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Trismus is a condition in which one of the jaw muscles tightens or
spasms, holding the mouth shut. A person with trismus has problems talking,
eating, and brushing his or her teeth.
Trismus can result from injury, problems with the joint, surgery,
radiation treatment, or sometimes problems with clenching or tightening the
Treatment depends on the cause of the problem but often includes
oral devices and exercises.
Current as of:
November 20, 2015
Adam Husney, MD - Family Medicine & Arden Christen, DDS, MSD, MA, FACD - Dentistry
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