S-Space College of Dentistry/School of Dentistry (치과대학/치의학대학원) Dept. of Dentistry (치의학과) Journal Papers (저널논문_치의학과)
구강내하악지수직시상골절단수술 전후 전류역치검사(CPT)를 이용한 지각신경의 변화에 대한 연구 : Evaluation of Sensory Nerve Function Before and after Intraoral Vertico-Sagittal Ramus Osteotomy Using Current Perception Threshold(CPT) Test
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- Issue Date
- 대한구순구개열학회지 4:39-43,2001
- CPT ; Orthognathic surgery ; IVSRO ; Neurosensory disturbance
- The design of osteotomy plane in orthognathic surgery has been developed to diminish the nerve injury. Intraoral Vertico-Sagittal Ramus Osteotomy (IVSRO) is the one of the best way to minimize untoward results, which is designed not to expose the lingula. We evaluated the nerve damage before and after with current perception threshold (CPT) test which is modem and numerically expressible way of nerve damages. Sixty patients underwent IVSRO since 1998 were evaluated. They were divided into 2 groups; one group underwent IVSRO only, and the other underwent IVSRO plus genioplasty. The both groups were evaluated with CPT test 1 week before surgery, and 1, 3 and 6 months after surgery. The CPT test was performed on A-beta, A-delta and C fiber respectively. 111e result showed that the recovery of sensory function of damaged nerve fibers was observed at the period of three to six months after surgery. There was no impairment of nerve function after only the IVSRO . But there were sensory disturbances in cases of additional genioplasty group. We thought that one of major factors on nerve damages were exposure of nerve and traction injury during genioplasty.
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