title: Prevalence and variance of temporomandibular dysfunction in orthognathic surgery patients.
abstract: Seventy-five patients were studied retrospectively to assess the prevalence and variance of temporomandibular dysfunction in an orthognathic surgery population. Preoperatively, 49.3% of the sample presented with temporomandibular dysfunction. After orthognathic surgery, of the symptomatic patients, 89.1% had improved temporomandibular function after surgery, 2.7% were unchanged, and 8.1% had increased symptoms. Of the patients asymptomatic prior to surgery, 7.9% developed temporomandibular dysfunction postoperatively. Temporomandibular dysfunction was significantly more prevalent in patients with a Class II skeletal deformity than in those with a Class III deformity, and temporomandibular function generally improved in both groups postsurgically.
authors.affiliation: University of Florida, College of Dentistry.
authors.forename: C S
authors.initials: CS
authors.lastname: White
authors.forename: M F
authors.initials: MF
authors.lastname: Dolwick
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D016009:Chi-Square Distribution; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000150:complications* / Q000601:surgery; D056948:Orthognathic Surgical Procedures; D015995:Prevalence; D012189:Retrospective Studies; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications* / Q000453:epidemiology*