This article discusses common conditions related to temporomandibular joints including disc displacements inflammatory disturbances loose joint bodies traumatic disturbances and developmental conditions also addressed are the appropriate imaging modalities and diagnostic criteria for tmd. Temporomandibular joint disorders and orofacial pain temporomandibular disorders tmd affect 5 to 12 of the united states population this article discusses common conditions related to temporomandibular joints including disc displacements inflammatory disturbances loose joint bodies traumatic disturbances and developmental conditions. The article focuses on the nonpathologic involvement of the musculoskeletal system as a source of head and orofacial pain the areas of the musculoskeletal system that are reviewed include the temporomandibular joint and muscles of mastication collectively referred to as temporomandibular disorders tmds and cervical spine disorders. Temporomandibular disorders tmd affect 5 to 12 of the united states population this article discusses common conditions related to temporomandibular joints including disc displacements inflammatory disturbances loose joint bodies traumatic disturbances and developmental conditions