Dr. Clark D. Colville is a 1993 graduate from the orthodontic program of the University of Texas Health Science Center at Houston and maintains private practices in Seguin and San Marcos, Texas. Dr. Colville is a Diplomate of the American Board of Orthodontics and is active in the American Association of Orthodontists and the Southwestern Society of Orthodontists. Dr. Colville has been a consultant with Align Technology, Inc. for the past 20 years, participating in clinical trials and as a member of their Global Scientific Advisor Board. He is a well-known speaker throughout the US and internationally on Invisalign branded clear aligner treatment. Dr. Colville is an associate clinical professor in the graduate orthodontic department at the University of Texas School of Dentistry at Houston where his primary responsibility is teaching clear aligner treatment to orthodontic residents.