SAN JOSE, Calif., April 14, 2011 (GLOBE NEWSWIRE) -- Align Technology, Inc. (Nasdaq: ALGN) today announced that on April 13, the Company received early termination of the waiting period under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended (HSR Act) with respect to its proposed acquisition of Cadent Holdings, Inc. The acquisition of Cadent, announced on March 29, remains subject to other customary closing conditions. The Company expects the transaction to close in late April or early May 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.

Forward Looking Statements

Statements about the expected timing and completion of the proposed Merger constitute forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. Readers are cautioned not to place undue reliance on these forward-looking statements, each of which is qualified in its entirety by reference to the following cautionary statements. Forward-looking statements speak only as of the date hereof and are based on current expectations and involve a number of assumptions, risks and uncertainties that could cause actual results to differ materially from those projected in the forward-looking statements. Matters discussed herein that are not historical or current facts deal with potential future circumstances and developments, in particular, whether and when the transactions contemplated by the Merger Agreement will be consummated. The discussion of such matters is qualified by the inherent risks and uncertainties surrounding future expectations generally, and also may materially differ from actual future experience involving any one or more of such matters. Such risks and uncertainties include: the timing of completion of the Merger; satisfaction of the various conditions to the closing of the Merger; and the risks that are described from time to time in Align's reports filed with the SEC, including its Annual Report on Form 10—K for the year ended December 31, 2010. This press release speaks only as of its date, and we disclaim any duty to update the information herein, except as required by law.

CONTACT: Investor Relations Contact

         Shirley Stacy

         Align Technology, Inc.

         (408) 470-1150

         sstacy@aligntech.com



         Press Contact

         Shannon Mangum Henderson

         Ethos Communication, Inc.

         (678) 261-7803

         align@ethoscommunication.com

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