Dr. Avishai Sadan is professor and chairman, Department of Comprehensive Care, Case Western Reserve University School of Dental Medicine, Cleveland, Ohio. Dr. Sadan is a graduate of Hebrew University Hadassah School of Dental Medicine in Jerusalem, Israel. He has completed an internship in maxillofacial prosthodontics and oral medicine at this university also. Dr. Sadan received his training in prosthodontics from the LSU School of Dentistry. He has also completed a fellowship in prosthodontics emphasizing esthetic and implant dentistry at LSU. He is the editor-in-chief of Quintessence International, the editor-in-chief of Quintessence of Dental Technology (QDT), has served on the editorial boards other journals, and has lectured and published nationally and internationally on esthetic and implant dentistry. A member of several professional organizations including the American College of Prosthodontists, the Academy of Osseointegration, the European Academy of Esthetic Dentistry, OKU Dental Honor Society, and other organizations, he maintains an intramural practice limited to fixed and implant prosthodontics.