In a Dentistry iQ report, Elizabeth Kornegay, RDH, BSDH, focuses on the connection between sleep apnea and bruxism as they relate to predicting first-onset temporomandibular disorders.

To investigate this mechanism, we hypothesized that OSA symptoms, awake bruxism, and sleep bruxism at baseline were independent predictors of developing TMD in initially pain-free individuals. To evaluate this hypothesis, data were analyzed from the prospective cohort, “Orofacial Pain, Prospective Evaluation and Risk Assessment” (OPPERA). These data enable investigation of risk factors for TMD incidence in people with no lifetime history of TMD.