received his DDS from the University of California San Francisco and his certificate in endodontics and did his MS on digital imaging from the University of Iowa. He is in full time private practice in Durango Colorado and was Associate Clinical Professor in the Dept. of Maxillofacial Imaging at USC and was Adjunct Assistant Professor at SLU. In his “prior life”, he wrote software for laboratory automation, instrument control and digital imaging. He lectures internationally about CBCT, clinical trial design, outcomes, conventional endodontic technique and non-instrumentation endodontics (NIE). As a Radiological Society of North America (RSNA) member for nearly 40 years, his background in medical radiology, mathematics and computer science allows him a perspective shared by very few clinicians. He has contributed to many sections and chapters in several textbooks and is the lead author for Quintessence’s Advanced CBCT for Endodontics: Technical Consideration.