Align Technology Announces January 21st Availability of SmartTrack(TM) Invisalign(R) Aligner Material

SAN JOSE, CA--(Marketwire - Jan 18, 2013) -  Align Technology, Inc. (NASDAQ: ALGN) announced today that SmartTrack™, the next generation of Invisalign clear aligner material, will be available commercially on January 21, 2013. SmartTrack is a highly elastic, proprietary new aligner material that delivers gentle, more constant force to improve control of tooth movements with Invisalign clear aligner treatment. In October 2012 Align announced SmartTrack would become the new standard Invisalign aligner material for Invisalign clear aligner products in North America, Europe, and other international markets in the first quarter of 2013.

Compared to conventional aligner materials which relax and lose a substantial percent of energy in the initial days of aligner wear, SmartTrack maintains more constant force over the two weeks that a patient wears the aligners. The flexible SmartTrack material is designed to more precisely conform to tooth morphology, attachments, and interproximal spaces to improve control of tooth movement throughout treatment. The highly elastic SmartTrack material also makes it easier to insert and remove aligners and delivers improved patient comfort. A study* of more than 1,000 patients treated with Invisalign aligners made with SmartTrack shows statistically significant improvement in control of tooth movements such as rotations and extrusions compared to patients treated with aligners made with current Invisalign material.

More than 5,200 Invisalign providers in North America pre-registered for a series of SmartTrack "Ask the Expert" webinars taking place today. The webinars are hosted by John Morton, Align director of research and development, and Dr. Clark Colville, an orthodontist in Seguin, Texas and participant in the SmartTrack study. The archived webinar and more information on SmartTrack will be available at www.aligntechinstitute.com/SmartTrack starting January 21^st.

For more information on Invisalign innovation and Align Technology, please see Align's new corporate video profile at www.aligntech.com.

*Data on file with Align.

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 teens. Align Technology was founded in March 1997 and received FDA clearance to market Invisalign in 1998.The Invisalign product family includes Invisalign, Invisalign Teen, Invisalign Assist, Invisalign Express 10, Invisalign Express 5, Invisalign Lite, and Vivera Retainers. To learn more about Invisalign or to find an Invisalign trained doctor in your area, please visit www.invisalign.com.

Cadent Holdings, Inc. is a subsidiary of Align Technology and is a leading provider of 3D digital scanning solutions for orthodontics and dentistry. The Cadent family of products includes the iTero and iOC intra-oral scanning systems, OrthoCAD iCast and OrthoCAD iRecord. For additional information, please visit www.cadentinc.com.