The use of a dynamic opening device in the treatment of radiation induced trismus.

A commonly observed sequela of radiation therapy for malignancy of the head and neck is trismus. Patients may experience a marked restriction of jaw opening and overall mobility, which is of great concern and lessens the quality of life. A 66 year old edentulous man experiencing radiation therapy induced trismus was treated with a dynamic opening device to improve his opening and range of movement, before new maxillary and mandibular complete dentures were constructed for him.