Align Web Cast and Conference CallAlign Technology will host a conference call today, January 26, 2011 at 4:30 p.m. ET, 1:30 p.m. PT, to review its fourth quarter and fiscal 2010 results, discuss future operating trends and business outlook. The conference call will also be web cast live via the Internet. To access the web cast, go to the "Events & Presentations" section under Company Information on Align Technology's Investor Relations web site at http://investor.aligntech.com . To access the conference call, please dial 201-689-8261 approximately fifteen minutes prior to the start of the call. If you are unable to listen to the call, an archived web cast will be available beginning approximately one hour after the call's conclusion and will remain available for approximately 12 months. Additionally, a telephonic replay of the call can be accessed by dialing 877-660-6853 with account number 292 followed by # and conference number 364595 followed by #. The replay must be accessed from international locations by dialing 201-612-7415 and using the same account and conference numbers referenced above. The telephonic replay will be available through 5:30 p.m. ET on February 9, 2011. 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. Today, the Invisalign product family includes Invisalign, Invisalign Teen, Invisalign Assist, Invisalign Express, and Vivera Retainers. To learn more about Invisalign or to find an Invisalign trained doctor in your area, please visit www.invisalign.com. About non-GAAP Financial Measures To supplement our consolidated financial statements and our business outlook, we use the following non-GAAP financial measures: non-GAAP revenue, non-GAAP gross profit, non-GAAP operating expenses, non-GAAP profit from operations, non-GAAP net profit, and non-GAAP earnings per share, which exclude, as applicable, the impacts of litigation settlements, the release of previously deferred revenue of Invisalign Teen, royalties associated with the settlement with Ormco, the impacts of insurance settlements, restructuring and any related tax effects. The presentation of this financial information is not intended to be considered in isolation or as a substitute for, or superior to, the financial information prepared and presented in accordance with GAAP. For more information on these non-GAAP financial measures, please see the tables captioned "Business Outlook Summary" included at the end of this release.