We used a combination of arthrocentesis, mouth opening exercises, and nansteroidal antiinflammatory drugs as a primary treatment for temporomandibular joint (TMJ) osteoarthrosis. This study evaluated the long-term results of this treatment by a mail questionnaire. Fifty patients with moderate and severe TMJ dysfunction who had TMJ unilateral osteoarthrosis were followed up from 1 year 6 months to 3 years 3 months (mean: 2 years 4 months) after the combined treatment. Of the 43 patients who returned the questionnaire, 37 (74%) had an acceptable outcome. Maximal mouth opening, pain on chewing, and pain on opening the mouth at the time of responding to the questionnaire were significantly better than those at time of finishing primary treatment. These results showed that stable effects were maintained after combined primary treatment.
