1. Department of Rehabilitative and Reconstructive Dentistry; University of Louisville School of Dentistry; Louisville KY
2. Division of Maxillofacial Prosthetics, Department of Prosthodontics & Digital Technology; Stony Brook University School of Dental Medicine; Stony Brook NY
3. Department of Prosthodontics; University of Tennessee Health Science Center College of Dentistry; Memphis TN
4. Department of Prosthodontics; New York University College of Dentistry; New York NY