Exhibit 10.1

SECURITY AGREEMENT

     SECURITY AGREEMENT, dated as of February 24, 2010, between Biolase Technology, Inc., a Delaware corporation (the “Debtor”), and Henry Schein, Inc., a Delaware corporation (the “Secured Party”).

     WHEREAS, the Debtor and Secured Party have entered into that certain letter agreement, dated as of February 16, 2010 (the “Purchase Agreement”), pursuant to which Debtor has agreed to sell, and Secured Party has agreed to purchase, certain inventory of Debtor subject to the terms and conditions set forth in the Purchase Agreement; and

     WHEREAS, Secured Party has paid Debtor certain initial payments under the Purchase Agreement in respect of goods to be delivered by Debtor to Secured Party pursuant to the Purchase Agreement, but no such goods have been delivered as of the date hereof; and

     WHEREAS, it was a condition precedent to the Secured Party’s extension of credit to the Debtor under the Purchase Agreement that the Debtor execute and deliver to the Secured Party a security agreement in substantially the form hereof; and

     WHEREAS, the Debtor wishes to grant a security interest in favor of the Secured Party as herein provided;

     NOW, THEREFORE, in consideration of the promises contained herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

     1. Definitions. All capitalized terms used herein without definitions shall have the respective meanings provided therefor in the Purchase Agreement. The term “State,” as used herein, means the State of New York. All terms defined in the Uniform Commercial Code of the State and used herein shall have the same definitions herein as specified therein. However, if a term is defined in Article 9 of the Uniform Commercial Code of the State differently than in another Article of the Uniform Commercial Code of the State, the term has the meaning specified in Article 9. The term “Obligations,” as used herein, means all of the obligations and liabilities of the Debtor to the Secured Party, individually or collectively, whether direct or indirect, joint or several, absolute or contingent, due or to become due, now existing or hereafter arising in respect of the initial payment made by Secured Party to Debtor in respect of goods to be delivered by Debtor to Secured Party pursuant to the Purchase Agreement, and the term “Event of Default,” as used herein, means the failure of the Debtor to perform any of the Obligations.

     2. Grant of Security Interest. The Debtor hereby grants to the Secured Party, to secure the payment and performance in full of all of the Obligations, a security interest in and to all of Debtor’s now owned or hereafter acquired inventory (all of the same being hereinafter collectively called the “Collateral”).

     3. Authorization to File Financing Statements. The Debtor hereby irrevocably authorizes the Secured Party at any time and from time to time to file in any filing office in any Uniform Commercial Code jurisdiction any initial financing statements and amendments

thereto (a) in respect of the Collateral, and (b) provide any other information required by part 5 of Article 9 of the Uniform Commercial Code of the State, or such other jurisdiction, for the sufficiency or filing office acceptance of any financing statement or amendment, including whether the Debtor is an organization, the type of organization and any organizational identification number issued to the Debtor. The Debtor agrees to furnish any such information to the Secured Party promptly upon the Secured Party’s request.

     4. Other Actions as to Any and All Collateral. The Debtor further agrees, at the request and option of the Secured Party, to take any and all other actions the Secured Party may determine to be necessary or useful for the attachment, perfection and first priority of, and the ability of the Secured Party to enforce, the Secured Party’s security interest in any and all of the Collateral, including, without limitation, (a) executing, delivering and, where appropriate, filing financing statements and amendments relating thereto under the Uniform Commercial Code, to the extent, if any, that the Debtor’s signature thereon is required therefor, (b) causing the Secured Party’s name to be noted as secured party on any certificate of title for a titled good if such notation is a condition to attachment, perfection or priority of, or ability of the Secured Party to enforce, the Secured Party’s security interest in such Collateral, (c) complying with any provision of any statute, regulation or treaty of the United States as to any Collateral if compliance with such provision is a condition to attachment, perfection or priority of, or ability of the Secured Party to enforce, the Secured Party’s security interest in such Collateral, (d) obtaining governmental and other third party waivers, consents and approvals in form and substance satisfactory to Secured Party, including, without limitation, any consent of any licensor, lessor or other person obligated on Collateral and (e) taking all actions under any earlier versions of the Uniform Commercial Code or under any other law, as reasonably determined by the Secured Party to be applicable in any relevant Uniform Commercial Code or other jurisdiction, including any foreign jurisdiction.

     5. Representations and Warranties Concerning Debtor’s Legal Status. The Debtor represents and warrants to the Secured Party as follows: (a) the Debtor’s exact legal name is that indicated on the signature page hereof, (b) the Debtor is an organization of the type, and is organized in the jurisdiction set forth in the first paragraph of this Agreement, (c) the Debtor’s organizational identification number is that indicated on the signature page hereof and (d) the Debtor’s place of business as well as the Debtor’s mailing address is that indicated on the signature page hereof.

     6. Covenants Concerning Debtor’s Legal Status. The Debtor covenants with the Secured Party as follows: (a) without providing at least 30 days prior written notice to the Secured Party, the Debtor will not change its name, its place of business or, if more than one, chief executive office, or its mailing address or organizational identification number if it has one, (b) if the Debtor does not have an organizational identification number and later obtains one, the Debtor shall forthwith notify the Secured Party of such organizational identification number and (c) the Debtor will not change its type of organization, jurisdiction of organization or other legal structure.

     7. Representations and Warranties Concerning Collateral, etc. The Debtor further represents and warrants to the Secured Party as follows: (a) the Debtor is the owner of or has other rights in or power to transfer the Collateral, free from any right or claim or any person or

any adverse lien, security interest or other encumbrance, except for the security interest created by this Agreement and (b) none of the Collateral constitutes, or is the proceeds of, “farm products” as defined in Section 9-102(a)(34) of the Uniform Commercial Code of the State.

     8. Covenants Concerning Collateral, etc. The Debtor further covenants with the Secured Party as follows: (a) the Collateral, to the extent not delivered to the Secured Party pursuant to Section 4, will be kept at those locations listed on the signature page and the Debtor will not remove the Collateral from such locations (other than in connection with the sale of inventory in the ordinary conduct of Debtor’s business), without providing at least thirty days prior written notice to the Secured Party, (b) except for the security interest herein granted, the Debtor shall be the owner of or have other rights in the Collateral free from any right or claim of any other person, lien, security interest or other encumbrance, and the Debtor shall defend the same against all claims and demands of all persons at any time claiming the same or any interests therein adverse to the Secured Party, (c) the Debtor shall not pledge, mortgage or create, or suffer to exist any right of any person in or claim by any person to the Collateral, or any security interest, lien or encumbrance in the Collateral in favor of any person, other than the Secured Party, (d) the Debtor will keep the Collateral in good order and repair and will not use the same in violation of law or any policy of insurance thereon, (e) the Debtor will permit the Secured Party, or its designee, to inspect the Collateral at any reasonable time, wherever located, (f) the Debtor will pay promptly when due all taxes, assessments, governmental charges and levies upon the Collateral or incurred in connection with the use or operation of such Collateral or incurred in connection with this Agreement, (g) the Debtor will continue to operate, its business in compliance with all applicable provisions of the federal, state and local statutes and ordinances dealing with the control, shipment, storage or disposal of hazardous materials or substances and (h) the Debtor will not sell or otherwise dispose, or offer to sell or otherwise dispose, of the Collateral or any interest therein except for sales of inventory in the ordinary course of business.

     9. Insurance.

          9.1 Maintenance of Insurance. The Debtor will maintain with financially sound and reputable insurers insurance with respect to its properties and business against such casualties and contingencies as shall be in accordance with general practices of businesses engaged in similar activities in similar geographic areas. Such insurance shall be in such minimum amounts that the Debtor will not be deemed a co-insurer under applicable insurance laws, regulations and policies and otherwise shall be in such amounts, contain such terms, be in such forms and be for such periods as may be reasonably satisfactory to the Secured Party. In addition, all such insurance shall be payable to the Secured Party as loss payee under a “standard” or “New York” loss payee clause.

          9.2 Insurance Proceeds. The proceeds of any casualty insurance in respect of any casualty loss of any of the Collateral shall, subject to the rights, if any, of other parties with an interest having priority in the property covered thereby, (i) to the extent that the amount of such proceeds is less than $50,000, be disbursed to the Debtor for direct application by the Debtor solely to the repair or replacement of the Debtor’s property so damaged or destroyed, and (ii) in all other circumstances, be held by the Secured Party as cash collateral for the Obligations. The Secured Party may, at its sole option, disburse from time to time all or any part of such

proceeds so held as cash collateral, upon such terms and conditions as the Secured Party may reasonably prescribe, for direct application by the Debtor solely to the repair or replacement of the Debtor’s property so damaged or destroyed, or the Secured Party may apply all or any part of such proceeds to the Obligations.

          9.3 Continuation of Insurance. All policies of insurance shall provide for at least 30 days prior written cancellation notice to the Secured Party. In the event of failure by the Debtor to provide and maintain insurance as herein provided, the Secured Party may, at its option, provide such insurance and charge the amount thereof to the Debtor. The Debtor shall furnish the Secured Party with certificates of insurance and policies evidencing compliance with the foregoing insurance provision.

     10. Collateral Protection Expenses; Preservation of Collateral.

          10.1 Expenses Incurred by Secured Party. In the Secured Party’s discretion, if the Debtor fails to do so, the Secured Party may discharge taxes and other encumbrances at any time levied or placed on any of the Collateral, maintain any of the Collateral, make repairs thereto and pay any necessary insurance premiums. The Debtor agrees to reimburse the Secured Party on demand for all expenditures so made. The Secured Party shall have no obligation to the Debtor to make any such expenditures.

          10.2 Secured Party’s Obligations and Duties. The Secured Party’s sole duty with respect to the custody, safe keeping and physical preservation of the Collateral in its possession, if any, under Section 9-207 of the Uniform Commercial Code of the State or otherwise, shall be to deal with such Collateral in the same manner as the Secured Party deals with similar property for its own account.

     11. Securities. Regardless of the adequacy of Collateral or any other security for the Obligations, any deposits or other sums at any time credited by or due from the Secured Party to the Debtor may at any time be applied to or set off against any of the Obligations.

     12. Power of Attorney.

          12.1 Appointment and Powers of Secured Party. The Debtor hereby irrevocably constitutes and appoints the Secured Party and any officer or agent thereof, with full power of substitution, as its true and lawful attorneys-in-fact with full irrevocable power and authority in the place and stead of the Debtor or in the Secured Party’s own name, for the purpose of carrying out the terms of this Agreement, to take any and all appropriate action and to execute any and all documents and instruments that may be necessary or useful to accomplish the purposes of this Agreement and, without limiting the generality of the foregoing, hereby gives said attorneys the power and right, on behalf of the Debtor, without notice to or assent by the Debtor, to do the following:

               (a) upon the occurrence and during the continuance of a default by Debtor under the Purchase Agreement, generally to sell, transfer, pledge, make any agreement with respect to or otherwise dispose of or deal with any of the Collateral in such manner as is consistent with the Uniform Commercial Code of the State and as fully and completely as though the Secured Party were the absolute owner thereof for all purposes, and to do, at the Debtor’s

expense, at any time, or from time to time, all acts and things which the Secured Party deems necessary or useful to protect, preserve or realize upon the Collateral and the Secured Party’s security interest therein, in order to effect the intent of this Agreement, all at least as fully and effectively as the Debtor might do; and

               (b) to the extent that the Debtor’s authorization given in Section 3 is not sufficient, to file such financing statements with respect hereto, with or without the Debtor’s signature, or a photocopy of this Agreement in substitution for a financing statement, as the Secured Party may deem appropriate and to execute in the Debtor’s name such financing statements and amendments thereto and continuation statements which may require the Debtor’s signature.

          12.2 Ratification by Debtor. To the extent permitted by law, the Debtor hereby ratifies all that said attorneys shall lawfully do or cause to be done by virtue hereof. This power of attorney is a power coupled with an interest and is irrevocable.

          12.3 No Duty on Secured Party. The powers conferred on the Secured Party hereunder are solely to protect its interests in the Collateral and shall not impose any duty upon it to exercise any such powers. The Secured Party shall be accountable only for the amounts that it actually receives as a result of the exercise of such powers, and neither it nor any of its officers, directors, employees or agents shall be responsible to the Debtor for any act or failure to act, except for the Secured Party’s own gross negligence or willful misconduct.

     13. Rights and Remedies. If a default by Debtor shall have occurred and be continuing under the Purchase Agreement, the Secured Party, without any other notice to or demand upon the Debtor shall have in any jurisdiction in which enforcement hereof is sought, in addition to all other rights and remedies, the rights and remedies of a secured party under the Uniform Commercial Code of the State and any additional rights and remedies which may be provided to a secured party in any jurisdiction in which Collateral is located, including, without limitation, the right to take possession of the Collateral, and for that purpose the Secured Party may, so far as the Debtor can give authority therefor, enter upon any premises on which the Collateral may be situated and remove the same therefrom. The Secured Party may in its discretion require the Debtor to assemble all or any part of the Collateral at such location or locations within the jurisdiction(s) of the Debtor’s principal office(s) or at such other locations as the Secured Party may reasonably designate. In addition, the Debtor waives any and all rights that it may have to a judicial hearing in advance of the enforcement of any of the Secured Party’s rights and remedies hereunder, including, without limitation, its right following a default to take immediate possession of the Collateral and to exercise its rights and remedies with respect thereto.

     14. Standards for Exercising Rights and Remedies. To the extent that applicable law imposes duties on the Secured Party to exercise remedies in a commercially reasonable manner, the Debtor acknowledges and agrees that it is not commercially unreasonable for the Secured Party (a) to fail to incur expenses reasonably deemed significant by the Secured Party to prepare Collateral for disposition or otherwise to fail to complete raw material or work in process into finished goods or other finished products for disposition, (b) to fail to obtain third party consents for access to Collateral to be disposed of, or to obtain or, if not required by other

law, to fail to obtain governmental or third party consents for the collection or disposition of Collateral to be collected or disposed of, (c) to fail to remove liens or encumbrances on or any adverse claims against Collateral, (d) to exercise collection remedies against persons obligated on Collateral directly or through the use of collection agencies and other collection specialists, (e) to advertise dispositions of Collateral through publications or media of general circulation, whether or not the Collateral is of a specialized nature, (f) to contact other persons, whether or not in the same business as the Debtor, for expressions of interest in acquiring all or any portion of the Collateral, (g) to hire one or more professional auctioneers to assist in the disposition of Collateral, whether or not the collateral is of a specialized nature, (h) to dispose of Collateral by utilizing Internet sites that provide for the auction of assets of the types included in the Collateral or that have the reasonable capability of doing so, or that match buyers and sellers of assets, (i) to dispose of assets in wholesale rather than retail markets, or (j) to disclaim disposition warranties. The Debtor acknowledges that the purpose of this Section 14 is to provide non-exhaustive indications of what actions or omissions by the Secured Party would fulfill the Secured Party’s duties under the Uniform Commercial Code or other law of the State or any other relevant jurisdiction in the Secured Party’s exercise of remedies against the Collateral and that other actions or omissions by the Secured Party shall not be deemed to fail to fulfill such duties solely on account of not being indicated in this Section 14. Without limitation upon the foregoing, nothing contained in this Section 14 shall be construed to grant any rights to the Debtor or to impose any duties on the Secured Party that would not have been granted or imposed by this Agreement or by applicable law in the absence of this Section 14.

     15. No Waiver by Secured Party, etc. The Secured Party shall not be deemed to have waived any of its rights or remedies in respect of the Obligations or the Collateral unless such waiver shall be in writing and signed by the Secured Party. No delay or omission on the part of the Secured Party in exercising any right or remedy shall operate as a waiver of such right or remedy or any other right or remedy. A waiver on any one occasion shall not be construed as a bar to or waiver of any right or remedy on any future occasion. All rights and remedies of the Secured Party with respect to the Obligations or the Collateral, whether evidenced hereby or by any other instrument or papers, shall be cumulative and may be exercised singularly, alternatively, successively or concurrently at such time or at such times as the Secured Party deems expedient.

     16. Suretyship Waivers by Debtor. The Debtor waives demand, notice, protest, notice of acceptance of this Agreement, credit extended, Collateral received or delivered or other action taken in reliance hereon and all other demands and notices of any description. With respect to both the Obligations and the Collateral, the Debtor assents to any extension or postponement of the time of payment or any other indulgence, to any substitution, exchange or release of or failure to perfect any security interest in any Collateral, to the addition or release of any party or person primarily or secondarily liable, to the acceptance of partial payment thereon and the settlement, compromising or adjusting of any thereof, all in such manner and at such time or times as the Secured Party may deem advisable. The Secured Party shall have no duty as to the collection or protection of the Collateral or any income therefrom, the preservation of rights against prior parties, or the preservation of any rights pertaining thereto beyond the safe custody thereof as set forth in Section 10.2. The Debtor further waives any and all other suretyship defenses.

     17. Marshalling. The Secured Party shall not be required to marshal any present or future collateral security (including but not limited to the Collateral) for, or other assurances of payment of, the Obligations or any of them or to resort to such collateral security or other assurances of payment in any particular order, and all of its rights and remedies hereunder and in respect of such collateral security and other assurances of payment shall be cumulative and in addition to all other rights and remedies, however existing or arising. To the extent that it lawfully may, the Debtor hereby agrees that it will not invoke any law relating to the marshalling of collateral which might cause delay in or impede the enforcement of the Secured Party’s rights and remedies under this Agreement or under any other instrument creating or evidencing any of the Obligations or under which any of the Obligations is outstanding or by which any of the Obligations is secured or payment thereof is otherwise assured, and, to the extent that it lawfully may, the Debtor hereby irrevocably waives the benefits of all such laws.

     18. Proceeds of Dispositions; Expenses. The Debtor shall pay to the Secured Party on demand any and all expenses, including reasonable attorneys’ fees and disbursements, incurred or paid by the Secured Party in protecting, preserving or enforcing the Secured Party’s rights and remedies under or in respect of any of the Obligations or any of the Collateral. After deducting all of said expenses, the residue of any proceeds of collection or sale or other disposition of the Collateral shall, to the extent actually received in cash, be applied to the payment of the Obligations in such order or preference as the Secured Party may determine proper allowance and provision being made for any Obligations not then due. Upon the final payment and satisfaction in full of all of the Obligations and after making any payments required by Sections 9-608(a)(1)(C) or 9-615(a)(3) of the Uniform Commercial Code of the State, any excess shall be returned to the Debtor. In the absence of final payment and satisfaction in full of all of the Obligations, the Debtor shall remain liable for any deficiency.

     19. Immediately upon satisfaction of the Obligations, the Secured Party shall authorize the Debtor, on behalf of the Secured Party and at Debtor’s expense, to execute and file termination statements in all jurisdictions in which financing statements were filed in respect of this Agreement, and shall take such other action or refrain from taking any other action as Debtor may reasonably request, and at Debtor’s sole expense, to effectuate the termination of this Agreement and the termination of perfection of any security interest granted in and to the Collateral.

     20. Governing Law; Consent to Jurisdiction. THIS AGREEMENT IS INTENDED TO TAKE EFFECT AS A SEALED INSTRUMENT AND SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. The Debtor agrees that any action or claim arising out of, or any dispute in connection with, this Agreement, any rights, remedies, obligations, or duties hereunder, or the performance or enforcement hereof or thereof, may be brought in the courts of the State or any federal court sitting therein and consents to the non-exclusive jurisdiction of such court and to service of process in any such suit being made upon the Debtor by mail at the address set forth on the signature page hereto. The Debtor hereby waives any objection that it may now or hereafter have to the venue of any such suit or any such court or that such suit is brought in an inconvenient court.

     21. Waiver of Jury Trial. THE DEBTOR WAIVES ITS RIGHT TO A JURY TRIAL WITH RESPECT TO ANY ACTION OR CLAIM ARISING OUT OF ANY DISPUTE IN CONNECTION WITH THIS AGREEMENT, ANY RIGHTS, REMEDIES, OBLIGATIONS, OR DUTIES HEREUNDER, OR THE PERFORMANCE OR ENFORCEMENT HEREOF OR THEREOF. Except as prohibited by law, the Debtor waives any right which it may have to claim or recover in any litigation referred to in the preceding sentence any special, exemplary, punitive or consequential damages or any damages other than, or in addition to, actual damages. The Debtor (i) certifies that neither the Secured Party nor any representative, agent or attorney of the Secured Party has represented, expressly or otherwise, that the Secured Party would not, in the event of litigation, seek to enforce the foregoing waivers or other waivers contained in this Agreement, and (ii) acknowledges that, in entering into the Purchase Agreement, the Secured Party is relying upon, among other things, the waivers and certifications contained in this Section 21.

     22. Miscellaneous. The headings of each section of this Agreement are for convenience only and shall not define or limit the provisions thereof. This Agreement and all rights and obligations hereunder shall be binding upon the Debtor and its respective successors and assigns, and shall inure to the benefit of the Secured Party and its successors and assigns. If any term of this Agreement shall be held to be invalid, illegal or unenforceable, the validity of all other terms hereof shall in no way be affected thereby, and this Agreement shall be construed and be enforceable as if such invalid, illegal or unenforceable term had not been included herein. The Debtor acknowledges receipt of a copy of this Agreement.

     IN WITNESS WHEREOF, intending to be legally bound, the Debtor has caused this Agreement to be duly executed as of the date first above written.