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방만혁,이동근,민승기,장동호,진국범,박경옥,Bang, Man-Hyeok,Lee, Dong-Keun,Min, Seung-Ki,Chang, Dong-Ho,Jin, Kuk-Beom,Park, Kyeong-Ok 대한악안면성형재건외과학회 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.1
Recently, we have used internal fixation with titanium miniplate which introduced by Champy in 1976 in facial bone fractures. In cases of mandibular fractures, particulary mandibular angle fractures, we usually underwent the open reduction extraorally. But extraoral approaches may leave scars and put the facial nerve at greater risk. So, we had undergone the intraoral approaches in 31 patients of mandibular angle fractures (male : 29, female : 2). These patients visited in Wonkwang university hospital from October 1991 to June 1993. We got easy operation time as average 20 minutes than extraoral approach. And reduced the postoperative nerve injury(14.2%), but postoperative infection is 6.1% nearly as same as extraoral approach. TMJ problems after intraoral open reduction was similar to extraoral approaches.
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동종 탈회골의 크기가 유도골 형성에 미치는 영향에 관한 실험적 연구
방만혁,이동근 원광대학교 치의학연구소 1995 圓光齒醫學 Vol.5 No.2
As early as 1889, treatment of ostemyelitis was reported using xenogeneic demineralized bone. In 1965, Urist discovered that demineralized long bone fragment, even when implanted in nonskeletal tissue, would stimulate osteogenesis. The clinical use of demineralized bone of Oral and Maxillofacial surgery is not new. The demineralized bone implants were used for 1) interposition within osteotomy gaps, cystic defects, alveolar clefts ; 2) augmentation, over intact bone surfaces ; 3) construction of new bone within soft tissue. Demineralized bone grafts provide a scaffolding, but contain no living cell. The success of these grafts invokes a induced osteogenesis which is the transformation of host cells into osteoblasts. Demineralized bone has identified several factors that modulate the osteogeneic response : sterilization method, recipient age, particle size etc. Especially, pulverization of bone matrix may enhance its osteoinductive properties, to allow rapid, efficient bridging of large defects. The purpose of the present report was to describe the potential efficacy of demineralized allogeneic bone powder of skull of rabbits as a particle size ; 212μm, 710μm, 1㎜ each other. Microscopic finding in our clinical studies shown that 710μm demineralized bone powder is the most potent osteogenic response, and then 212μm, 1㎜ size. Densitometric analysis shown that density of all group was continue to increase untill 4 weeks after operation, and then continue to decrease.
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동종 탈회골의 크기가 유도골 형성에 미치는 영향에 관한 실험적 연구
엄인웅,이동근,민승기,방만혁 大韓顎顔面成形再建外科學會 1995 Maxillofacial Plastic Reconstructive Surgery Vol.17 No.4
As early as 1889, treatment of ostemyelitis was reported using xenogeneic demineralized bone. In 1965, Urist discovered that demineralized long bone fragment, even when implanted in nonskeletal tissue, would stimulate osteogenesis. The clinical use of demineralized bone of Oral and Maxillofacial surgery is not new. The demineralized bone implants were used for 1) interposition within osteotomy gaps, cystic detects, alveolar clefts ; 2) augmentation, over intact bone surfaces ; 3) construction of new bone within soft tissue. Demineralized bone grafts invokes a induced osteogenesis which is transformation of host cells into osteoblasts. Demineralized bone has identified several factors that modulate the osteogeneic response : sterilization method, recipient age, particle size etc. Especially, pulverization of bone matrix may enhance its osteoinductive properties, to allow rapid, efficient bridging of large defects. the purpose of the present report was to describe the potential efficacy of demineralized allogeneic bone powder of skull of rabbits as a particle size ; 212 ㎛, 710㎛, 1 mm each other. Microscopic finding in our experimental studies shown that 710㎛ demineralized bone powder is the most potent osteogenic response, and then 212㎛, 1mm size. Densitometric analysis shown that density of all group was continue to increase until 4 weeks after operation, and then continue to decrease.
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진국범,박경옥,이동근,장동호,민승기,방만혁 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.1
Recently, we have used internal fixation with titanium miniplate which introduced by Champy in 1976 in facial bone fractures. In cases of mandibular fractures, particulary mandibular angle fractures, we usually underwent the open reduction extraorally. But extraoral approaches may leave scars and put the facial nerve at greater risk. So, we had undergone the intraoral approaches in 31 patients of mandibular angle fractures (male : 29, female : 2)> These patients visited in Wonkwang university hospital from October 1991 to June 1993. We got easy operation time as average 20 minutes than extraoral approach. And reduced the postoperative nerve injury(14.2%), but postoperative infection is 6.1% nearly as same as extraoral approach. TMJ problems after intraoral open reduction was similar to extraoral approaches.
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민승기,방만혁,권혁도,김은철,이동근,엄인웅 大韓顎顔面成形再建外科學會 1994 Maxillofacial Plastic Reconstructive Surgery Vol.16 No.2
One case of an unsual form of carcinoma involving the submucosal gland and duct of tongue was reported and reviewd. According to Gerughty et al(1968) four distinct component parts were classified: ductual carcinoma in situ(invovlement of the ductal epithelium by in situ carcinomatous changes), squamous cell carcinoma, and a mixed carcinoma(combination of glandular and squamous characteristics and occasionally consisted of large nests composed of "glassy" cell). This tumor was fond to be extremely aggressive and highly malignant. The histopathologic features and the clinical behavior of this tumor were sufficiently distinctive to warrant the designation adenosquamous carcinoma: exhibit concomitant glandular and squamous neoplasm. The mode of therapy was evaluated and the treatment of choice appears to be radical surgery. So, we has done the radical neck dissection and partial glossectomy. However, the limited number of cses indicated that collection and subsequent analysis of additional cases must be performed before any definitive conclusion can be drawn.
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엄인웅(Um ln Woong),방만혁(Bang Man Hyeok),이의석(Lee Eui Seok) 대한구강악안면외과학회 1995 대한구강악안면외과학회지 Vol.21 No.4
하악골과는 달리 상악골에서는 상악동의 함기(含氣, Pneumatization)와 소량의 피질골 때문에 임플란트 식립시 안정성에 많은 문제를 내포하고 있으며 이를 감소 시키기 위한 많은 방법의 소개 및 논란이 있어왔다. 1975년 Tatum은 상악동저의 거상을 위한 골 이식술을 처음 소개하였으며 1980년 Boyne과 James는 측방 골절술을 통한 상악동저의 접근을 처음 시도하였다. Adell과 Keller는 위축된 치조골 융기의 증장을 위하여 하부골에 장골 이식윷 하고 임플란트 식립을 시행하여 견고한 고정을 얻었으나 악간공간이 협소해지는 문제점이 발생하여 여러 종류의 골을 상악동저에 이식하는 술식을 하게 되었고 Branemark등은 골흡수가 심한 환자에 있어서 임플란프와 골이식을 시행하여 그 임상적 결과를 보고하였다. 임플란트 식립을 위한 상악동저 거상술시 하악골 피질망상 골편 뿐만아니라 장골, 경골, 수상화 인회석등이 많이 이용되어져 왔고 최근에는 탈회골 분말도 그 임상적 유용성이 소개되고 있다. 본 저자등은 통법적인 상악동저 거상술과 함께 하악골 피질망상골판을 상악동저에 이식하여 임플란트의 안정성을 얻고 부가적으로 신생골 형성을 촉진시키기 위하여 탈회 동종골편을 노출된 임플란트 주위에 이식하였으며, 현재까지 감염, 상악동염등의 합병증의 발생없이 양호한 결과를 보이고 있어 상악동저 거상술과 골이식술의 과정을 중심으로 보고 하는 바이다. This report outlines and introduces the technical aspects of implants which require maxillary sinus floor elevation for simultaneous autogenous mandibular block bone graft with human demineralized bone chips with placement of implants.
ScienceON
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