SANTA CLARA, Calif., July 19, 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 the change in time of its second quarter financial results conference call.

Align will now host a conference call and web cast to review second quarter 2006 financial results at 8:45 a.m. EDT (5:45 a.m. PDT) on Wednesday, July 26, 2006.

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 July 25, 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 199386 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 August 9, 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 800-INVISIBLE.

     Investor Relations Contact         Press Contact:
     Barbara Domingo                    Shannon Henderson
     Align Technology, Inc.             Ethos Communications, Inc.
     408-470-1000                       678-417-1767
     investorinfo@aligntech.com         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, for Align Technology, Inc.

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