In a recent study in The Journal of Orofacial Pain, it was concluded that the prevalence of pain associated with TMD (Temporomandibular Disorders) and the impact of this dysfunctional pain were high in OSAS (Obstructive Sleep Apnea Syndrome) patients referred for oral appliance therapy.

The findings suggest that standardized criteria for TMD diagnosis should be part of the examination procedure for OSAS patients referred for oral appliance treatment. They also suggest that support therapy for TMD should be used by OSAS patients undergoing oral appliance therapy, and by patients with preexisting TMD symptoms. Support therapy could prevent or reduce pain associated with TMD.

Further studies are needed to understand the connection between sleep quality and the incidence of TMD.