Gordon J Christensen1. 1. Dr. Christensen is the director, Practical Clinical Courses, and a cofounder and the chief executive officer, CR Foundation, Provo, Utah. He also is an adjunct professor, University of Utah, Salt Lake City. He is a diplomate of the American Board of Prosthodontics. Address correspondence to Dr. Christensen at CR Foundation, 3707 N. Canyon Road, Suite 3D, Provo, Utah 84604.