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이식된 결합조직 교원막이 초기 접합상피의 근단전이 억제에 미치는 영향에 관한 연구
이규섭,이재현,정진형,Lee, Kyu-Seop,Lee, Jae-Hyung,Chung, Chin-Hyung 대한치주과학회 1993 Journal of Periodontal & Implant Science Vol.23 No.1
After periodontal surgery, the potential healing responses were occurred by interaction among junctional epithelium, gingival connective tissue, alveolar bone and periodontal ligament. The only cell that created periodontal regeneration was derived from periodontal ligament. The aim of the study was to evaluate the regenerative effects of the collagen membrane($collacote^{\circ}C$) and autogenous connective tissure graft with periosteum. Experimental periodontitis were created in furcation area of 4 adult dogs with bone removal and gutta percha packing. After 6 weeks later, the gutta percha was removed and experiment was performed divided by 3 groups. 1) Flap operation(control group). 2) Flap operation with collage membrane(Experimental group I). 3) Flap operation with autogenous connective tissue graft with periosteum (Experimental group II). After dogs were sacrificed after two and three weeks, specimens were prepared and stained with hematoxylin-eosin and masson-trichrome stain for light microscopic study. The results were as follows : 1. In all gruoups, connective tissue compartments were increased from two to three weeks especially in experimental group I. 2. Collagen membrane and connective tissue were increased collagen deposits of periodontal ligament. Therefore collagen fiber attached to tooth surface was seen. 3. In al experimental groups, newly forming alveolar bone was seen. 4. Collagen membrane and connective tissue were which prevented proliferation of epithelium, aided connective tissue new attachment and influenced periodontal regeneration.
이규섭,박재범,송승한,오상하,강낙헌,Lee, Kyu-Seop,Park, Jae Beom,Song, Seung Han,Oh, Sang Ha,Kang, Nak Heon 대한두개안면성형외과학회 2013 Archives of Craniofacial Surgery Vol.14 No.2
Except for special situations, it is generally agreed that best results in the treatment of facial fractures is expected if reduction is done within the first 2 or 3 weeks after injury. We reduced facial bone fractures at 4 to 7 weeks after trauma. A 44-year-old female patient underwent open reduction for her right zygomaticomaxillary complex fracture at 7 weeks after injury. A 59-year-old female patient underwent surgery for the right mandible body and left parasymphysis fractures at 4 weeks after injury. Using traditional approaches, granulation tissue and callus were removed from the fracture sites, and malunited fracture lines were separated by a small osteotome. We reduced the displaced fractured zygoma and mandible to their normal anatomical positions and fixed them using titanium plates. No complications such as asymmetry, malunion, malocclusion, or trismus were seen. Unfavorable asymmetric facial contours were corrected, and we obtained good occlusion with favorable bony alignment. The functional and aesthetic outcomes were satisfactory. Through removal the callus and limited osteotomy, a successful approach to the previously fractured line was possible, and an exact correction with symmetry was obtained. This method can be a good option for obtaining good mobility and clinical results in treating delayed facial bone fractures.
폐경 유무에 따른 대사 증후군의 구성 요소와 유병률의 차이
이규섭 ( Kyu Sup Lee ),김승철 ( Seung Chul Kim ),정주은 ( Ju Eun Jung ),주종길 ( Jong Kil Joo ),손정빈 ( Jung Bin Son ) 대한폐경학회 2012 대한폐경학회지 Vol.18 No.3
Objectives: Metabolic and endocrinologic alterations is developed at menopausal transition of women and these alterations can have an effect on prevalence of metabolic syndrome. Therefore, we evaluated the prevalence of metabolic syndrome and differences of components as menopausal status of women who visited our health screening clinic. Methods: We surveyed body sizes, blood pressures and other several blood tests from January 2006 to December 2010 in Pusan National University Hospital by retrospectively reviewing medical records. These results were compared as presence of metabolic syndrome and menopausal status. Differences of the components of metabolic syndrome as the menopausal status and occurrences of metabolic syndrome as the age and the menopausal status are investigated. Results: In premenopausal and postmenopausal women, the prevalence of metabolic syndrome were 8.69% and 21.85%, respectively. More body weight, high body mass index and cholesterol were checked in women who have metabolic syndrome irrespective of menopausal status. Low high density lipoprotein was most prominent component of metabolic syndrome irrespective of menopausal status. Hypertension and high blood sugar were showed meaningful proportions in postmenopausal women. The prevalence of metabolic syndrome was unrelated to the menopausal status by regressively analyze, but meaningfully increased related to aging. Conclusion: Menopausal alterations restrictively effect on occurrence of metabolic syndrome and aging is more effect on it. But more detailed and additional studies are needed about determining the relation of metabolic syndrome in women who surgically menopaused and receiving hormone therapy. (J Korean Soc Menopause 2012;18:155-162)
이규섭(Lee Gyu seop),서창배(Seo Chang bae),조성민(Cho Seong Min),장지웅(Jang Ji Woong),서승현(Seo Seung Hyun) 한국통신학회 2021 한국통신학회 학술대회논문집 Vol.2021 No.11
본 논문은 SMART-MC 환경에서 무방비로 노출되는 데이터에 대한 키 관리 및 데이터 보안 시스템을 제안한다. AES 와 RSA 기반의 하이브리드 암호를 사용하여 기밀성을 보장하고, HMAC 및 인증서를 사용하여 무결성 보장 및 신원 증명을 통해 무분별한 접근을 제한한다.
이규섭(Gyu-Seop Lee),오재응(Jae-Eung Oh),전종균(Chong-Keun Chun) 대한기계학회 2011 대한기계학회 춘추학술대회 Vol.2011 No.10
It is very important to control the vibration transmitted from external utilities and the transient response due to the internal sources for the precision equipment, which is very sensitive to the vibration environment. The anti-vibration tables that use air springs have been widely used due to their excellent isolation performance, but the systems with high flexibility have the critical problem of large transient response by the impulsive force of the moving mass in operation of the equipment. In this paper, the integrated vibration control system is proposed, which is combined the air springs with the MR damper and electro-magnetic actuator in order to satisfy the performances of isolation and vibration reduction simutaneously.