Mark is a board certified periodontist who maintained a specialty practice in Lone Tree and Denver, CO. In addition to his periodontics training at the University of Texas Health Sciences Center at San Antonio, he completed an internship in oral and maxillofacial surgery and practiced for several years as a general dentist. He is a Clinical Assistant Professor in the Division of Periodontics at the University of Colorado School of Dental Medicine where he has served as a Course Director in both clinical and didactic courses. He has been involved with research efforts throughout his professional career and served as a Snoasis Clinical Advisor since the company's inception. Mark received his B.A. in Philosophy from the University of Texas at Austin and a M.S. from the University of Texas Health Sciences Center at San Antonio. He completed his D.D.S. degree at the University of Colorado School of Dental Medicine.