title: Epidemiology of signs and symptoms in temporomandibular disorders: clinical signs in cases and controls.
abstract: An epidemiologic study of clinical signs and symptoms of temporomandibular disorders (TMD) was conducted with a probability sample of adults enrolled in a major health maintenance organization (HMO). This report presents data from a first wave field examination and interview conducted by trained, calibrated dental hygienist field examiners. Significant gender differences for vertical jaw opening measures were observed but no significant age differences were found for the distribution of clinically relevant findings. Clinic cases showed smaller amounts of vertical range of jaw motion but did not differ from community cases or controls on extent of lateral, protrusive, or retrusive mandibular movements; on classification of occlusion; or on dentally related variables. Clinic cases had more pain during all jaw excursions as well as during muscle and joint palpation. Joint clicking sounds were also observed more frequently in clinic cases.
authors.affiliation: Department of Oral Medicine, University of Washington, Seattle 98195.
authors.forename: S F
authors.initials: SF
authors.lastname: Dworkin
authors.forename: K H
authors.initials: KH
authors.lastname: Huggins
authors.forename: L
authors.initials: L
authors.lastname: LeResche
authors.forename: M
authors.initials: M
authors.lastname: Von Korff
authors.forename: J
authors.initials: J
authors.lastname: Howard
authors.forename: E
authors.initials: E
authors.lastname: Truelove
authors.forename: E
authors.initials: E
authors.lastname: Sommers
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005157:Facial Pain / Q000453:epidemiology / Q000503:physiopathology; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007568:Jaw / Q000503:physiopathology*; D008297:Male; D008310:Malocclusion / Q000453:epidemiology / Q000503:physiopathology; D008875:Middle Aged; D009068:Movement; D012016:Reference Values; D012737:Sex Factors; D013016:Sound; D013705:Temporomandibular Joint Disorders / Q000453:epidemiology* / Q000503:physiopathology; D014481:United States / Q000453:epidemiology