1981 Volume 6 Issue 1 Pages 33-39
The purpose of this study was to determine the effects of the voluntary exercise using EMG biofeedback mechanism for the patients who have had difficulty of jaw opening after surgical treatment of oral tumors. Five patients were selected from prosthodontics department in Iwate Medical university those of whom have had hard trismus due to scar and atrophy of muscles.
Auditory and visual EMG feedback mechanism were applied to voluntary muscles excercise.
The following results were obtained:
1. All over patients were recovered the jaw opening up-to 20mm.
2. Although, the radiotherapy and surgical procedure may effect the degree of jaw opening.
3. It is recognized that comprehension and cooperation of patient attitude for this excercise and term of excercise may be effected.
