalls and other regulatory actions after receiving FDA clearance or approval.

The FDA and similar governmental bodies in other countries have the authority to require the recall of our products in the event of material deficiencies or defects in design or manufacture. A government mandated or voluntary recall by us could occur as a result of component failures, manufacturing errors, or design defects, including errors in labeling or other safety issues. Any recall would divert management’s attention and financial resources and harm our reputation with customers. Any recall involving our laser systems would be particularly harmful to us, because our laser systems comprise such an important part of our portfolio of products. However, any recall could have a material adverse effect on our business, financial condition and results of operations.

If we or our third-party manufacturers fail to comply with the FDA’s Quality System Regulation (“QSR”), our business would suffer.

We and our third-party manufacturers are required to demonstrate and maintain compliance with the FDA’s QSR. The QSR is a complex regulatory scheme that covers the methods and documentation of the design, testing, control, manufacturing, labeling, quality assurance, packaging, storage and shipping of our product. The FDA enforces the QSR through periodic unannounced inspections. We anticipate that in the future we will be subject to such inspections. Our failure, or the failure of our third-party manufacturers, to take satisfactory corrective action in response to an adverse QSR inspection could result in enforcement actions, including a public warning letter, a shutdown of our manufacturing operations, a recall of our product, civil or criminal penalties, or other sanctions, which could have a material adverse effect on our business, financial condition and results of operations.

If our product causes or contributes to a death or a serious injury, or malfunctions in certain ways, we will be subject to medical device reporting regulations, which can result in voluntary corrective actions or agency enforcement actions.

Under the FDA’s medical device reporting regulations, medical device manufacturers are required to report to the FDA information that a device has or may have caused or contributed to a death or serious injury or has malfunctioned in a way that would be likely to cause or contribute to death or serious injury if the malfunction of the device were to recur. If we fail to report these events to the FDA within the required timeframes, or at all, the FDA could take enforcement action against us. Any such adverse event involving our devices could result in future voluntary corrective actions, such as recalls or customer notifications, or agency action, such as inspection or enforcement action. Any corrective action, whether voluntary or involuntary, as well as mounting a defense to a legal action, if one were to be brought, would require the dedication of our time and capital, distract management from operating our business, and could have a material adverse effect on our business, financial condition and results of operations.

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Risks Related to Our Common Stock

Failure to meet NASDAQ’s continued listing requirements could result in the delisting of our common stock, negatively impact the price of our common stock and negatively impact our ability to raise additional capital.

On January 11, 2023, we received a deficiency letter from the Listing Qualifications Department (the “Staff”) of the Nasdaq Stock Market (“Nasdaq”) notifying us that, for the last 30 consecutive business days, ending on January 10, 2023, the bid price for our common stock had closed below the minimum $1.00 per share requirement for continued inclusion on the Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2) (the “Bid Price Rule”). In accordance with Nasdaq rules, we were provided an initial period of 180 calendar days, or until July 10, 2023 (the “Compliance Date”), to regain compliance with the Bid Price Rule.

On June 8, 2023, we were notified by the Staff of Nasdaq that we did not meet the minimum closing bid price requirement of $1.00 for continued listing, as set forth in the Bid Price Rule, as the Staff has determined that as of June 8, 2023, the Company’s securities had a closing bid price of $0.10 or less for ten consecutive trading days, from May 24, 2023 through June 7, 2023. As such, the Staff has determined to delist the Company’s common stock from the Nasdaq Capital Market and to suspend trading of the common stock at the opening of business on June 20, 2023, and file a Form 25-NSE with the SEC. We timely requested a hearing to appeal this determination, which stayed the suspension of our common stock pending the panel’s decision.

We subsequently requested the Panel grant us a temporary exception to regain compliance with the Bid Price Rule. On July 5, 2023, the Panel granted us an exception until August 11, 2023 to demonstrate bid price compliance subject to us taking the following actions: (i) on July 20, 2023, we shall obtain stockholder approval for a reverse stock split at a ratio that is sufficient to regain and maintain long term compliance with the Bid Price Rule; (ii) on or before July 31, 2023, we shall effect a reverse stock split and, thereafter, maintain a $1.00 closing bid price for a minimum of ten consecutive business days; and (iii) on August 11, 2023, we shall have demonstrated compliance with the Bid Price Rule, by evidencing a closing bid price of $1.00 or more per share for a minimum of ten consecutive trading sessions.

On July 20, 2023, we held a special meeting of our stockholders where the stockholders approved an amendment to our Certificate of Incorporation to effect a reverse stock split of our common stock, at a ratio between one-for-two (1:2) and one-for-one hundred (1:100). Immediately after the special meeting, our Board approved the 2023 Reverse Stock Split. On July 26, 2023, we filed an amendment to the Certificate of Incorporation with the Secretary of State of the State of Delaware to effect the 2023 Reverse Stock Split, which became effective on July 27, 2023.

On August 14, 2023, we received a letter from the Nasdaq Office of General Counsel confirming the decision of the Panel that we currently demonstrate compliance with the requirements for continued listing on the Nasdaq Capital Market.

On November 14, 2023, we received a deficiency letter from the Staff notifying us that, based on our stockholders’ equity of $332,000 as of September 30, 2023, as reported in the our Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023, we were no longer in compliance with the minimum stockholders’ equity requirement for continued listing on the Nasdaq Capital Market under Nasdaq Listing Rule 5550(b)(1), which requires listed companies to maintain stockholders’ equity of at least $2.5 million. We were provided until December 29, 2023 to provide Nasdaq with a specific plan to achieve and sustain compliance with the foregoing listing requirement, which plan was provided to Nasdaq on December 22, 2023. Nasdaq subsequently requested that we submit a plan with greater detail, which we submitted to Nasdaq on January 22, 2024. See “Prospectus Summary—Deficiency Letter from Nasdaq” for a more detailed description of the contents of the letter that we submitted to Nasdaq on January 22, 2024.

We intend to attempt to take actions to restore our compliance with Nasdaq’s listing requirements, but we can provide no assurance that we will be able to do so. Any perception that we may not regain compliance or a

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delisting of our common stock by Nasdaq could adversely affect our ability to attract new investors, decrease the liquidity of the outstanding shares of our common stock, reduce the price at which such shares trade and increase the transaction costs inherent in trading such shares with overall negative effects for our stockholder. In addition, delisting of our common stock from Nasdaq could deter broker-dealers from making a market in or otherwise seeking or generating interest in our common stock, and might deter certain institutions and persons from investing in our common stock.

In the event of a de-listing, we would take actions to restore our compliance with the Nasdaq listing requirements, but we can provide no assurance that any such action taken by us would allow our common stock become listed again, stabilize the market price or improve the liquidity of our common stock, prevent our common stock from dropping below the Nasdaq listing requirements.

Our stock price has been, and could continue to be, volatile.

There has been significant volatility in the market price and trading volume of equity securities, which may be unrelated to the financial performance of the companies issuing the securities. These broad market fluctuations could negatively affect the market price of our stock. The market price and volume of our common stock could fluctuate, and in the past has fluctuated, more dramatically than the stock market in general. Stockholders may not be able to resell their shares at or above the price they paid for them due to fluctuations in the market price of our stock caused by changes in our operating performance or prospects or other factors. Some factors, in addition to the other risk factors identified above, that could have a significant effect on our stock market price include, but are not limited to, the following:

Because we do not intend to pay cash dividends on our common stock, our stockholders will benefit from an investment in our common stock only if it appreciates in value.

We intend to retain our future earnings, if any, to finance the expansion of our business and do not expect to pay any cash dividends on our common stock in the foreseeable future. As a result, the success of an investment in our securities will depend entirely upon any future appreciation. There is no guarantee that our common stock will appreciate in value or even maintain the price at which our stockholders purchased their shares.

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If securities or industry analysts do not publish research or publish inaccurate or unfavorable research about our business, our share price and trading volume could decline.

The trading market for our common stock will depend on the research and reports that securities or industry analysts publish about us or our business. We do not have any control over these analysts. There can be no assurance that analysts will cover us or provide favorable coverage. If one or more of the analysts who cover us downgrade our stock or change their opinion of our stock, our share price would likely decline. If one or more of these analysts cease coverage of the Company or fail to regularly publish reports on the Company, we could lose visibility in the financial markets, which could cause our share price or trading volume to decline.

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CAUTIONARY STATEMENTS REGARDING FORWARD-LOOKING STATEMENTS

This prospectus contains “forward-looking statements,” as defined in Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Exchange Act that involve risks, uncertainties and assumptions, which could cause actual results to differ materially from management’s expectations. Such forward-looking statements include statements, predictions or expectations regarding market opportunities, our plans for future products and services and enhancements of existing products and services, future market growth and our anticipated growth strategies, future demand for improved dental care and dental laser equipment, expansion of our international operations, compliance with laws and regulatory requirements, the impact of cost-saving measures and future decreases in expenses, statements regarding the effects of seasonality on revenue, anticipated cash needs, capital requirements and capital expenditures, needs for additional financing, anticipated use of proceeds from debt or equity financing, use of working capital, plans to explore potential collaborations, potential acquisitions of products and technologies, effects of engineering and development efforts, plans to expand our field sales force, the development of distributor relationships, our ability to attract customers, the adequacy of our facilities, products and solutions from competitors, our ability to maintain product quality standards, protection of patents and other technology, the ability of third-party payers to pay for costs of our products, limitations on capital expenditures, critical accounting policies and the impact of recent accounting pronouncements, recording tax benefits or other financial items in the future, plans, strategies, expectations or objectives of management for future operations, our financial condition or prospects and any other statement that is not historical fact. Forward-looking statements are identified by the use of words such as “may,” “might,” “will,” “intend,” “should,” “could,” “can,” “would,” “continue,” “expect,” “believe,” “anticipate,” “estimate,” “predict,” “outlook,” “potential,” “plan,” “seek,” and similar expressions and variations or the negatives of these terms or other comparable terminology.

Forward-looking statements are based on the expectations, estimates, projections, beliefs and assumptions of our management based on information available to management as of the date on which such forward-looking statement was made, all of which are subject to change. Forward-looking statements are subject to risks, uncertainties and other factors that are difficult to predict and could cause actual results to differ materially from those stated or implied by our forward-looking statements. Factors that could cause or contribute to such differences include, but are not limited to:

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Further information about factors that could materially affect the Company, including our results of operations, financial condition and stock price, is contained under the heading “Risk Factors” in this prospectus. Except as required by law, we undertake no obligation to revise or update any forward-looking statements to reflect changed assumptions, the occurrence of anticipated or unanticipated events, new information, changes to future results over time or otherwise.

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USE OF PROCEEDS

We estimate that our net proceeds from the sale of all Units offered in this offering will be approximately $6.5 million, after deducting placement agent fees and estimated offering expenses payable by us, based on an assumed offering price of $0.70 per Unit, which represents the closing price of our common stock on Nasdaq on February 5, 2024, assuming no issuance of Pre-Funded Units in connection with this offering. We estimate that our net proceeds from the sale of 50% of the Units offered in this offering will be approximately $3.0 million, after deducting placement agent fees and estimated offering expenses payable by us, based on an assumed offering price of $0.70 per Unit, which represents the closing price of our common stock on Nasdaq on February 5, 2024, assuming no issuance of Pre-Funded Units in connection with this offering. These estimates exclude the proceeds, if any, from the exercise of the Warrants issued in connection with this offering. If all of the Class A Warrants offered in this offering were sold and exercised for cash, assuming an exercise price of $1.05 per share (150% of the assumed offering price per Unit in this offering), we would receive additional proceeds of approximately $11.25 million. If all of the Class B Warrants offered in this offering were sold and exercised for cash, assuming an exercise price of $1.19 per share (170% of the assumed offering price per Unit in this offering), we would receive additional proceeds of approximately $12.75 million. If 50% of the Class A Warrants offered in this offering were sold and exercised for cash, assuming an exercise price of $1.05 per share (150% of the assumed offering price per Unit in this offering), we would receive additional net proceeds of approximately $5.625 million. If 50% of the Class B Warrants offered in this offering were sold and exercised for cash, assuming an exercise price of $1.19 per share (170% of the assumed offering price per Unit in this offering), we would receive additional net proceeds of approximately $6.375 million. We cannot predict when or if any of these Warrants will be exercised. It is possible that these Warrants may expire and may never be exercised.

Each $0.10 increase (decrease) in the assumed public offering price of $0.70 per Unit, which represents the closing price of our common stock on Nasdaq on February 5, 2024, would increase (decrease) the net proceeds to us from this offering by approximately $1.0 million, assuming the number of securities offered, as set forth on the cover page of this prospectus, remains the same, and after deducting placement agent fees and estimated offering expenses payable by us and assuming no exercise of Warrants and no issuance of Pre-Funded Units in connection with this offering. Each 500,000 Unit increase (decrease) in the number of Units offered by us in this offering would increase (decrease) the net proceeds to us from this offering by approximately $325,500, assuming that the price per Unit for the offering remains at the assumed price of $0.70, which represents the closing price of our common stock on Nasdaq on February 5, 2024, and after deducting the placement agent fees and estimated offering expenses payable by us and assuming no exercise of the Warrants and no issuance of Pre-Funded Units in connection with this offering.

Because this is a best-efforts offering and there is no minimum offering amount required as a condition to the closing of this offering, the actual offering amount, the placement agent fees and net proceeds to us are not presently determinable and may be substantially less than the maximum amounts set forth on the cover page of this prospectus.

We intend to use the proceeds of this offering for working capital and for general corporate purposes. We may temporarily invest the net proceeds in short-term, interest-bearing instruments or other investment-grade securities.

The precise amount and timing of the application of such net proceeds will depend upon our funding requirements and the availability and cost of other funds. Our Board and management will have considerable discretion in the application of the net proceeds from this offering, and it is possible that we may allocate the proceeds differently than investors in the offering may desire or that we may fail to maximize the return on these proceeds. You will be relying on the judgment of our management with regard to the use of proceeds from this offering, and you will not have the opportunity, as part of your investment decision, to assess whether the proceeds are being used appropriately.

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CAPITALIZATION

The following table sets forth our consolidated cash and cash equivalents and capitalization as of September 30, 2023:

You should read the following table in conjunction with the sections entitled “Use of Proceeds” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this prospectus and our unaudited consolidated financial statements and related notes included elsewhere in this prospectus.

A $0.10 increase (decrease) in the assumed public offering price of $0.70 per Unit would increase (decrease) the cash and cash equivalents, additional paid-in capital, total stockholders’ equity (deficit) and total capitalization by approximately $1.0 million assuming that the number of Units offered by us, as set forth on the cover page of this prospectus, remains the same and after deducting the estimated placement agent fees and estimated offering

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expenses payable by us and assuming no exercise of Warrants and no issuance of Pre-Funded Units in connection with this offering.

Similarly, a 500,000 Unit increase (decrease) in the number of Units offered by us in this offering, assuming that the public offering price per Unit for the offering remains at the assumed price $0.70, would increase (decrease) the cash and cash equivalents, additional paid-in capital, total stockholders’ equity (deficit) and total capitalization by approximately $325,500, assuming the assumed public offering price of $0.70 per Unit, which represents the closing price of our common stock on Nasdaq on February 5, 2024, remains the same, no exercise of Warrants and no issuance of Pre-Funded Units in connection with this offering and after deducting estimated placement agent fees and estimated offering expenses payable by us.

The number of shares of our common stock that will be outstanding immediately after this offering as shown above is based on 2,266,103 shares outstanding as of September 30, 2023, and excludes:

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Except as otherwise noted, all information in this prospectus assumes:

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DILUTION

If you purchase securities in the offering, you will experience immediate dilution to the extent of the difference between the public offering price per share included as part of the Units or that may be issued upon the exercise of any Pre-Funded Warrants included as part of the Pre-Funded Units and our net tangible book value per share immediately after the offering. Net tangible book value per share is equal to the amount of our total tangible assets, less total liabilities, divided by the number of outstanding shares of our common stock. As of September 30, 2023, our historical net tangible book value was approximately $3.0 million, or approximately $1.31 per share.

Our pro forma net tangible book value as of September 30, 2023 was $4.1 million or approximately $0.97 per share. Pro forma net tangible book value per shares represents our total tangible assets less our total liabilities after giving effect to: (i) the issuance of 331,000 shares of our common stock and our receipt of net proceeds of $1.1 million from the sale of securities in the registered direct offering and concurrent private placement completed in December 2023; (ii) the issuance of 816,435 shares of common stock upon conversion of preferred stock subsequent to September 30, 2023; (iii) the issuance of 2,397 shares of common stock upon the vesting of RSUs; and (iv) the issuance of 778,689 shares of common stock upon exercise of pre-funded warrants issued on December 8, 2023.

After giving effect to the (i) pro forma adjustments set forth above and (ii) the assumed sale of 10,714,285 Units in this offering at an assumed public offering price of $0.70 per Unit, which represents the closing price of our common stock on Nasdaq on February 5, 2024 and after deducting the placement agent fees and estimated offering expenses payable by us, but assuming that no Pre-Funded Units are sold in the offering and no exercise of any of the Warrants issued in connection with this offering, our pro forma as adjusted net tangible book value as of September 30, 2023 would have been approximately $10.6 million, or approximately $0.71 per share. This represents an immediate decrease in net tangible book value of $0.26 per share to existing stockholders and immediate increase of $0.01 in net tangible book value per share to new investors purchasing Units in this offering compared to the assumed public offering price per share in this offering.

The following table illustrates this dilution on a per-share basis (unaudited):

A $0.10 increase in the assumed public offering price of $0.70 per Unit, based on the closing price of our common stock as reported on the Nasdaq Capital Market on February 5, 2024, would decrease the number of shares of common stock offered in this offering by approximately 1.3 million shares of our common stock and a $0.10 decrease in the assumed public offering price of $0.70 per Unit, would increase the number of shares of our common stock offered in this offering by approximately 1.8 million shares.

We may also increase or decrease the number of Units we are offering. An increase of 2,000,000 in the number of Units offered by us in this offering would increase our as adjusted net tangible book value by approximately $1.3 million, or $0.70 per share, and the offering would remain anti-dilutive to investors participating in this offering, assuming the assumed offering price per Unit remains the same, no issuance of Pre-Funded Units in this offering and after deducting the estimated placement agent commissions and estimated offering expenses payable by us. Similarly, a decrease of 2,000,000 in the number of Units offered by us would decrease our as adjusted net tangible book value by approximately $1.3 million or $0.72 per Unit, and the offering would remain anti-dilutive to investors participating in this offering, assuming the assumed offering price per Units remains the same, no issuance of Pre-Funded Units in this offering and after deducting the estimated placement agent commissions and

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estimated offering expenses payable by us. The information discussed above is illustrative only and will adjust based on the actual offering price, the actual number of Units we offer in this offering, and other terms of this offering determined at pricing.

Assuming an assumed offering price of $0.70 per Unit in this offering, which was the closing price of our common stock on the Nasdaq on February 5, 2024, investors would not suffer immediate and substantial dilution in the net tangible book value of the common stock purchased in this offering; however, this is based on an assumed offering price and an assumed number of Units being offered.

The number of shares of our common stock that will be outstanding immediately after this offering as shown above is based on 2,266,103 shares outstanding as of September 30, 2023, and excludes:

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Except as otherwise noted, all information in this prospectus assumes:

The foregoing discussion and table do not take into account further dilution to new investors that could occur upon the exercise, settlement or conversion of outstanding options, restricted stock units, warrants, phantom restricted stock units, Series H Convertible Preferred Stock, Series H Warrants, Series J Convertible Preferred Stock and Series J Warrants. In addition, we may choose to raise additional capital due to market conditions or strategic considerations. To the extent that additional capital is raised through the sale of equity or convertible debt securities, the issuance of these securities could result in further dilution to our stockholders.

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MARKET INFORMATION FOR SECURITIES AND DIVIDEND POLICY

Our common stock is currently listed on the Nasdaq Capital Market under the symbol “BIOL.” The last reported sale price of our common stock on Nasdaq on February 5, 2024 was $0.70 per share of common stock.

Holders of Record

As of February 5, 2024, we had approximately 11 holders of record of our common stock. Because many of our shares of common stock are held by brokers and other institutions on behalf of stockholders, this number is not indicative of the total number of stockholders represented by these stockholders of record.

Dividends

We have not declared or paid dividends to common stockholders since inception and do not plan to pay cash dividends in the foreseeable future to common stockholders. We currently intend to retain earnings, if any, to finance our growth.

Dividends on the Series H Convertible Preferred Stock are paid in-kind (“Series H PIK dividends”) in additional shares of Series H Convertible Preferred Stock based on the stated value of $50.00 per share at an assumed dividend rate of 20.0%. The PIK dividends will be a one-time payment payable to holders of the Series H Convertible Preferred Stock of record at the close of business on the one-year anniversary of the original issue date.

Dividends on the Series J Convertible Preferred Stock are paid in-kind (“Series J PIK dividends”) in additional shares of Series J Convertible Preferred Stock based on the stated value of $100.00 per share at an assumed dividend rate of 5.0% per quarter. The PIK dividends are paid quarterly payable to holders of the Series J Convertible Preferred Stock of record at the close of business on record at the close of business on October 31, 2023, January 31, 2024, April 30, 2024 and July 31, 2024. We paid a total of 3,094 shares of Series J PIK dividends to holders of record on October 31, 2023 and a total of 1,217 shares of Series J PIK dividends to holders of record on January 31, 2024.

Issuer Purchases of Equity Securities

None.

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MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Overview

We are a leading provider of advanced laser systems for the dental industry. We develop, manufacture, market, and sell laser systems that provide significant benefits for dental practitioners and their patients. Our proprietary systems allow dentists, periodontists, endodontists, pediatric dentists, oral surgeons, and other dental specialists to perform a broad range of minimally invasive dental procedures, including cosmetic, restorative, and complex surgical applications. Our laser systems are designed to provide clinically superior results for many types of dental procedures compared to those achieved with drills, scalpels, and other conventional instruments. Potential patient benefits include less pain, fewer shots, faster healing, decreased fear and anxiety, and fewer appointments. Potential practitioner benefits include improved patient care and the ability to perform a higher volume and wider variety of procedures.

We offer two categories of laser system products: Waterlase (all-tissue) systems and diode (soft-tissue) systems. Our flagship brand, the Waterlase, uses a patented combination of water and laser energy and is FDA cleared for over 80 clinical indications to perform most procedures currently performed using drills, scalpels, and other traditional dental instruments for cutting soft and hard tissue. For example, Waterlase safely debrides implants without damaging or significantly affecting surface temperature and is an effective, safe solution for preserving sick implants. In addition, Waterlase disinfects root canals more efficiently than some traditional chemical methods. We offer our diode laser systems to perform soft tissue, pain therapy, and cosmetic procedures, including teeth whitening. As of December 31, 2023 we maintained approximately 241 active and 21 pending United States and international patents, with the majority relating to our Waterlase technology. Our patent portfolio is regularly evaluated, and we strategically prioritize our core patents to ensure optimal intellectual property coverage while minimizing annual maintenance fees. From 1998 through December 31, 2023, we have sold over 47,700 laser systems in over 80 countries around the world, and we believe that Waterlase iPlus is the world’s best-selling all-tissue dental laser. Since 1998, we have been the global leading innovator, manufacturer, and marketer of dental laser systems.

We also manufacture and sell consumable products and accessories for our laser systems. Our Waterlase and diode systems use disposable laser tips of differing sizes and shapes depending on the procedure being performed. We also market flexible fibers and hand pieces that dental practitioners replace at some point after initially purchasing laser systems. For our Epic line of diode laser systems, we sell teeth whitening gel kits. During the quarter ended September 30, 2023, the sale of lasers accounted for approximately 61% of our total sales, and consumables, accessories, and services accounted for approximately 39% of our total sales.

We currently operate in a single reportable business segment. We had net revenues of $10.9 million and $35.7 million for the three and nine months ended September 30, 2023, respectively, and net revenues of $12.0 million and $34.4 million for the three months ended September 30, 2022, respectively. We had net losses of $4.6 million and $15.3 million for the three and nine months ended September 30, 2023, respectively, and $8.4 million and $18.8 million for the three and nine months ended September 30, 2022, respectively. We had total assets of $38.7 million and $38.2 million as of September 30, 2023 and December 31, 2022, respectively.

Business and Outlook

Our Waterlase systems precisely cut hard tissue, bone, and soft tissue with minimal or no damage to surrounding tissue and dental structures. Our diode systems, which include the Epic system, are designed to complement our Waterlase systems, and are used only in soft tissue procedures, pain therapy, hygiene, and cosmetic applications, including teeth whitening. The diode systems, together with our Waterlase systems, offer practitioners a broad product line with a range of features and price points.

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We also manufacture and sell consumable products and accessories for our laser systems. Our Waterlase and diode systems use disposable laser tips of differing sizes and shapes depending on the procedure being performed. We also market flexible fibers and hand pieces that dental practitioners replace at some point after initially purchasing laser systems. For our Epic systems, we sell teeth whitening gel kits.

Due to the limitations associated with traditional and alternative dental instruments, we believe there is a large market opportunity for all-tissue dental laser systems that provide superior clinical outcomes, reduce the need to use anesthesia, help reduce trauma, pain, and discomfort associated with dental procedures, and increase patient acceptance for treatment protocols.

Our strategy is to increase awareness and demand for (i) our products among dental practitioners by educating dental practitioners and patients about the clinical benefits of our product suite and (ii) our laser systems among patients by educating patients about the clinical benefits of the Waterlase and diode systems. An important goal of ours is to increase consumables revenue by selling more single-use accessories used by dental practitioners when performing procedures using our dental laser systems. In the short term, we are striving for operating excellence through lean enterprise initiatives, with a specific focus on our sales strategy and cash flow management, coupled with optimizing our engineering capabilities to develop innovative new products.

We also seek to create value through innovation and leveraging existing technologies into adjacent medical applications. We plan to expand our product line and clinical applications by developing enhancements and transformational innovations, including new clinical solutions for dental applications and for other adjacent medical applications. In particular, we believe that our existing technologies can provide significant improvements over existing standards of care in fields including ophthalmology, otolaryngology, orthopedics, podiatry, pain management, aesthetics/dermatology, veterinary, and consumer products. We plan to continue to explore potential collaborations to apply our proprietary laser technologies with expanded FDA-cleared indications to other medical applications in the future.

The Company experienced revenue decline of 9% and revenue growth of 4% for the three and nine months ended September 30, 2023, respectively, compared to the same periods in 2022. The Company is currently forecasting revenue for fiscal year 2023 to be above fiscal year 2022, as the Company’s strategy described above continues to generate sales to new customers and additional consumable sales to existing customers. See “Prospectus Summary—Preliminary 2023 Unaudited Results” elsewhere in this prospectus for disclosure of certain preliminary range of our unaudited revenue results and net operating loss for the fiscal year ended December 31, 2023.

Recent Developments

Registered Direct Offering and Concurrent Private Placement

On December 8, 2023, we issued pursuant to the terms of a Securities Purchase Agreement that we entered into on December 6, 2023 with a single institutional investor, the following securities: (i) in a registered direct offering, 331,000 shares of our common stock and pre-funded warrants to purchase 779,940 shares of our common stock with an exercise price of $0.001 per share, and (ii) in a concurrent private placement, warrants to purchase an aggregate of 2,221,880 shares of common stock with an exercise price of $1.23. The combined purchase price for one share of our common stock and two common warrants was $1.23, and the combined purchase price for one pre-funded warrant and two common warrants was $1.229. We received aggregate gross proceeds of approximately $1.4 million.

Series J Convertible Preferred Stock

On September 13, 2023, we entered into an underwriting agreement pursuant to which we agreed to sell to the underwriters in a firm commitment underwritten public offering 75,000 units, with each unit consisting of (A) one share of our Series J Convertible Preferred Stock, and (B) one Series J Warrant to purchase one-half of one (0.50) share of Series J Convertible Preferred Stock, at a price to the public of $60.00 per unit, less underwriting discounts and commissions. The public offering price of $60.00 per unit reflects the issuance of the Series J Convertible

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Preferred Stock with an original issue discount of 40%. We also registered additional shares of Series J Convertible Preferred Stock that will be issued, if and when the Board declares such dividends, as Series J PIK dividends and the shares of common stock issuable upon conversion of the Series J Convertible Preferred Stock issued as Series J PIK dividends. Each Series J Warrant has an exercise price of $30.00 per share, is exercisable for one-half of one (0.5) share of Series J Convertible Preferred Stock, is immediately exercisable and will expire one (1) year from the date of issuance. Gross proceeds from the offering were $4.5 million before broker fees and related expenses.

Deficiency Letter from Nasdaq

On November 14, 2023, we received a deficiency letter from the Listing Qualifications Department of the Nasdaq Stock Market (“Nasdaq”) notifying us that, based on our stockholders’ equity of $332,000 as of September 30, 2023, as reported in our Quarterly Report on Form 10-Q for the quarterly period ended September 30, 2023, we were no longer in compliance with the minimum stockholders’ equity requirement for continued listing on the Nasdaq Capital Market under Nasdaq Listing Rule 5550(b)(1), which requires listed companies to maintain stockholders’ equity of at least $2.5 million. We had until December 29, 2023 to provide Nasdaq with a specific plan to achieve and sustain compliance with the foregoing listing requirement, which plan was initially submitted on December 22, 2023. Nasdaq subsequently requested that we submit a supplemental plan with greater detail, which we submitted to Nasdaq on January 22, 2024 (the “January 2024 Nasdaq Letter”). Specifically, we disclosed to Nasdaq, among other things, in the January 2024 Nasdaq Letter certain projections demonstrating how we intend to regain compliance with the stockholders’ equity requirement through, among other things, receipt of $7 million in gross proceeds in this offering and conversion of our outstanding preferred stock. Upon conversion of these shares of preferred stock into shares of our common stock, these shares will be reclassified from mezzanine equity to stockholders equity. If our plan to regain compliance is accepted, Nasdaq may grant an extension of up to 180 calendar days from the date of the letter for us to evidence compliance. If our plan to regain compliance is not accepted, if Nasdaq does not grant an extension and we do not regain compliance within the requisite time period, if our plan to regain compliance is accepted but we fail to meet any stated projections of such plan, or if we fail to satisfy another Nasdaq requirement for continued listing, Nasdaq could provide notice that our securities will become subject to delisting.

Impact of Coronavirus (COVID-19) on Our Operations

In December 2019, a novel strain of coronavirus was reported and in 2020 the World Health Organization declared COVID-19, the disease caused by the novel coronavirus, a pandemic, and the United States as well as most other countries declared a national emergency with respect to the coronavirus outbreak. This outbreak severely impacted global economic activity, and many countries and many states in the United States reacted to the outbreak by instituting quarantines, mandating business and school closures and restricting travel. These mandated business closures included dental office closures in Europe and the United States for all but emergency procedures. As these quarantines and restrictions began to be lifted in 2021 and 2022, operations began to return to pre-pandemic levels and although there are signs of recovery from the impact of COVID-19 both domestically and internationally, no assurance can be provided that our sales will return to normal levels during 2023 or at any time thereafter. See the “Risk Factors” section of this prospectus for additional information regarding the potential impact of the COVID-19 pandemic on our business, results of operations and financial condition.

Critical Accounting Policies

The preparation of consolidated financial statements and related disclosures in conformity with generally accepted accounting principles in the United States (“GAAP”) requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes. The following is a summary of those accounting policies that we believe are necessary to understand and evaluate our reported financial results.

Revenue Recognition. Revenue for sales of products and services is derived from contracts with customers. The products and services promised in customer contracts include delivery of laser systems, imaging systems, and consumables as well as certain ancillary services such as product training and support for extended warranties.

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Contracts with each customer generally state the terms of the sale, including the description, quantity and price of each product or service. Payment terms are stated in the contract and vary according to the arrangement. Because the customer typically agrees to a stated rate and price in the contract that does not vary over the life of the contract, our contracts do not contain variable consideration. We establish a provision for estimated warranty expense. For further information on warranty, see the discussion under “Warranty Cost” below.

At contract inception, we assess the products and services promised in our contracts with customers. We then identify performance obligations to transfer distinct products or services to the customers. In order to identify performance obligations, we consider all of the products or services promised in the contract regardless of whether they are explicitly stated or are implied by customary business practices.

Revenue from products and services transferred to customers at a single point in time accounted for 88% and 88% of net revenue for the years ended December 31, 2022 and 2021, respectively. Revenue from products and services transferred to customers at a single point in time accounted for 87% and 89% of net revenue for the three and nine months ended September 30, 2023, respectively, and 83% and 87% of net revenue for the three and nine months ended September 30, 2022, respectively. The majority of the revenue recognized at a point in time is for the sale of laser systems, imaging systems, and consumables. Revenue from these contracts is recognized when the customer is able to direct the use of and obtain substantially all of the benefits from the product which generally coincides with title transfer during the shipping process.

Revenue from services transferred to customers over time accounted for 12% and 12%, of net revenue for the years ended December 31, 2022 and 2021, respectively. Revenue from services transferred to customers over time accounted for 13% and 11% of net revenue for the three and nine months ended September 30, 2023, respectively, and 17% and 13% of net revenue for the three and nine months ended September 30, 2022, respectively. The majority of our revenue that is recognized over time relates to training and extended warranties.

The transaction price for a contract is allocated to each distinct performance obligation and recognized as revenue when, or as, each performance obligation is satisfied. For contracts with multiple performance obligations, we allocate the contract’s transaction price to each performance obligation using the best estimate of the standalone selling price of each distinct good or service in a contract. The primary method used to estimate standalone selling price is the observable price when the good or service is sold separately in similar circumstances and to similar customers.

Revenue is recorded for extended warranties over time as the customer benefits from the warranty coverage. This revenue will be recognized equally throughout the contract period as the customer receives benefits from our promise to provide such services. Revenue is recorded for product training as the customer attends a training program or upon the expiration of the obligation.

We also have contracts that include both the product sales and product training as performance obligations. In those cases, we record revenue for product sales at the point in time when the product has been shipped. The customer obtains control of the product when it is shipped, as all shipments are made FOB shipping point, and after the customer selects its shipping method and pays all shipping costs and insurance. We have concluded that control is transferred to the customer upon shipment.

We perform our obligations under a contract with a customer by transferring products and/or services in exchange for consideration from the customer. We invoice our customers as soon as control of an asset is transferred and a receivable due to us is established. We recognize a contract liability when a customer prepays for goods and/or services and we have not transferred control of the goods and/or services.

Accounts receivable are stated at estimated net realizable value. The allowance for doubtful accounts is based on an analysis of customer accounts and our historical experience with accounts receivable write-offs.

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Accounting for Stock-Based Payments. Stock-based compensation expense is estimated at the grant date of the award, is based on the fair value of the award and is recognized ratably over the requisite service period of the award. For restricted stock units we estimate the fair value of the award based on the number of awards and the fair value of our common stock on the grant date and apply an estimated forfeiture rate. For stock options, we estimate the fair value of the option award using the Black-Scholes option pricing model. This option-pricing model requires us to make several assumptions regarding the key variables used to calculate the fair value of its stock options. The risk-free interest rate used is based on the U.S. Treasury yield curve in effect for the expected lives of the options at their grant dates. Since July 1, 2005, we have used a dividend yield of zero, as we do not intend to pay cash dividends on our common stock in the foreseeable future. The most critical assumptions used in calculating the fair value of stock options are the expected life of the option and the expected volatility of our common stock. The expected life is calculated in accordance with the simplified method, whereby for service-based awards, the expected life is calculated as a midpoint between the vesting date and expiration date. We use the simplified method, as there is not a sufficient history of share option exercises. We believe the historic volatility of our common stock is a reliable indicator of future volatility, and accordingly, a stock volatility factor based on the historical volatility of our common stock over a lookback period of the expected life is used in approximating the estimated volatility of new stock options. Compensation expense is recognized using the straight-line method for all service-based employee awards and graded amortization for all performance-based awards. Compensation expense is recognized only for those options expected to vest, with forfeitures estimated at the date of grant based on historical experience and future expectations. Forfeitures are estimated at the time of the grant and revised in subsequent periods as actual forfeitures differ from those estimates.

Valuation of Inventory. Inventory is valued at the lower of cost or net realizable value, with cost determined using the first-in, first-out method. We periodically evaluate the carrying value of inventory and maintain an allowance for excess and obsolete inventory to adjust the carrying value as necessary to the lower of cost or net realizable value. We evaluate quantities on hand, physical condition, and technical functionality, as these characteristics may be impacted by anticipated customer demand for current products and new product introductions. Unfavorable changes in estimates of excess and obsolete inventory would result in an increase in cost of revenue and a decrease in gross profit.

Valuation of Long-Lived Assets. Property, plant, and equipment and certain intangibles with finite lives are amortized over their estimated useful lives. Useful lives are based on our estimate of the period that the assets will generate revenue or otherwise productively support our business goals. We monitor events and changes in circumstances that could indicate that the carrying balances of long-lived assets may exceed the undiscounted expected future cash flows from those assets. If such a condition were to exist, we would determine if an impairment loss should be recognized by comparing the carrying amount of the assets to their fair value.

Valuation of Goodwill and Other Intangible Assets. Goodwill and other intangible assets with indefinite lives are not subject to amortization but are evaluated for impairment annually or whenever events or changes in circumstances indicate that the asset might be impaired. We conducted our annual impairment analysis of our goodwill as of September 30, 2022 and concluded there had been no impairment in goodwill. We closely monitor our stock price and market capitalization and perform such analysis when events or circumstances indicate that there may have been a change to the carrying value of those assets.

Warranty Cost. We provide warranties against defects in materials and workmanship of our laser systems for specified periods of time. For the years ended December 31, 2022 and 2021, domestic sales of our Waterlase laser systems were covered by our warranty for a period of up to one year and diode systems were covered by our warranty for a period of up to two years from the date of sale by us or the distributor to the end-user. Laser systems sold internationally during the same periods were covered by our warranty for a period of up to 24 months from the date of sale to the international distributor. Estimated warranty expenses are recorded as an accrued liability with a corresponding provision to cost of revenue. This estimate is recognized concurrent with the recognition of revenue on the sale to the distributor or end-user. Warranty expenses expected to be incurred after one year from the time of sale to the distributor are classified as a long-term warranty accrual. Our overall

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accrual is based on our historical experience and our expectation of future conditions, taking into consideration the location and type of customer and the type of laser, which directly correlate to the materials and components under warranty, the duration of the warranty period, and the logistical costs to service the warranty. Additional factors that may impact our warranty accrual include changes in the quality of materials, leadership and training of the production and services departments, knowledge of the lasers and workmanship, training of customers, and adherence to the warranty policies. Additionally, an increase in warranty claims or in the costs associated with servicing those claims would likely result in an increase in the accrual and a decrease in gross profit. We offer extended warranties on certain imaging products. However, all imaging products are initially covered by the manufacturer’s warranties.

Recent Accounting Pronouncements

For a description of recently issued and adopted accounting pronouncements, including the respective dates of adoption and expected effects on our results of operations and financial condition, please refer to Note 2 —Summary of Significant Accounting Policies to the audited financial statements for the years ended December 31, 2022 and 2021 which is included in this prospectus.

Fair Value of Financial Instruments

Our financial instruments, consisting of cash and cash equivalents, accounts receivable, accounts payable, and accrued liabilities, approximate fair value because of the liquid or short-term nature of these items.

Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants in the principal market (or, if none exists, the most advantageous market) for the specific asset or liability at the measurement date (referred to as the “exit price”). The fair value is based on assumptions that market participants would use, including a consideration of non-performance risk. Under the accounting guidance for value hierarchy, there are three levels of measurement inputs. Level 1 inputs are quoted prices in active markets for identical assets or liabilities. Level 2 inputs are observable, either directly or indirectly. Level 3 inputs are unobservable due to little or no corroborating market data.

Results of Operations

Nine Months Ended September 30, 2023 and 2022

The following table sets forth certain data from our unaudited operating results, expressed in thousands and as percentages of net revenue:

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Comparison of Results of Operations

Three Months Ended September 30, 2023 Compared with Three Months Ended September 30, 2022

Net Revenue: The following table summarizes our unaudited net revenue by category, including each category’s percentage of our total revenue, for the three months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change in each revenue category (dollars in thousands):

The following table summarizes our unaudited net revenue by geographic location based on the location of customers for the three months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change in each geographic revenue category (dollars in thousands):

Typically, we experience fluctuations in revenue from quarter to quarter due to seasonality. Revenue in the first quarter typically is lower than average, and revenue in the fourth quarter typically is higher than average, due to the buying patterns of dental practitioners. We believe that this trend exists because a significant number of dentists purchase their capital equipment towards the end of the calendar year in order to maximize their practice earnings while seeking to minimize their taxes. They often use certain tax incentives, such as accelerated depreciation methods for purchasing capital equipment, as part of their year-end tax planning. In addition, revenue in the third quarter may be affected by vacation patterns which can cause revenue to be flat or lower than

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in the second quarter of the year. Our historical seasonal fluctuations may also be impacted by sales promotions used by large dental distributors that encourage end-of-quarter and end-of-year buying in our industry.

Net revenue during the three months ended September 30, 2023 decreased by $1.1 million, or 9% as compared to the same period in 2022 primarily due to a decrease in laser systems sales in the U.S. from the impact of the current macro-economic environment causing extended sales cycles, which includes increased interest rates, and from lower product training revenue recognized during the three months ended September 30, 2023 compared to the same period in 2022. The decrease was partially offset by an increase in consumables and other revenue from improved utilization of installed laser systems. Net revenue was $10.9 million during the three months ended September 30, 2023 compared to $12.0 million for the same period in 2022.

Cost of Revenue and Gross Profit: The following table summarizes our unaudited cost of revenue and gross profit for the three months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change (dollars in thousands):

Gross profit as a percentage of net revenue typically fluctuates with product and regional mix, selling prices, product costs and revenue levels. Gross profit for the three months ended September 30, 2023, was $3.7 million, or 34% of net revenue, an increase of approximately $1.3 million, or 53%, as compared with gross profit of $2.4 million, or 20% of net revenue, for the same period in 2022. The increase of 14% in gross profit as a percentage of net revenue when compared to the same period in 2022 reflects the improvement from supply chain issues that resulted in a $1.7 million charge to inventory reserves and warranty expenses during the three months ended September 30, 2022 compared to the same period in 2023, along with the impact of the favorable mix from higher margin consumables sales during the three months ended September 30, 2023 and various other cost savings initiatives implemented late in the second quarter of 2023. This improvement was partially offset by lower product training revenue recognized during the three months ended September 30, 2023 compared to the same period in 2022.

Operating Expenses: The following table summarizes our unaudited operating expenses (including as a percentage of net revenue) for the three months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change (dollars in thousands):

Sales and Marketing Expense. Sales and marketing expenses during the three months ended September 30, 2023 decreased by $1.6 million, or 32%, as compared to the same period in 2022. This decrease of $1.6 million is primarily due to a $1.0 million decrease in compensation expense during the three months ended September 30, 2023, as well as a decrease in commissions and bonus incentives for achieving lower sales targets, $0.3 million in decreased advertising spending, and $0.3 million in lower travel and tradeshow-related expenses.

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General and Administrative Expense. General and administrative expenses during the three months ended September 30, 2023 decreased by $0.4 million, or 14%, compared to the same period in 2022. This decrease of $0.4 million is primarily due to a $0.6 million decrease in compensation and bonus incentives from the impact of our cost savings initiatives implemented during the latter part of the second quarter of 2023 and from achieving lower sales targets, partially offset by a $0.2 million increase in expenses of our special shareholder meeting held during the third quarter of 2023 to obtain approval for our reverse stock split.

Engineering and Development Expense. Engineering and development expenses during the three months ended September 30, 2023 decreased by $0.6 million, or 31%, compared to the same period in 2022. This decrease of $0.6 million is primarily from the impact of our cost savings initiatives implemented during the latter part of the second quarter of 2023, as well as fewer engineering projects for 2023 as compared to 2022.

Non-Operating Loss

Loss on Foreign Currency Transactions. We realized an approximately $0.3 million loss on foreign currency transactions during the three months ended September 30, 2023 and 2022, respectively, primarily due to exchange rate fluctuations between the U.S. dollar and Euro, as well as other foreign currencies.

Interest Expense, Net. Interest expense was $0.6 million during the three months ended September 30, 2023 compared to $0.4 million for the same period in 2022, an increase of 41%. This increase was due to the rise in interest rates on our term loan.

Income Tax Provision. We use a discrete year-to-date method in calculating quarterly provision for income taxes. Our provision for income taxes for the three months ended September 30, 2023 was consistent with the same period in 2022. For additional information regarding income taxes, see Note 13 – Income Taxes to notes to financial statement included in this prospectus.

Net Loss. For the reasons stated above, our net loss totaled approximately $4.6 million for the three months ended September 30, 2023 compared to a net loss of $8.4 million for the three months ended September 30, 2022.

Nine Months Ended September 30, 2023 Compared with Nine Months Ended September 30, 2022

Net Revenue: The following table summarizes our unaudited net revenue by category, including each category’s percentage of our total revenue, for the nine months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change in each revenue category (dollars in thousands):

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The following table summarizes our unaudited net revenue by geographic location based on the location of customers for the nine months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change in each geographic revenue category (dollars in thousands):

Net revenue during the nine months ended September 30, 2023 increased by $1.3 million, or 4% as compared to the same period in 2022, primarily due to an increase in worldwide consumables and other revenue from improved utilization of installed laser systems. This increase was partially offset by a decrease in product training revenue during the nine months ended September 30, 2023 compared to the same period in 2022. Net revenue was $35.7 million during the nine months ended September 30, 2023 compared to $34.4 million for the same period in 2022.

Cost of Revenue and Gross Profit: The following table summarizes our unaudited cost of revenue and gross profit for the nine months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change (dollars in thousands):

Gross profit as a percentage of net revenue typically fluctuates with product and regional mix, selling prices, product costs and revenue levels. Gross profit for the nine months ended September 30, 2023, was $13.2 million, or 37% of net revenue, an increase of approximately $0.9 million, or 7%, as compared with gross profit of $12.3 million, or 36% of net revenue, for the same period in 2022. The increase of 1% in gross profit as a percentage of net revenue reflects the improvement from supply chain issues that resulted in a $1.7 million charge to inventory during the nine months ended September 30, 2022 compared to the same period in 2023. This inventory charge was driven by the supply chain issues that required us to change to new suppliers along with end of life designation for certain products and components, which resulted in higher inventory reserves and warranty expenses. The improvement is also due to the impact of the favorable mix from higher margin consumables sales during the nine months ended September 30, 2023. This improvement was partially offset by the carry-over of the supply chain issues and related warranty expenses to the first three months of 2023, as well as lower product training revenue recognized during the three months ended September 30, 2023 compared to the same period in 2022.

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Operating Expenses: The following table summarizes our unaudited operating expenses (including as a percentage of net revenue) for the nine months ended September 30, 2023 and 2022, as well as the amount of change and percentage of change (dollars in thousands):

Sales and Marketing Expense. Sales and marketing expenses during the nine months ended September 30, 2023 decreased by $1.0 million, or 7%, as compared to the same period in 2022. This decrease of $1.0 million is primarily due to $1.4 million in lower compensation expense during the nine months ended September 30, 2023 from a decrease in commissions and bonus incentives for achieving lower sales targets, $0.6 million in decreased advertising spending, and $0.2 million in lower travel and tradeshow-related expenses. These decreases were partially offset by $1.2 million in recognition of depreciation expense for equipment used in sales and marketing for demos, training and educational purposes, of which $0.8 million was non-recurring.

General and Administrative Expense. General and administrative expenses during the nine months ended September 30, 2023 decreased by $1.3 million, or 15%, compared to the same period in 2022. This decrease of $1.3 million is primarily due to an $0.8 million decrease in legal and consulting spending and a $0.5 million decrease in compensation and bonus incentives from the impact of our cost savings initiatives implemented during the latter part of the second quarter of 2023 and from achieving lower sales targets.

Engineering and Development Expense. Engineering and development expenses during the nine months ended September 30, 2023 decreased by $0.8 million, or 16%, compared to the same period in 2022. This decrease is primarily from the impact of our cost savings initiatives implemented during the latter part of the second quarter of 2023, as well as fewer engineering projects for 2023 as compared to 2022.

Non-Operating Loss

Loss on Foreign Currency Transactions. We realized an approximately $0.5 million loss on foreign currency transactions during the nine months ended September 30, 2023 compared to an approximately $0.6 million loss on foreign currency transactions during the nine months ended September 30, 2022, primarily due to exchange rate fluctuations between the U.S. dollar and Euro, as well as other foreign currencies.

Interest Expense, Net. Interest expense was $1.8 million during the nine months ended September 30, 2023 compared to $1.3 million for the same period in 2022, an increase of 39%. This increase was due to the rise in interest rates on our term loan.

Other (Income) Expense, Net. Other Expenses during the nine months ended September 30, 2023 was $0.1 million and relates to issuance costs from the September 2023 public offering that were allocated to the Series J warrants and from the May 2023 public offering that were allocated to the Series H warrants and immediately expensed due to the liability classification of the warrants. These expenses were partially offset by gains recorded on the revaluation of these warrants during the period.

Income Tax Provision. We use a discrete year-to-date method in calculating quarterly provision for income taxes. Our provision for income taxes for the nine months ended September 30, 2023 was consistent with the same period in 2022. For additional information regarding income taxes, see Note 13 — Income Taxes to notes to financial statement included in this prospectus.

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Net Loss. For the reasons stated above, our net loss totaled approximately $15.3 million for the nine months ended September 30, 2023 compared to a net loss of $18.8 million for the nine months ended September 30, 2022.

Non-GAAP Disclosure

In addition to the financial information prepared in conformity with GAAP, we provide certain historical non-GAAP financial information. Management believes that these non-GAAP financial measures assist investors in making comparisons of period-to-period operating results and that, in some respects, are indicative of our ongoing core performance.

Management believes that the presentation of this non-GAAP financial information provides investors with greater transparency and facilitates comparison of operating results across a broad spectrum of companies with varying capital structures, compensation strategies, derivative instruments, and amortization methods, which provides a more complete understanding of our financial performance, competitive position, and prospects for the future. However, the non-GAAP financial measures presented in this prospectus have certain limitations in that they do not reflect all of the costs associated with the operations of our business as determined in accordance with GAAP. Therefore, investors should consider non-GAAP financial measures in addition to, and not as a substitute for, or as superior to, measures of financial performance prepared in accordance with GAAP. Further, the non-GAAP financial measures presented by us may be different from similarly named non-GAAP financial measures used by other companies.

Adjusted EBITDA

Management uses Adjusted EBITDA in its evaluation of our core results of operations and trends between fiscal periods and believes that these measures are important components of its internal performance measurement process. Adjusted EBITDA is defined as net loss before interest, taxes, depreciation, stock-based and other non-cash compensation, severance expense, change in allowance for doubtful accounts, increase in inventory reserves, and other (income) expense, net. Management uses adjusted EBITDA in its evaluation of our core results of operations and trends between fiscal periods and believes that these measures are important components of its internal performance measurement process. Therefore, investors should consider non-GAAP financial measures in addition to, and not as a substitute for, or as superior to, measures of financial performance prepared in accordance with GAAP. Further, the non-GAAP financial measures presented by us may be different from similarly named non-GAAP financial measures used by other companies.

The following table contains a reconciliation of non-GAAP Adjusted EBITDA to GAAP net loss attributable to common stockholders (in thousands):

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