SANTA CLARA, Calif., Jan 04, 2006 /PRNewswire-FirstCall via COMTEX News Network/ -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign(R), a proprietary method of straightening teeth without wires and brackets, today announced plans to release its fourth quarter and fiscal year 2005 financial results before the market opens on January 25, 2006. The release will be available on the Investor Relations section of the company's web site at investor.aligntech.com.

On Wednesday, January 25, 2006 at 10:00 a.m. EST (7:00 a.m. PST), Thomas M. Prescott, President and Chief Executive Officer, and Eldon M. Bullington, Chief Financial Officer, will host a conference call and web cast to review fourth quarter and fiscal year 2005 financial results.

To access the web cast please visit the Investor Relations section of Align Technology's website at investor.aligntech.com.

To access the conference call, please dial 201-689-8341 approximately fifteen minutes prior to the start of the call. If you are unable to listen to the call, an archived web cast will be available beginning approximately one hour after the call's conclusion and will remain available through 5:30 p.m. EDT on January 24, 2007. Additionally, a telephonic replay of the call can be accessed by dialing 877-660-6853 with account number 292 followed by # and conference number 151235 followed by #. The replay may be accessed from international locations by dialing 201-612-7415 and using the same account and conference numbers referenced above. The telephonic replay will be available through 5:30 p.m. EDT on January 31, 2006.

About Align Technology, Inc.

Align Technology designs, manufactures and markets Invisalign, a propriety method for treatment 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-INVISABLE.

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

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

SOURCE Align Technology, Inc.

investors, Barbara Domingo of Align Technology, Inc., +1-408-470-1000, or
investorinfo@aligntech.com; or media, Shannon Henderson of Ethos Communications,
Inc., +1-678-417-1767, or shannon@ethoscommunication.com

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