Dr. Clark initiated and is a past president of the Academy of Microscope Enhanced Dentistry. The Academy is an international association formed to advance the science and practice of microendodontics, microperiodontics, microprosthodontics and microdentistry. Dr. Clark is a member of the ADA and an associate member of the AAE. He lectures and gives hands-on seminars internationally on a variety of topics related to microscope-enhanced dentistry. He is actively collaborating with leaders in clinical materials and instrument arenas to deliver more precise and more permanent dentistry.

Dr. Clark was the first to install ceiling tracks to facilitate the use of a microscope in more than one operatory. He has proposed and is publishing a completely new approach to diagnosis and treatment of cracked teeth, based on a new nomenclature and classification system for enamel and dentinal cracks observed at 16x. He provides video, still images and support to CRA (Clinical Research Associates) for their international presentations in regards to the role and impact of the clinical operating microscope in dentistry. He has developed a simple method utilizing digital video, mirrors and retraction to perform and record the microscopic portion of the comprehensive new patient examination.

Dr. Clark is a 1986 graduate of the University of Washington School of Dentistry. He maintains a microscope-centered restorative practice in Tacoma, Washington USA.