Clinical Professor, Department of Oral and Maxillofacial Surgery, University of Pennsylvania, School of Dental Medicine, Philadelphia, PA; Private Practice, Brockton Oral and Maxillofacial Surgery Inc.; Attending, Department of Oral and Maxillofacial Surgery, Good Samaritan Medical Center, Brockton, MA; Visiting Professor, Department of Oral and Maxillofacial Surgery, Kaohsiung Medical University, School of Dentistry, Kaohsiung, Taiwan