Align Technology, Inc. Announces Date of its Fourth Quarter, Year-End 2002 Results and Conference Call Santa Clara, Calif. – February 3, 2003 -- Align Technology, Inc. (Nasdaq: ALGN), the inventor of Invisalign®, a proprietary method of straightening teeth without wires and brackets, today announced plans to release its fourth quarter, year-end 2002 financial results after the market closes on Thursday, February 13, 2003. The earnings release will be available at the investor relations section of the company's website at www.invisalign.com.

On Thursday, February 13, 2003 at 5:00 pm. ET (2:00 pm PT), Thomas Prescott, president and chief executive officer, and Eldon Bullington, chief financial officer, will host a conference call to discuss the fourth quarter and year-end 2002 financial results. A question and answer session will follow.

To listen to the call, please dial (415) 537-1825 approximately ten minutes prior to the start of the call and enter reservation number 21115866. If you are unable to listen to the call, a taped replay will also be available beginning approximately one hour after the call's conclusion and will remain available until 5:30 p.m. ET on February 21, 2003 and can be accessed by dialing (800) 633-8284 with reservation number 21115866. The replay may be accessed from international locations by dialing (402) 977-9140 using the same reservation number.

Additionally, the conference call will be webcast live over the Internet and can be accessed at Align's website at www.invisalign.com under the Corporate Communications/Investor Relations/Webcasts section. Please access the website several minutes prior to the start of the call to register, download, and install any necessary audio software. An archived webcast replay of the call will also be available at www.invisalign.com.

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, comfortable and 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 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.