Dr. Charles S. Greene graduated from University of Illinois at Chicago College of Dentistry in 1963. He has been involved for many years in clinical research and teaching in the area of temporomandibular disorders and orofacial pain. From 1965-1984 he worked in the College of Dentistry's TMJ and Facial Pain Research Center. From 1986 to 1995 he was co-director of Northwestern University Dental School's TMD Clinic. Since returning to UIC in 1995, Dr. Greene has served as Director of Orofacial Pain Studies. He currently is a clinical professor in the Department of Orthodontics at UIC. He has published over 130 articles, book chapters, and abstracts, and recently was co-editor of a multi-author book about temporomandibular disorders (Quintessence, 2006).