Abstract
Four hundred consecutive classic closed lock cases were examined. Of these, 301 were treated Mandibular range of motion was restored by condylar distraction during jaw opening, anterior, and lateral movements. Mandibular appliances were used to prevent complete closure during healing. Of the 45 males and 355 females examined, almost all reported jaw restrictions, but 38% reported little or no pain. Secondary disorders of temporomandibular joint inflammation, muscle spasm, trigger points, and cervical dysfunction were seen on patients with temporomandibular joint pain. Of the 301 conservatively treated patients, 209 were successfully treated, 55 were moderately successful, and 37 failed. Occlusal factors did not appear as primary etiologic factors. Because all locks were preceded by clicking, treatment is recommended for clicking temporomandibular joint's that lock however briefly, to prevent future locking. Conservative closed lock treatment is successful in many cases.
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