Affiliation: | 1. Assistant Professor, Mayo Clinic College of Medicine and Chief Resident, Prosthodontics and Maxillofacial Prosthetics, Department of Dental Specialties, Division of Prosthetic and Esthetic Dentistry, Mayo Clinic, , Rochester, MN;2. Assistant Professor, Department of Dentistry, Faculty of Medicine and University Hospital in Hradec Králové, Charles University, , Prague, Czech Republic;3. Statistician, Department of Biostatistics, Mayo Clinic, , Rochester, MN;4. Professor, Mayo Clinic College of Medicine and Consultant, Department of Dental Specialties, Division of Prosthetic and Esthetic Dentistry, Mayo Clinic, , Rochester, MN;5. Professor, Mayo Clinic College of Medicine and Consultant, Chair, Department of Dental Specialties, Division of Prosthetic and Esthetic Dentistry, Mayo Clinic, , Rochester, MN |