title: 'Inverse' temporomandibular joint dislocation.
abstract: Temporomandibular joint (TMJ) dislocation can be classified into four groups (anterior, posterior, lateral, and superior) depending on the direction of displacement and the location of the condylar head. All the groups are rare except for anterior dislocation. 'Inverse' TMJ dislocation is a bilateral anterior and superior dislocation with impaction of the mandible over the maxilla; to the authors' knowledge only two cases have previously been reported in the literature. Inverse TMJ dislocation has unique clinical and radiographic findings, which are described for this case.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Zacamil's Nacional Hospital, Evangelic University of El Salvador, El Salvador. dr.aleman@maxilofacialelsalvador.com
authors.forename: R M
authors.initials: RM
authors.lastname: Alemán Navas
authors.forename: M G
authors.initials: MG
authors.lastname: Martínez Mendoza
mesh_terms: D000063:Accidents, Traffic; D000293:Adolescent; D005500:Follow-Up Studies; D006801:Humans; D004204:Joint Dislocations / Q000145:classification* / Q000000981:diagnostic imaging; D008297:Male; D008335:Mandibular Condyle / Q000000981:diagnostic imaging / Q000293:injuries*; D008349:Manipulation, Orthopedic; D008437:Maxilla / Q000000981:diagnostic imaging; D011859:Radiography; D013701:Temporal Bone / Q000000981:diagnostic imaging; D013704:Temporomandibular Joint / Q000000981:diagnostic imaging / Q000293:injuries*; D015050:Zygoma / Q000000981:diagnostic imaging