Manual Therapy and Use of the Dynasplint for Trismus in Patients With Head and Neck Cancer

Participants will receive a session of 30-45 minutes of manual therapy two times per week, for eight weeks. All participants will be instructed how to use the Dynasplint® Trismus System at home. Participants will start the use of the DTS for 10-30 minutes three times per day, every day. If the exercises are well tolerated, time will be progressively increased to 30 minutes and then intensity (force) will be increased.