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백서 두개골 부분결손시 골막 유무에 의한 골치유 양상에 관한 연구
조병욱,심정원,송영완 大韓顎顔面成形再建外科學會 1996 Maxillofacial Plastic Reconstructive Surgery Vol.18 No.4
Bony defects may be found as a result of congenital anomalies, traumatic injury, automobile collisions and industrial accidents in the maxillofacial area. Such conditions are often associated with severs functional and esthetic problem. Various surgical procedure has been utilized in attempts to repair and reconstruct bony defects. Bone is a complex, living, constantly changing tissue. The architecture and composition of cancellous and cortical bone allow the skeleton to perform its essential mechanical functions. Periosteum covers the external surface of bone and consists of two layers: an outer fibrous layer and an inner more cellular and vascular layer. The inner osteogenic layer or cambium layer can form new bone while the outer layer firms part of the insertions of tendons, ligaments and muscles. This study was under taken to evaluate bone healing process on partial defect of calvarial bone with or without periosteum in rat. We made calvarial defects of different size(4mm, 6mm, 8mm) with periosteum or without periosteum in rat to study the effect of defect size on healing process. Control and experimental groups sacrified at 1, 2, 4, 6, 8 weeks, postoperatively. We examed the specimens by gloss findings, light microscophy, and fluorescent microscophy. The results were as follows. 1. Gloss findings: Control groups are larger bony defects than experimental groups after 2 weeks, and than control groups advanced healing of defected bone but experimental groups are lesser after 4, 6 weeks. After 8 weeks, bone defect has not been identified in control and experimental groups. 2. Light microscope: All defects of control groups are larger bony defects than experimental groups after 2 weeks. And than control groups show smaller defect after 4 weeks. After 8 weeks, the control group reveal pin-point sized, hardly identifiable defect space and the experimental group reveal small, but definite defect space. 3. Fluorescent microscope: Each week, new bone formation of control group is very similar to the experimental group. In this study, Ostegenesis of calvarial bone defects with periosteum or without periosteum was examined for 8 weeks in rats. The replaced periosteum had batter new bone formation than the removed periosteum.
顎矯正術을 받은 顎顔面 寄形患者의 SKELETAL PATTERN의 變化에 關한 硏究
조원표,조병욱,고백진,이용찬 大韓顎顔面成形再建外科學會 1990 Maxillofacial Plastic Reconstructive Surgery Vol.12 No.3
In the treatment of dentofacial deformities, analysis of skeletal pattern, with evaluation of plaster dental case, is essential procedure. This study was based on 20 patients with dentofacial deformity who were admitted to the department of oral and maxillofacial surgery Kngnam sacred heart Hospital during the period of Jan 1989. We studied serial cephalometric radiogarphs of patients (pre-op, postop immediately, postop 6 moth). The obtained results indicates the good resistance of rigid fixation against relapse in orthognathic surgery.
측두하악관절 내장증 환자의 자기공명영상에서 관절 원판의 전방 이동에 관한 연구
유하식,문창수,조병욱,이열,이용찬,이한욱 大韓顎顔面成形再建外科學會 1993 Maxillofacial Plastic Reconstructive Surgery Vol.15 No.3
Tempormandibular Joint pain and dysfunction is a common and important clinical problem. With the recent advances in imaging technology, radiologists have made major contribution to the understanding of TMJ disease. The MRI has several advantages over the conventional imaging methods. It is possible to obtain surprisingly precise images of internal hard and soft tissues with MRI. It is not invasive without ionizing radiation. The abnormal disk position has been thought as the cause of TMJ internal derangement. But there are few methods to relate disk position to TMJ internal derangement quantatively. The object of our study is to determine the amount of anterior displacement fo articular disk in symptomatic patients related each symptoms. Using the method of Dr. Drace, we studied the 38 joints of 22 persons with susceptable TMJ internal derangement. 1. In determining the anterior displacement of TMJ articular disk, the junction between the posterior band and bilaminar zone was useful. 2. The mean anterior displacement of disk in reduction group and without reduction gouop were 51.0 and 81.1 respectively. The difference was significant. 3. In the mean anterior displacement of disk, the pain without clicking group showed 84.8 and the clicking and pain group 70.8, the clicking group respectively.
Study on changes of hyoid bone and upper airway following osteotomy of mandibular prognathism
조병욱(Byoung Ouck Cho),안병근(Byoung kun Ahn) 대한구강악안면외과학회 1990 대한구강악안면외과학회지 Vol.16 No.1
하악골 시상골 골절단술후 일어나는 혀와 설골의 순응에 대하여 많은 관심을 가져왔다. 이 연구의 목적은 하악골의 골절단술에 의한 후방이동후 혀와 설골의 변화에 따른 회귀성향에 대해 연구하는데 있다. 저자등은 한림대학교 의과대학 구강악안면 외과에서 하악골 시상골 골절단술을 이용하여 하악 전돌증을 교정한 환자를 대상으로 하였다. 측정방법으로는 술전, 수술직후, 수술 6개월 경과후의 두부 방사선 계측사진을 이용하였으며, 모든 두부 방사선 계측사진의 측정은 한사람이 분석하였다. 혀와 설골의 위치변화를 평가할 목적으로 각각의 두부 방사선 계측사진으로부터 설골을 중심으로한 5개의 거리계측과 3개의 각도계측을 측정하였다. 결론 1. 하악골 골절단술 후에는 설기저의 하방 또는 약간의 후방이동으로 기도를 유지한다. 2. Cervical vertebrae에 대한 설골의 전후방 관계는 거의 변화가 없이 상기도를 유지한다. 3. 두부 방사선 계측사진의 정확성과 두부의 위치의 고정성등의 요건에 따라서 설골의 위치변화가 심하므로 이에 대한 계속적인 연구가 필요할 것으로 사료된다.
새로운 봉합술식을 사용한 하악전정성형술에 대한 증례보고
조병욱(Byoung Ouck Cho),이순관(Soon Kwan Lee),박준우(Joon Woo Park),안명석(Myung Suk Ahn) 대한구강악안면외과학회 1984 대한구강악안면외과학회지 Vol.10 No.1
A Simplified, New Suture Technique in mandibular vestibuloplasty provided excellent improvement in stability of stent during the healing period and shows minimal to no relapse. In this case, no graft was used. Muscle attachments were repositioned and vestibular depth was optimally increased. Exposed periosteum was healed by secondary epithelialization. Satisfactory result has been obtained with this technique over 1 year.
조병욱(Byoung Ouck Cho),이용찬(Yong Chan Lee),김태영(Tae Young Kim),양용석(Yong Seog Yang) 대한구강악안면외과학회 1990 대한구강악안면외과학회지 Vol.16 No.1
Despite recent advance in diagnostic radiology, current technique for radiographic evaluation of the oral and maxillofacial region continues to present the clinician with difficult problems in interpretation and diagnosis. Applied to CT studies of complex oral and maxillofacial region, this method has delineated abnormal facial soft tissue and bony morphology, faciliated surgical planning and improved quantitative postoperative evaluation. The use of three-dimensional images reconstructed from CT data improves the diagnostic value of conventional CT at no additional risk to the patient and can provide new insinghts into this complex anatomic structure.
조병옥(Byoung Ouck Cho),이용찬(Yong Chan Lee),문창수(Chang Soo Moon),송영환(Young Wan Song),원임수(Rim Soo Won) 대한악안면성형재건외과학회 1994 Maxillofacial Plastic Reconstructive Surgery Vol.15 No.4
The trauma has been known as a major etiologic factor in temporomadibular joint disorders The endotracheal intubation is suspected as one of the traumatic factor to temporomandibular disorder. But there are few reports about the amount of mouth opening during endotracheal intubation and temporomandibular joint disorder after endotracheal intubation. The authors studied the effects of endotracheal intubation to temporomandibular joint with 70 patients given surgical operation through general anesthesia The results were as follows. 1. The mean amount of mouth opening for entire patients during endotracheal intubation was 26.3mm(s, d: 2.6), for oral intubation group 25.9mm(s, d: 3.2), for nasal intubation group 26.6mm(s, d: 1.9). There was no difference between two group stastically. (p<0.05) 2. 1 week later endotracheal intubation, the maximum mouth opening increased 1.5mm for entire patients, 1.5mm for oral intubation group, 1.6mm for nasal intubation group than behare endotracheal intubation. 3. Five patients complained the discomforts around temporomandibular joint after endotracheal intubation. The amount of mouth opening during endotracheal intubation was within physiologic range. It seemed that 45° upward endoscopic lifting for exposure of glottis gave trauma to temporomandibular joint.
조병욱(Byoung Ouck Cho),이순관(Soon Kwan Lee),박준우(Joon Woo Park),안명석(Myung Suk Ahn) 대한구강악안면외과학회 1984 대한구강악안면외과학회지 Vol.10 No.1
We have used self compression plates and screws in the treatment of carefully selected 31 cases of mandibular fractures. It provides stable fixation and compression both buccal and lingual sides of the fracture site without rotation. In these cases, this procedure can obviate the need for dental fixation in young and active patients or in patients with multiple injuries. It can also be used for fixing the mandible after osteotomy or ostectomy, for bone transplants and in the temporary transection of the mandible for the surgical treatment of malignant tumors of the tongue and floor of mouth.
하악골 시상골 절단술시 하악골 과두의 중심 교합위의 보존
조병욱(Cho Byoung Ouck),이영호(Lee Young Ho),남종훈(Nam Jong Hoon) 대한구강악안면외과학회 1987 대한구강악안면외과학회지 Vol.13 No.1
The sagittal split ramus osteotomy (SSRO) of the mandible has been widely accepted as a surgical correction of mandibular deformities since 1950 s. Relapse after the SSRO, however, is one of the commonly mentioned complications after the SSRO. This complication may be partly due to displacement of condylar segment, which was well documented. Therefore it is important to bring the condylar segment into its original position, especially with the consideration of rigid fixation which does not permit any compensating changes between the condylar and tooth-bearing segment. This paper demonstrates a method of conserving the original position of condylar segment which was documented as a vital part of relapse after the SSRO.
하악의 후방이동을 위한 하악골 시상골절단술 후의 회귀성향에 관한 연구
조병욱(Cho Byoung Ouck),이용찬(Lee Yong Chan),남종훈(Nam Jong Hoon),김태영(Kim Tae Young) 대한구강악안면외과학회 1988 대한구강악안면외과학회지 Vol.14 No.1
Relapse after sagittal split ramus osteotomy was well documented. Most of these studies, however, were associated with cases which were fixed by transosseous wiring technique. For that reason, relapse rates after sagittal split ramus osteotomy were reported to be reasonably high. We studied serial cephalometric radiographs of patients who treated with sagittal split ramus osteotomy by rigid screw fixation, and our study indicates resistance of rigid screw fixation against relapse after sagittal split ramus osteotomy.