Prognostic factors associated with a restricted mouth opening (trismus) in patients with head and neck cancer: Systematic review.
Sarah J van der GeerPhillip V van RijnJan L N RoodenburgPieter U DijkstraPublished in: Head & neck (2020)
Patients with head and neck cancer will most likely develop a restricted mouth opening when they have a large tumor near the masticatory muscles that requires extensive cancer treatment. A restricted mouth opening most likely occurs within 6 months after cancer treatment. Further research is necessary on factors related to healing tendency or pain intensity.