Trismus in head and neck cancer: translation and validation of the Chinese version of the Gothenburg Trismus Questionnaire-2 (C-GTQ-2).

Objectives: Trismus, marked by restricted mouth opening, significantly affects patients with temporomandibular disorder (TMD) and head and neck cancer (HNC). Despite its prevalence, specialized questionnaires for trismus assessment are scarce. This study aims to fill this gap by translating and validating the Gothenburg Trismus Questionnaire version 2 (GTQ-2) into Chinese (C-GTQ-2), enhancing the evaluation of trismus in HNC and TMD patients.

Exercise therapy for cancer treatment-induced trismus in patients with head and neck cancer: A systematic review and meta-analysis of randomized controlled trials.

Background: Trismus is a common complication of cancer treatment, particularly radiotherapy, for head and neck cancer. We investigated whether exercise therapy could prevent or manage limited mouth opening in patients before or after the cancer treatment.

Methods: We performed a systematic review and meta-analysis to evaluate the effectiveness of exercise therapy combined with a jaw-mobilizing device in the prevention and treatment of cancer treatment-induced trismus.