Advances in the pathogenesis of traumatic temporomandibular joint ankylosis

Abstract

Temporomandibular joint (TMJ) is a synovial joint composed of condyle, articular disc, temporal fossa and other structures. TMJ is prone to joint diseases due to its frequent activities and bite force. Temporomandibular joint ankylosis (TMJA) is a serious joint disease, which can lead to fibrous adhesion or bone adhesion within the joint, affect mandibular movement and cause facial deformity. Previous studies have shown that trauma, infection, systemic diseases and other causes can cause TMJA, among which trauma factors account for about 90%. The pathogenesis of traumatic TMJA is complex, treatment is difficult and there is a certain recurrence rate. However, the pathogenesis of traumatic TMJA has not been truly revealed, and animal model studies vary. In this article, the related factors and pathogenesis of traumatic TMJA were discussed.