TMJ Abnormalities in Rheumatoid Arthritis Patients and Treatment of Complications.

概要

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In 54 patients with rheumatoid arthriris (RA), radiographic findings of condyle were classified into 5 types (Type I-Type V) and were investigated in relation to RA-stage, interval of RA, temporomandibular joint (TMJ) pain and complications.<BR>Onsets of RA at TMJs were late and mild as compared with other joints. Since many cases of TMJ pain were recognized in Type II, it is conjecturable that these cases included onset of RA in TMJs. Anterior open bite appeared from Type III in cases of bilateral molar supports, but from Type IV in cases of nonsupport; therefore, the frequency of anterior open bite was different in these two groups.<BR>Conservative treatments by intermaxillary traction and adapting activator type occlusal appliance were selected in cases of anterior open bite and obstructive sleep apnea syndrome. It is considered that these treatments were one kind of rehabilitation for muscle function to maintain an adequate mandible position and to compensate resorption of condyle and disappearing external pterygoid muscle function.
特定非営利活動法人日本口腔科学会の論文