SANTA CLARA, Calif., Feb 23, 2005 /PRNewswire-FirstCall via COMTEX/ -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign®, a proprietary method of straightening teeth without wires and brackets, announced today that it will present at the Wells Fargo Securities 2005 Healthcare Conference being held at The St. Regis Hotel in New York City from March 1 - 2, 2005. Eldon Bullington, Align's chief financial officer, will present on Wednesday, March 2, 2005 at 11:15 am EST/8:15 am PST. The presentation will be webcast live and available for replay on the Investor Relations/Presentations page of the Company's website, which can be accessed via the following link: http://www.aligntech.com/generalapp/us/en/corporate/investor_frameset.jsp. An archived replay will remain on the web site for one month.

About Align Technology, Inc.

Align Technology designs, manufactures and markets Invisalign, a proprietary new 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 Contacts        Press Contacts
     Barbara Domingo                    Shannon Henderson
     Align Technology, Inc.             Ethos Communications
     408-470-1000                       678-417-1767
     bdomingo@aligntech.com             shannon@ethoscommunication.com

SOURCE Align Technology, Inc.

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