title: Prevalence of temporomandibular joint internal derangement in patients with craniomandibular disorders.
abstract: To determine the prevalence of temporomandibular joint internal derangement in patients with signs and symptoms of craniomandibular disorders, bilateral imaging was performed in a consecutive series of 115 patients with signs and symptoms of craniomandibular disorders. Ninety patients (78%) had different stages of unilateral or bilateral internal derangement, and 25 patients (22%) had normal temporomandibular joints bilaterally. Out of 230 joints, 60 showed disk displacement with reduction, 8 showed disk displacement without reduction, and 29 showed disk displacement without reduction associated with anthrosis. The study indicates that almost 80% of patients with signs and symptoms of craniomandibular disorders have different forms of internal derangement.
authors.affiliation: Department of Orthodontics, Eastman Dental Center, Rochester, N.Y.
authors.forename: D
authors.initials: D
authors.lastname: Paesani
authors.forename: P L
authors.initials: PL
authors.lastname: Westesson
authors.forename: M
authors.initials: M
authors.lastname: Hatala
authors.forename: R H
authors.initials: RH
authors.lastname: Tallents
authors.forename: K
authors.initials: K
authors.lastname: Kurita
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002358:Cartilage, Articular / Q000000981:diagnostic imaging / Q000473:pathology; D002648:Child; D005260:Female; D006801:Humans; D004204:Joint Dislocations / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology; D008279:Magnetic Resonance Imaging; D008297:Male; D008335:Mandibular Condyle / Q000000981:diagnostic imaging / Q000473:pathology; D008875:Middle Aged; D015995:Prevalence; D011859:Radiography; D013705:Temporomandibular Joint Disorders / Q000150:complications* / Q000000981:diagnostic imaging / Q000473:pathology; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000150:complications*