http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
정필훈 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.1
In order to develop the allogeneic bone implants instead of autogenous bone grafts for maxillofacial reconstruction, undemineralized freeze-dried human bone was processed. The freeze-dried human bone was implanted into the cranial and mandibular defects of the rabbits. The implants were evaluated clinically, roentgenographically and histomophmetrically. And immunohistochemical evaluation of the implants was performed on the rat. The results were as follows : 1. When compared with control defects of 0.8×0.8cm, the implants on the rabbit defects displayed complete osseous bridging clinically and roentgenographically. Histomophometrically a minimal inflammatory cell infiltrate was present but the defects healed well clinically. 2. When compared with control grafts, the freeze-dried implants on the rat muscle displayed decreased antigenicity by immunohistochemical evaluation, due to freeze-drying process. 3. Undemineralized freeze-dried human bone in this study can be preserved as a bank bone in this study and seems to be applicable for clinical allogeneic bone grafts.
정필훈,강나라,홍종락 대한구순구개열학회 2002 대한구순구개열학회지 Vol.5 No.2
Simultaneous implant installation with bone graft was performed in 15 cases. Four cases were cleft alveolus patients. 56 implants were placed immediately with block bone grafts. 2 csses were cranial bone grafts and the others were iliac bone grafts. Three of 56 implants were lost(94.6% survival rate). One of three was cleft alveolus case. The cleft alveolus patients with simultaneous implants installation showed functional and esthetic results without infraocclusion and positional changes. Bergland index was considered to be type I after 12 months later. Immediate implant installation with bone graft is one of choice of treatment in closing cleft alveolus hoping sitnultaneous implant installation could be related with function which might result in less resoiption of graft. Functional and esthetic results are satisfactoiy ; there was no infraocclusion and positional changes.
구순 구개열 환자에서의 새로운 구강내 접근 Le Fort Ⅱ 골절단수
정필훈,김광호 대한구순구개열학회 2001 대한구순구개열학회지 Vol.4 No.2
Midfacial retrusion is one of characteristics of cleft patients due to underdevelopment of the midface. In this case, Le Fort II advancement is indicated. But there has not been reported on intraoral approach to Le Fort II osteotomy for correction of midface, which traditional technique resulted in facial scar. To overcome the problems, Le Fort II osteotomy via only intraoral approach named Intraoral Le Fort II osteotomy was developed by Choung in 1994, this technique was applied to cleft patients. A new technique of Intraoral Le Fort II osteotomy for correction of midface in cleft patients was successfully carried out with good results. This technique showed no noticeable relapse nor complications, which is reported.
구강내하악지수직시상골절단수술 전후 전류역치검사(CPT)를 이용한 지각신경의 변화에 대한 연구
정필훈,김수걸,서병무 대한구순구개열학회 2001 대한구순구개열학회지 Vol.4 No.1
The design of osteotomy plane in ortl10gnathic surgery has been developed to diminish tl1e nerve injury. Lntraoral Vertico-Sagittal Ramus Osteotomy (NSRO) is the one of the best way to minimize untoward results, which is designed not to expose the lingula. We evaluated tl1e nerve damage before and after with current perception threshold (CPT) test which is modem and numerically expressible way of nerve damages. Sixty patients underwent NSRO since 1998 were evaluated. They were divided into 2 groups; one group underwent NSRO only, and tl1e other underwent NSRO 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. The 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 NSRO. 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.