Prognosis of conservative treatment in individuals with temporomandibular disorders and tinnitus: a systematic review

Introduction: There are reports in the literature of improved tinnitus after treatment for temporomandibular disorders (TMDs), however there's the lack of standardization of these interventions. The aim was analyzed the results of conservative treatment in individuals with TMDs in terms of tinnitus. The target outcome of the studies was subjective perception of improvement in tinnitus before and after conservative treatment. Methods: A systematic review was performed, according to Cochrane's recommendations, registered on Prospero (CRD42017063832). In the universe of 1052 titles, 211 abstracts were read and 10 full articles were selected and divided into groups: group 1 - Individuals with TMD/tinnitus treated with a myorelaxant splint and group 2 - Individuals with TMD/tinnitus treated with a myorelaxant splint and associated therapies such as: physiotherapy, acupuncture among others. Results: The two groups showed promising results in terms of tinnitus improvement and remission, with a statistically significant different in group 2, which exhibited a higher percentage of improvement or remission, suggesting that the combination of a myorelaxant splint and other conservative therapies is the best approach. Conclusion: TMD treatment showed good results for improvement in tinnitus, particularly in those who complained of muscle pain.