SANTA CLARA, Calif., Jan 23, 2007 /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 the change in time of its fourth quarter and fiscal year 2006 financial results conference call.

Align will now host a conference call and web cast to review fourth quarter and fiscal year 2006 financial results at 10:00 a.m. EST (7:00 a.m. PST) on Tuesday, January 30, 2007.

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. EST on January 29, 2008. Additionally, a telephonic replay of the call can be accessed by dialing (877) 660-6853 with account number 292 followed by # and conference number 227475 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. EST on February 13, 2007.

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, please visit www.invisalign.com or call 1-800-INVISIBLE.

     Investor Relations Contact              Press Contact:
     Barbara Domingo                         Shannon Henderson
     Align Technology, Inc.                  Ethos Communications, Inc.
     (408) 470-1000                          (678) 540-9222
     investorinfo@aligntech.com              align@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., +1-678-540-9222, or align@ethoscommunication.com, for Align Technology, Inc.

http://www.invisalign.com/

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