Santa Clara, Calif. -- February 6, 2001 -- Align Technology, Inc. (Nasdaq: ALGN) announced today that it has completed the latest phase of its professional training certifying more than 1,000 orthodontists to prescribe the Invisalignâ System, a proprietary method of straightening teeth without unsightly wires and brackets. Training workshops were held in 28 cities in the U.S. and in Canada.

“We were very pleased with the better than expected participation at our workshops. The number of orthodontists who were in attendance exceeded the amount we originally anticipated,” said Joe Breeland, Vice President of Sales for Align Technology.

The training, opened by Align Technology’s President Kelsey Wirth and hosted by Chief Clinical Officer, Dr. Ross Miller, certified orthodontists from coast to coast. Attendance at these workshops brings the total number of orthodontists certified to prescribe the Invisalign System since August 1999 to nearly 6,400, or more than 70% of the practicing orthodontists in the U.S. and Canada.

“This treatment process extends the practice of orthodontists by appealing to older teens and adults who want a beautiful smile but don’t want to have to wear braces to get there,” said Wirth.

Align Technology designs, manufactures and markets the Invisalign System, a proprietary new method for treating malocclusion, or the misalignment of teeth. The Invisalign System 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, the Invisalign System significantly reduces the aesthetic and other limitations associated with braces. The Invisalign System is appropriate for treating adults and older teens.

Align Technology was founded in March 1997 and received FDA clearance to market the Invisalign System in 1998.

This release may contain forward-looking statements based on Align Technology’s current expectations. These forward-looking statements involve risks and uncertainties. A number of important factors could cause actual results to differ materially from those in the forward-looking statements. These factors include Align Technology’s ability to achieve profitability, the adoption by orthodontists and consumers of the Invisalign System, Align Technology’s successful enforcement of its intellectual property and avoidance of infringement on third party patents, Align Technology’s ability to establish and maintain reliable, high-volume manufacturing capacity in the U.S. and internationally and Align Technology’s ability to manage its significant growth and retain its key personnel. These factors, as well as other factors that could cause actual results to differ materially, are discussed in more detail in Align Technology’s registration statement on Form S-1, as well as other reports and documents filed from time to time with the Securities and Exchange Commission.

Editorial Note: Please visit us at www.invisalign.com.

Contact:
Joanne Cole, 212-995-1415, jcolecom@aol.com
Marci Greenberg, 212-584-5016,mgreenberg@fenton.com
Lori Telson, 408-470-1190, lori@aligntech.com