Typically presents with 4 characteristic features: TMJ pain, noise in the joint, masticatory muscle tenderness, and limited mandibular movement.
Diagnosis is based on history and physical examination.
Imaging tests are usually not required. A CT scan that includes the mandibular condyles may be useful for diagnosing osteoarthritis, if bone degeneration is present.
Generally a self-limiting disorder. Treatment options include joint rest, or a brief course of benzodiazepines may be useful in selected patients. Non-steroidal anti-inflammatory drugs may help people with the internal derangement or osteoarthritis subtypes.
TMJ syndrome is a term describing several painful disorders involving the mandibular joint. The 3 most common subtypes are myofascial pain and dysfunction, internal derangement, and osteoarthritis.  Myofascial pain and dysfunction is the most common subtype and affects the muscles of mastication. Internal derangement involves the dislocation of the articular disc in the glenoid fossa. Osteoarthritis of the TMJ involves degeneration of the articular cartilage.
Private Dental Practice
SM declares that she has no competing interests.
Department of Endodontics
University of North Carolina Dental Research Center
WM declares that he has no competing interests.
Clinical Lead in Oral Surgery
Plymouth University Peninsula Schools of Medicine & Dentistry
KA declares that he has no competing interests.
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