Internal Derangement of the Temporomandibular Joints
Chapter 110 provides a systematic approach to the imaging techniques and interpretation of the temporomandibular joint (TMJ). The most common TMJ conditions and treatment options are discussed. The TMJ plays a crucial role in mastication, jaw mobility, and verbal and emotional expression. Temporomandibular disorders (TMDs) include several entities that can lead to orofacial pain symptoms. Common symptoms include jaw pain, jaw dysfunction, earache, headache, and facial pain. Multiple risk factors have been implicated, including trauma, anatomical factors, pathophysiological factors, and psychosocial factors. TMJ dysfunction is best evaluated with MRI. Internal derangement is the most common TMJ disorder, followed by degenerative joint disease.