Inflammatory joint diseases(RA,AS,PS)can affect the temporomandibular joint (TMJ),but there has been uncertainty to what extent. There has also been a need for knowledge about the long-term outcome in the TMJ system for a general inflammatory joint disease.The results show that the signs and findings are caused by the general disease and are more common in RA than in PA and AS. We compared RA with a group (C) of patients with TMD symptoms but without general joint disease in a 15 year perspective.There was no clear correlation to the disease activity,which stayed on a medium level,indicating...