Bruxism is a behavior identified in healthy individuals, which is characterized by an increased muscle activity of the masticatory muscles It has a multifactorial origin and translates into mechanical and biological consequences on muscles, joints and teeth (dental fractures, restorations, dentures, tooth mobility, increased sensitivity, muscle and/or joint symptomatology). It can generate muscle and/or joint overload and be a perpetuating/triggering factor of TMD. Patients with TMD do not necessarily have bruxism and vice versa.

The dentist plays a very important role in the early identification of Obstructive Sleep Apnea/Hypopnea Syndrome (OSAHS). The relationship between bruxism behavior and this type of pathology is supported by scientific literature and clinical data. In this sense, the dentist can be an agent of identification and early screening of this condition, since the manifestations of bruxism may exist and should be framed in a general health condition of the patient. In addition to the diagnosis, dentists can contribute to the therapeutic approach, with the confection of mandibular advancement devices (MAD) that are indicated for OSAHS, depending on the diagnosis and type of condition presented. Interdisciplinary work is crucial in these conditions, with interaction and sharing among the medical professionals who accompany the patient.

The diagnosis and personalized therapeutic approach of these conditions, requiring a careful analysis and an interdisciplinary approach involving different professionals and medical areas (dentist, physiotherapist, maxillo-facial surgeon, psychologist, ENT, neurologist, among others).