Recruitment and MAS therapy will be conducted at Lane and Associates Family Dentistry; a group of 27 dental practices located throughout the Triangle and Triad region of North Carolina. Advantages of using Lane & Associates are: large influx of new dental patients every month, fast recruitment, well-established protocols for screening for TMD and OSA and for referral of patients to sleep physicians for evaluation and PSG, standardized protocols for oral appliance therapy, and a Dental Sleep Medicine director who is highly experienced also in the management of TMD. The study coordinator is a dental hygienist in the University of North Carolina (UNC) School of Dentistry Dental Sleep Clinic who works in the School's Dental Sleep Medicine practice. She will travel to the Lane & Associates offices to assist in clinical and administrative activities and will manage all data collection for the 12 subjects. The Dental Sleep Clinic at the UNC School of Dentistry is not considered adequate to serve as the study site because it currently operates only one day a week and accepts referrals for only patients without TMD pain.