Affiliation: | 1. Graduate Prosthodontics Resident, Department of Biological and Material Sciences, Division of Prosthodontics, University of Michigan, Ann Arbor, Mich;2. Professor, Department of Biological and Material Sciences, Division of Prosthodontics, University of Michigan, Ann Arbor, Mich;3. Graduate Prosthodontics Resident, Department of Biological and Material Sciences, Division of Prosthodontics, University of Michigan, Ann Arbor, Mich |