SAN JOSE, Calif., Dec. 1, 2011 (GLOBE NEWSWIRE) -- Align Technology, Inc. (Nasdaq:ALGN - News) today announced that Sheila Tan, Align vice president of marketing and chief marketing officer (CMO), has left the Company. On an interim basis, Thomas M. Prescott, Align president and CEO, will oversee consumer marketing, and Tim Mack, Align senior vice president of business development and former CEO of Cadent, will oversee new product development and professional marketing.