SANTA CLARA, Calif., July 18, 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 a new manufacturing milestone; the Company recently shipped its twenty millionth Invisalign aligner.

Invisalign brand aligners are clear, removable plastic appliances used to straighten teeth in Invisalign treatment. Using proprietary, cutting-edge technology, Align manufactures a series of unique Invisalign aligners for each patient. Align is one of the largest manufacturers of mass-customized products in the world.

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 media, Shannon Mangum Henderson of Ethos
Communication, Inc., +1-678-417-1767, or shannon@ethoscommunication.com, for Align
Technology, Inc.

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