A clinicostatistical study was performed in 94 patients with type II temporomandibular disorders (TMD, capsuleligament disorders) who presented at our clinic from 1992 through 1996. The results
were as follows:
1. In contrast to other types of TMD, the patients with type II TMD were predominantly male. Most of the patients had unilateral symptoms.
2. After nonsurgical treatment, such as pharmacotherapy or occlusal splint therapy, symptoms disappeared or improved in a short time (mean treatment period, 1.0 month).
3. These results suggest that pathophysiologically type II TMD results from transient inflammation in the synovium or capsule that is caused by intrinsic trauma.
