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Press Release

Oct 06, 2005

Align Technology Improves Ease-of-Use and Efficiency With ClinCheck 2.0®

Align Technology Improves Ease-of-Use and Efficiency With ClinCheck 2.0<font size="-1"><sup>®</sup></font>PHILADELPHIA, Oct 06, 2005 /PRNewswire-FirstCall via COMTEX/ -- At the American Dental Association's 146th Annual Session in Philadelphia today, Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign®, a proprietary method of straightening teeth without wires and brackets, launched ClinCheck® 2.0, the latest version of Align's software application for Invisalign treatment. This latest version of ClinCheck is designed to improve usability and streamline ClinCheck review and approvals for Invisalign doctors.

The ClinCheck application provides a graphically rich environment for doctors to view a 3D computerized simulation of Invisalign treatment and the progression of tooth movement from the initial to the final position. Treatment planning tools allow the doctor to review and manipulate different aspects of the virtual model in order to make the best clinical decisions for the patient.

ClinCheck 2.0 was designed to provide greater ease-of-use and streamline treatment planning and ClinCheck review for doctors. New features include:

     -- Integrated Comments from Doctors and Align Technicians:  reduces
        ClinCheck evaluation time by providing a historical, color-code view
        of clinical directions and comments between the doctor and Align in
        one window.

     -- IPR Call Outs:  provides immediate access to the amount, position and
        treatment stage of Interproximal Reduction.

     -- Review Wizard:  provides a structured, organized review process by
        guiding doctors step-by-step through a series of clinical views of the
        virtual model, posing relevant questions for each view.

ClinCheck 2.0 also includes easier to navigate windows and menus, with one-click access to tools and more accurate and efficient click-and-ID tooth numbering.

"ClinCheck 2.0 represents the first set of significant upgrades that Align plans to introduce over the next eighteen months to make the treatment process more effective and efficient for doctors," said Thomas M. Prescott, Align President and Chief Executive Officer. "Along with Invisalign Express, this represents significant progress in our development of Invisalign 2.0."

Case setups created for the previous version of ClinCheck software can be viewed with ClinCheck 2.0, and previous versions of the software will still be supported. Certified doctors can find out more information about ClinCheck 2.0 and download the software at www.invisalign.com/clincheck.

About Align Technology, Inc.

Align Technology designs, manufactures and markets Invisalign, a proprietary method for treating malocclusion, or the misalignment of teeth. Invisalign corrects malocclusion using a series of clear, nearly invisible, removable appliances that gently move teeth to a desired final position. Because it does not rely on the use of metal or ceramic brackets and wires, Invisalign significantly reduces the aesthetic and other limitations associated with braces. Invisalign is appropriate for treating adults and older teens. Align Technology was founded in March 1997 and received FDA clearance to market Invisalign in 1998.

To learn more about Invisalign or to find a certified Invisalign doctor in your area, please visit www.invisalign.com or call 1-800-INVISIBLE.

This news release contains forward-looking statements, including statements by Mr. Prescott regarding Align's plan to introduce significant upgrades to ClinCheck over the next eighteen months to make treatment planning more effective and efficient for doctors. Forward-looking statements contained in this news release relating to expectations about future events or results are based upon information available to Align as of the date hereof. Readers are cautioned that these forward-looking statements are only predictions and are subject to risks, uncertainties and assumptions that are difficult to predict. As a result, actual results may differ materially and adversely from those expressed in any forward-looking statement. Factors that might cause such a difference include, but are not limited to, a delay in the implementation of the upgrades related to system integration and implementation issues and system security risks or as a result of the loss of key personnel. These and other risks are detailed from time to time in Align's periodic reports filed with the Securities and Exchange Commission, including, but not limited to, its Annual Report on Form 10-K for the fiscal year ended December 31, 2004, which was filed with the Securities and Exchange Commission on March 3, 2005, and its Quarterly Reports on Form 10-Q. Align undertakes no obligation to revise or update publicly any forward-looking statements for any reason.

Investor Relations Contact
     Barbara Domingo
     Align Technology, Inc.
     408-470-1000
     investorinfo@aligntech.com

     Press Contact
     Shannon Mangum Henderson
     Ethos Communication, Inc.
     678-417-1767
     shannon@ethoscommunication.com

SOURCE Align Technology

Investors, Barbara Domingo of Align Technology, Inc., +1-408-470-1000, or
investorinfo@aligntech.com; or Press, Shannon Mangum Henderson of Ethos
Communication, Inc., +1-678-417-1767, or shannon@ethoscommunication.com, for Align
Technology
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