Associa??o de hábitos parafuncionais e DTM em pacientes classe II

摘要

Temporomandibular disorder (TMD) is the most commonchronic orofacial pain, found by dentists and other health professionals.Its etiology has a multifactorial character, and may involve, from hereditaryfactors, parafunctional habits, malocclusions, to anxiety and stress.This study investigated the TMD frequency and its relationshipamong parafunctional habits in a population of skeletal class II patients.Method: A sample composed by a class II patients was selected in a nonprobabilistic manner. Seventy-three members agreed to participate in theresearch, submitting themselves to a physical examination that consists in theapplication of Axis I (RDC / TMD). Results: Forty-six percent of patientsdiagnosed with a positive diagnosis. The average age of the patients was 27years ± 8.73 years, 82% female and 80% white. Thirty-four patients reportedsome parafunctional activity. Of these, biting nail represented the group mostfrequently, followed by bruxism, interposition of objects between the teethand lastly clenching. As variables did not present a statistically significantassociation with the primary outcome studied. Conclusion: In the samplestudied, it is observed that there is no association between TMD occurrenceand parafunctional habits in skeletal class II patients.