Affiliation: | 1. Associate Professor, Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia;2. Associate Professor, Faculty of Dentistry, Jordan University of Science and Technology, Irbid, Jordan;3. Demonstrator, College of Dentistry, Prince Salman University, Riyadh Colleges of Dentistry and Pharmacy, Riyadh, Saudi Arabia;4. Professor, Department of Restorative Dentistry, Loma Linda University School of Dentistry, Loma Linda, Calif |