Department of Oral and Maxillofacial Surgery, Zacamil's Nacional Hospital, Evangelic University of El Salvador, El Salvador.
Int J Oral Maxillofac Surg. 2011 Aug;40(8):877-9. doi: 10.1016/j.ijom.2011.02.012. Epub 2011 Mar 17.
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.
颞下颌关节（TMJ）脱位可根据移位方向和髁突头位置分为四组（前、后、外和上）。除前脱位外，所有类型均罕见。“反向”TMJ 脱位是一种双侧前上脱位，下颌骨嵌在上颌骨上方；据作者所知，文献中此前仅报道过两例。反向 TMJ 脱位具有独特的临床和影像学表现，本文对该病例进行了描述。
