SANTA CLARA, Calif., May 18, 2005 /PRNewswire-FirstCall via COMTEX/ -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign(R), a proprietary method of straightening teeth without wires and brackets, today announced that it will host a live webcast of its annual shareholder meeting on Wednesday, May 25, 2005, beginning at 10:00 a.m. PDT/1:00 p.m. EDT.

The webcast will be listen-only and will be accessible and archived for replay through midnight on Wednesday, June 8, 2005 at http://investors.aligntech.com.

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.

Investor Relations Contact               Press Contact
     Barbara Domingo                         Shannon Mangum Henderson
     Align Technology, Inc.                  Ethos Communication, 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 press, Shannon Mangum Henderson of Ethos
Communication, Inc., +1-678-417-1767, or shannon@ethoscommunication.com, for Align
Technology

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