Predictive Factors for Occlusal Changes in Obstructive Sleep Apnea Treatment With Mandibular Advancement Appliance

This research addresses obstructive sleep apnea syndrome (OSAS), affecting 6-12% of French adults, often treated with mandibular advancement devices (MADs). MADs may lead to occlusal modifications, causing a 50% treatment abandonment rate. The study employs surface electromyography to assess masticatory muscle activity before and during MAD use, correlating it with occlusal changes after 6 months. The primary goal is to determine dental displacement profiles post-6-month MAD treatment, providing insights for personalized care and minimizing treatment failures.

Inclusion Criteria: * Patient with complete dentition (up to second molars) * Polysomnography or polygraphy * Diagnosis of OSA * Patient receiving OAM treatment at the Odontology Department of Toulouse University Hospital * Patient with contemporary panoramic and lateral cephalometric X-rays (common practice) taken at the time of orthotic treatment * Individual affiliated with or covered by a social security scheme * Voluntary, informed, written consent, signed by both participant and investigator (prior to inclusion and any necessary research-related examinations). Exclusion Criteria: * Inability to provide informed consent * Pregnant or breastfeeding patient * Patient with curators, guardians, or legal protection