SANTA CLARA, Calif., Sept. 22 /PRNewswire-FirstCall/ -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign®, a proprietary method of straightening teeth without wires and brackets, announced today that Thomas M. Prescott, President and CEO, is scheduled to speak at the UBS Global Life Science Conference on Wednesday, September 29, 2004 at 12:30 p.m. EDT/ 9:30 a.m. PDT.

A live web cast of the presentation will be available on September 29, 2004 at 12:30 p.m. EDT/9:30 a.m. PDT on Align's web site at www.invisalign.com in the Investor Relations/Presentations section. An archived replay will be available for one month.

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.

CONTACT: 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.

SOURCE Align Technology, Inc. 09/22/2004

CONTACT: 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.

Web site: http://www.invisalign.com