Trismus |
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| Lock Jaw; Masseter Spasm; Masseter Muscle Spasms; Masseter Spasms; Muscle Spasm, Masseter; Muscle Spasms, Masseter; Spasm, Masseter; Spasm, Masseter Muscle; Spasms, Masseter; Spasms, Masseter Muscle | |
| Spasmodic contraction of the masseter muscle resulting in forceful jaw closure. This may be seen with a variety of diseases, including TETANUS, as a complication of radiation therapy, trauma, or in association with neoplastic conditions. | |