Dennis R. Bailey is the Co-Director of a comprehensive program in Dental Sleep Medicine at the UCLA School of Dentistry. He is a faculty member of the dental school at UCLA in Orofacial Pain and Dental Sleep Medicine. He retired from private practice where he managed patients for sleep related breathing disorders, TMD, and orofacial pain. Ronald Attanasio is Professor and Director of the Temporomandibular Disorders and Orofacial Pain Clinic (now retired). His faculty practice focused on the management of patients suffering from TMD, orofacial pain, and sleep-related breathing disorders.