A retrospective study of temporomandibular joint (TMJ) dislocation was performed to analyze clinical conditions and treatment outcome. From 1998 to 2006, 31 patients with TMJ dislocation were treated in our department and were included in this study. Age, gender, affected side, past medical history, frequency of TMJ dislocation, and treatment methods were surveyed with patient records. Treatment outcome was surveyed by a questionaire. In terms of age distribution, the seventies was the most predominant, comprising 26% of all cases. There was no difference in gender. In this study, 20 out of 31 patients suffered TMJ dislocation habitually. In the in past history, 21 out of 31 patients had some sort of past medical history, psychiatric or cerebral diseases being most predominant. Twenty-six patients received conservative management and 5 underwent surgical treatment. After treatment, non-habitual patients obtained good results, while the outcome in the habitual patients varied according to the individual.
