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구강악안면영역에서의 Medpor<sup>TM</sup>의 임상적용
박광범,여환호,김수관,Park, Gwang-Bum,Yeo, Hwan-Ho,Kim, Su-Gwan 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.1
Recently, for the reconstruction of bony defect and cosmetic improvement, many graft materials and implants have been widely used in the various surgical situations. The alloplastic materials have many advantages such as simplicity of operation, no additional need of surgery, and easy manipulation. The $Medpor^{TM}$(porous high-density polyethylene, Porex Co., USA) was initially studied in 1972 for surgical implant and introduced as an implant material for oral and maxillofacial region by Sauer and King in 1988. This material permits full ingrowth of bone into the implants, substantially increasing the implant's incorporation into the recipient site. It can be shaved during the surgery, which results in an improvement and prefabricated various size and shapes to fit into the surgical defect. The $Medpor^{TM}$ was used in 32 patients from 1995 to 1997 at the maxillofacial region. It was used for paranasal augmentation in 24 cases, for malar augmentation in 2 cases, for infraorbital augmentation in 2 cases, for mandibular angle augmentation in 2 cases, for mandibular body augmentation in 2 cases, for chin vertical augmentation in 1 case. It was mainly fixed with miniplate or screw. There were few complications except one infection and one exposure of the implant.
상악골 Le Fort I 전진 골절단술후 비부의 연조직 변화
박광범,여환호,김수관,Park, Gwang-Bum,Yeo, Hwan-Ho,Kim, Su-Gwan 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.3
The nose, a striking features of the human face, is regarded by many clinicians as the keystone of facial esthetics. Clinically, as the treatment of a dentofacial deformity, the soft tissue changes that occurred normally with movement of the skeletal bases. Changes of the soft tissue in the maxillary orthognathic surgery are widening of alar base, elevated nasal tip and flattening of upper lip. In addition, soft tissue change is difficult to predict, it has considerable variability in the response of soft tissue. We reviewed patients who received Le Fort I advancement osteotomy in our department and analysed preoperative and postoperative alar base width, nasal height in clinical measurement and cephalometry and patient's satisfaction of postoperative nasal appearance.
임상원저 : 상악골 Le Fort 1 전진 골절단술후 비부의 연조직 변화
여환호(Hwan Ho Yeo),김수관(Su Gwan Kim),박광범(Gwang Bum Park) 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.3
The nose, a striking features of the human face, is regarded by many clinicians as the keystone of facial esthetics. Clinically, as the treatment of a dentofacial deformity, the soft tissue changes that occurred normally with movement of the skeletal bases. Changes of the soft tissue in the maxillary orthognathic surgery are widening of alar base, elevated nasal tip and flattening of upper lip. In addition, soft tissue change is difficult to predict, it has considerable variability in the response of soft tissue. We reviewed patients who received Le Fort I advancement osteotomy in our department and analyzed preoperative and postoperative alar base width, nasal height in clinical measurement and cephalometry and patient's satisfaction of postoperative nasal appearance.
여환호(Hwan Ho Yeo),김수관(Su Gwan Kim),박광범(Gwang Bum Park) 대한악안면성형재건외과학회 1999 Maxillofacial Plastic Reconstructive Surgery Vol.21 No.1
Recently, for the reconstruction of bony defect and cosmetic improvement, many graft materials and implants have been widely used in the various surgical situations. The alloplastic materials have many advantages such as simplicity of operation, no additional need of surgery, and easy manipulation. The MedporTM(porous high-density polyethylene, Porex Co., USA) was initially studied in 1972 for surgical implant and introduced as an implant material for oral and maxillofacial region by Sauer and King in 1988. This material permits full ingrowth of bone into the implants, substantially increasing the implant' s incorporation into the recipient site. It can be shaved during the surgery, which results in an improvement and prefabricated various size and shapes to fit into the surgical defect. The MedporTM was used in 32 patients from 1995 to 1997 at the maxillofacial region. It was used for paranasal augmentation in 24 cases, for malar augmentation in 2 cases, for infraorbital augmentation in 2 cases, for mandibular angle augmentation in 2 cases, for mandibular body augmentation in 2 cases, for chin vertical augmentation in 1 case. It was mainly fixed with miniplate or screw. There were few complications except one infection and one exposure of the implant.
구강악안면외과와 관련된 국내 학술지의 통계분석방법의 적용에 대한 연구
박광범,강태호,박정열 조선대학교 구강생물학연구소 2003 口腔生物學硏究 Vol.27 No.1
The purpose of this study to evaluate the statistical errors of domestic articles in the Journal of Korean Oral and Maxillofacial Surgeons and the Journal of Korean Maxillofacial Plastic and Reconstructive Surgeons. Of the articles, 131 articles were included which analyzed the data statistically. We made a checklist for detecting the errors according to the following steps: the of the experiment, the application of analytic method, and conclusion of the experiment. The results of this study were as follows 1. There were significant statistical errors in 23 of all 131 articles which may 18%. 2. Statistical errors in sample representive were 21 portions of 66 articles, in which the error rate of the sample design was 85.7% and the error rate of the classification and grouping was 14.3%. 3. Statistical errors in data description were 21 portions of 65 articles, in which the error rate of the measure of location was 85.7% and the error rate of the measure of dispersion was 33.3%. 4. Statistical errors in t-test were 78 portions of 41 articles, in shich the error rate of the normality was 51.3%, the error rate of the equality of variance was 46.2% and the error rate of the independence of observations was 2.5%. 5. Statistical errors in x^2 test were 8 portions of 3 articles, in which the error rate of the null hypothesis and the independence of observations was 37.5% and the error rate of the small number hypothesis was 25%. 6. Statistical errors in variance analysis were 18 Portions of 11 articles, in which the error rate of the null hypothesis was 44.4%, the error rate of the normality was 39% and the error rate or the sample size was 16.6% 7. Statistical errors in regression analysis were 8 Portions of 5 articles, which in the error rate of the normality of observations was 50%, the error rate of the additional model test was 37.5% and the error rate of the multicollinearity was 12.5%.