THE JOURNAL OF THE TOKYO DENTAL COLLEGE SOCIETY

Vol. 108 No. 2      April 2008

ISSN: 0037-3710      UBIC: 342-J

ABSTRACT

The etiology of TMD remains unclear, despite recent progress in several diagnostic methods. To obtain more information on this disease, we performed a clinical evaluation of 252 patients with TMD who visited our department over the last four years. Ratio of men to women was 1: 1.73. Distribution of age groups showed two peaks, in the 20-30s and 50s. Pain was the most frequent chief complaint (157 cases). The next most frequent chief complaint was restricted mouth-opening (129 cases). Followed by joint noise (87 cases). Based 00 classification according to the Japanese Temporomandibular Joint Society, type distribution was as follows: Type III a was most frequent (55.7%), followed by Type III b (28.4%). Type I (7.9%), Type IV (4.8%). Type II (2.7%), and Type V (0.6%). In Type III (internal derangement of TMJ), there were many cases with pain in joint region or muscle region. There were 48%, and it was most cases. Treatment involved a bite splint in 188 cases, other treatment 64 cases. The results suggest that a pathophysiological diagnosis is essential in the treatment of cases of TMD. (The Shikwa Gakuho, 108 : 137-142, 2008) Key words: TMD, clinical study, internal derangement of temporomandibular joint (TMJ), case classification.

| Volver |