Trismus is a condition that is defined by a person that is unable to open the mouth. The main cause of trismus is pericoronitis of wisdom teeth, which is the inflammation of soft tissue around the partially impacted tooth. Another cause of trismus can be dry socket which might occur after tooth extraction. Other reasons of trismus are in temporomandibular joint disorder (TMD) and inflammation of muscles of mastication.


  1. Wikipedia, the free encyclopedia (
  2. Medical dictionary by Farlex (

The information above should be used as a reference only. Any medical decision should not be taken before consulting a health care professional.

The masculine gender may have been more used in the article, but without prejudice, to make reading easier.

Category dental problems