Affiliation: | a Assistant Professor, Department of Prosthetic Dentistry, College of Dentistry, Cukurova University, Balcali, Adana, Turkey b Assistant Professor, Department of Prosthetic Dentistry, College of Dentistry, Cukurova University, Balcali, Adana, Turkey c Assistant Professor, Department of Prosthetic Dentistry, College of Dentistry, Ataturk University, Erzurum, Turkey d Professor, Division of Restorative and Prosthetic Dentistry, College of Dentistry and Director of the Graduate Program in Dental Materials Science, The Ohio State University, Columbus, Ohio |