Subjective symptoms in patients with temporomandibular joint disk displacement versus patients with myogenic craniomandibular disorders.

Signs and symptoms in the masticatory system can be caused by several specified diseases leading to diagnostic problems. This investigation compared patients with temporomandibular joint disk displacement and patients with complaint of myogenic craniomandibular disorders. In association with the onset of the patient's problem, a physical event was found in half the number of patients with permanent disk displacement, compared with only 27% in the myogenic craniomandibular disorders group. Patients with permanent disk displacement reported more pain in the temporomandibular joint ear and jaw region in association with jaw function whereas patients with myogenic craniomandibular disorders reported more bruxism and dental discomfort.