Align Technology Names David E. Collins to Board of Directors Santa Clara, Calif. – March 10, 2003 -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign®, a proprietary method of straightening teeth without wires and brackets, today announced that it has named retired Johnson & Johnson Vice Chairman and former Schering-Plough senior executive David E. Collins to its Board of Directors. Collins, a veteran of over three decades at the world’s leading medical device and technology companies, will assume the Board seat vacated by Zia Chishti, a co-founder of the Company, who has resigned from the Board to pursue other business interests.

Thomas M. Prescott, President and Chief Executive Officer of Align Technology said, “There are very few executives with the breadth of experience and business pedigree that David Collins brings to our Board. His command of corporate governance issues and proven record of success in leading the development of consumer brands will be an invaluable asset as we drive to expand the market for Invisalign. His record speaks for itself.”

Mr. Collins has served on a number of public and private company boards. His most recent operational role was with Kenilworth, NJ-based Schering-Plough Corporation from 1989 to 1994. At Schering-Plough, he created and served as President of a new consumer products division known as HealthCare Products, as well as serving as a member of the Schering-Plough Operations Committee, that company’s senior executive management group. Prior to Schering-Plough, Mr. Collins helped found New York-based venture capital firm Galen Partners.

Mr. Collins spent 27 years with Johnson & Johnson. From 1961 to 1978 he served in a number of roles in the law department, including Corporate Secretary and General Counsel. During this period Mr. Collins also became a member of the Board of Directors. In 1978, Mr. Collins transitioned into a series of executive management roles, including President of McNeil Laboratories, responsibility for several Latin American subsidiaries, leadership of the worldwide consumer products business and oversight of corporate public relations, investor relations, strategic planning and the government legislative liaison office. In 1982, Mr. Collins became a member of the Johnson & Johnson Executive Management Committee. He left Johnson & Johnson in 1988 as Vice Chairman of the Board of Directors.

Prescott also commented on the departure of Chishti from the Board, “Zia Chishti’s original vision for Invisalign is being turned into reality today. He, along with the other founders of the company, created something truly unique that has brought fundamental change to an industry. Our job is now to build the firm he helped to create into a great company with a truly global brand and to increase shareholder value.”

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.