The purpose of this study is to determine whether sensory retraining exercise could improve lip numbness caused by bilateral sagittal split of mandible.
The study is a prospective randomized controlled trial. The patients receiving bilateral sagittal split osteotomy and having lip numbness or paraesthesia will be included in this study. 80 patients will be included and randomized into two groups and there are 40 patients in each group. The control group is to maintain follow up in clinic and do not receive any sensory retraining exercise. The experimental group is requested to perform sensory retraining at home by themselves.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Enrollment
80
1. within one month after the surgery: facial massage and physical stimulation over lower face and lip, four times (20 minutes each time) a day 2. one to three months after the surgery: brush and physical stimulation over lower face and lip, four times (20 minutes each time) a day 3. three to six months after the surgery: brush, pin and physical stimulation over lower face and lip, four times (20 minutes each time) a day
Chang Gung Memorial Hospital
Taipei, Taiwan, Taiwan
sensory function test
The sensory function evaluation include objective and subjective examinations as the followings: 1. Questionnaire 2. Visual analogue scale (VAS) 3. Two-point discrimination (2PD) 4. Pain detection threshold (PD) tests 5. Touch sensory threshold
Time frame: one year after surgery
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