혈압 상승으로 인한 의식하 진정 요법의 실패 -증례보고-

고세욱,Koh, Se-Wook 대한치과마취과학회 2007 Journal of Dental Anesthesia and Pain Medicine Vol.7 No.2

Sedation is often indicated for the relief of anxiety for outpatient oral surgery. In combination with local anesthesia, it is safe and effective method of treatment. However, it is not always effective in allowing the physician to complete the planned oral surgery procedure. On occasion, a procedure is left unfinished due to patient combativeness and discomfort and hypertension in spite of increase in sedative doses. Episodic increases in blood pressure were most commonly caused by light anesthesia or sedation and by the patient's experience of pain during treatment. Female patient was 42 years old. blood pressure is 150/90 mmHg. Extraction and implant surgery was done under IV sedation. During seadtion, her blood pressure was increased (200/100 mmHg). Surgery was stopped. She was done monitoring blood pressure. The blood pressure was decreased to 130/90 mmHg. Sedation was failed due to significant hypertension. Blood pressure is seldom increased during sedation but we should evaluate the patient's medical history and know guideline for hypertension crisis.

신속 조형 모형을 이용한 악 교정 수술의 정확성 예측에 관한 연구

고세욱,오승환,민승기 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.4

Rapid Prototyping(RP) models in facial asymmetry patients are used mainly for assisting diagnosis, planning treatment. It provides an easy way to measure discrepancies due to asymmetry on the model directly, and opportunity to study the bony structures of the patient and to manipulate them as required before the actual surgery. The purpose of this study was to evaluate the surgical prediction of orthognathic surgery using RP model in facial asymmetry patients. In 26 patients with facial asymmetry. We compared patient cephalogram and skull posterior-anterior view with RP model after surgery. Surfery methods were sagittal split ramus osteotomy(SSRO), intraoral vertical ramus osteotomy(IVRO), inverted L osteotomy, Le FortⅠosteotomy. Difference of two groups was analyzed and compared statistically. The results were no difference between patients and RP model is useful in selection of surgery method and prediction of surgery. In facial asymmetry, we knew that IVRO in mandibular surgery is better method than others.

신속 조형 모형을 이용한 악 교정 수술의 정확성 예측에 관한 연구

고세욱,오승환 원광대학교 치의학연구소 2003 圓光齒醫學 Vol.12 No.1

Rapid Prototyping(RP) models in facial asymmetry patients are used mainly for assisting diagnosis, planning treatment. It provides an easy way to measure discrepancies due to asymmetry on the model directly, and opportunity to study the bony structures of the patient and to manipulate them as required before the actual surgery. The purpose of this study was to evaluate the surgical prediction of orthognathic surgery using RP model in facial asymmetry patients. In 26 patients with facial asymmetry, We compared patient' cephalogram and skull posterior-anterior view with RP model after surgery. Surgery methods were sagittal split ramus osteotomy(SSRO), intraoral vertical ramus osteotomy(IVRO), inverted L osteotomy, Le Fort I osteotomy. Difference of two groups was analyzed and compared statistically. The results were no difference between patients and RP model statistically. In surgical methods, IVRO was better similar results than other methods. RP model is useful in selection of surgery method and prediction of surgery. In facial asymmetry, we knew that IVRO in mandibular surgery is better method than others.

정보보안제품 투자 우선 순위에 대한 위수탁자 의견의 비교

고세욱(Se-wook Koh),김태성(Tae-sung Kim) 한국경영학회 2018 한국경영학회 통합학술발표논문집 Vol.2018 No.8

사회네트워크분석을 통한 시니어 기술창업교육참여자들의 네트워크 활성화 사례 연구

고세욱(Koh, Sei-Uk),박상혁(Park, Sang-Hyeok),박정선(Park, Jeong-Seon) 한국창업학회 2018 한국창업학회지 Vol.13 No.5

본 연구의 목적은 정부의 주도하에 진행되고 있는 시니어 대상 창업교육과정 참가자들의 교육 전‧후 사회네트워크 분석을 통해 네트워크 활성화를 위한 창업교육 프로그램의 필요성을 제시함에 있다. 본 연구는 경남 G대학에서 주관한 시니어기술창업교육을 수료한 대상자 60명을 선발하여 교육 전‧후 친밀도를 분석하고, 참여자들간의 전략적 제휴 정도를 포함하는 관계변화를 분석하였다. 경남 G대학의 시니어기술창업교육은 기술교육과 더불어 참여자 네트워크 형성에 초점을 두어 액션러닝을 기반한 교육을 기획, 진행한 특징을 가지고 있다. 본 연구는 대상자들 간의 관계에 대해 설문(있다/없다)을 진행하고, 데이터를 수집 및 정제하여 사회네트워크 중심성을 분석하였다. 네트워크 중심성은 네트워크 내 영향력을 분석할 수 있는 요소이다. 중심성이 높다는 것은 네트워크 내에서 업무와 관련한 영향력과 명성도가 높다는 것과 의사결정 과정에 중요한 영향을 미친다는 것을 의미한다. 구체적으로 본 연구는 첫째, 사회네트워크 분석을 통해 교육전과 교육후 친밀도 기반 네트워크 변화를 분석하고 통계적으로 그 의미를 해석하였다. 둘째, 창업교육 수료생이라는 대상의 특성을 고려하여 창업단계에서 네트워크 내의 참여자 간에 이루 어질 수 있는 전략적 제휴 정도를 분석하였다. 셋째, 전략적 제휴를 기반으로 분석한 자료에서 네트워크 중심성이 높은 대상자들을 추출하여 인터뷰를 진행하였다. 인터뷰를 통해 추가적으로 확보한 구체적 사례로 서베이 연구를 보완하였다. 연구 결과, 친밀도 기반 네트워크의 변화는 통계적으로 유의미했으며, 인터뷰 결과, 농업기반 창업의 초기단계에서 이루어질 수 있는 전략적 제휴 사례를 확인할 수 있었다. 전략적 제휴 네트워크에서 중심성이 높은 참여자들은 모두 경남 G대학의 시니어기술창업스쿨 교육과정 중 형성된 네트워크를 창업단계에서 절대적으로 필요한 무형자산으로 생각할 뿐만 아니라 네트워크의 중요성을 인지하고 있었다. 본 연구결과는 시니어를 위한 창업교육프로그램 설계와 창업활성화를 위한 전략의 설계 방향으로 유용하게 활용될 것으로 기대한다. 마지막으로 본 연구의 한계점과 향후 연구방향을 논의하였다. The purpose of this study is to present the necessity of entrepreneurship education program for network activation through analyzing pre - and post - social networks of the participants in senior technology start-up education. We selected 60 people who completed the senior technology start-up education which was supervised at Gyeongnam G university, analyzing not only density (intimacy) before and after education but also the change in the relationship including the degree of strategic alliances among the participants. Senior start-up education at Gyeongnam G University is characterized by action learning focusing on the formation of network among participants as well as technical education. We conducted the questionnaires on the relationship with the subjects’ answers of yes or no, gathered and refined the data, analyzing the social network centrality. Network centrality measures the degree of influence in the network. The high centrality means that it has a significant influence on the decision making process, and that the influence and reputation associated with work in the network are also high. Specifically, we first analyzed the change of intimacy-based network before and after education through social network analysis. Secondly, we analyzed the degree of strategic partnership (alliances) that can be carried out among participants in the network at the start-up stage. Thirdly, in the data analyzed on the strategic alliance, we selected to interview the people of high network centrality. We complemented the analyses and results of survey data with the concrete examples of interviews. As the result of survey data analyses, changes in intimacy-based network were statistically significant, while we were able to confirm the cases of strategic alliances that can be done in the early stages of farm foundation by the interviews. All participants of high centrality in the strategic alliances network regarded the network formed in the senior technology start-up education program as an absolutely necessary intangible asset at the inception stage, recognizing the importance of the network. The results would imply the desirable directions for designing the start-up education program for seniors as well as the strategy of activating start-ups. Lastly, we discussed the limitations and future research directions.

악관절에 발생한 연골종증 증례

고세욱(Se-Wook Koh) 대한턱관절교합학회 2009 구강회복응용과학지 Vol.25 No.3

골유착성 치과 임플란트의 생존율에 관한 임상적 연구

최지연,고세욱,류현욱,Choi, Ji-Yeon,Koh, Se-Wook,Ryu, Hwun-Wook 대한악안면성형재건외과학회 2009 Maxillofacial Plastic Reconstructive Surgery Vol.31 No.4

Objectives: The aim of the present review was to evaluate survival rate and various factors associated with survival of osseointegrated implants. Patients and methods: The clinical comparisons were performed to evaluate survival rate of 794 endosseous implants that had been inserted between 2004 through 2008 in relation to sex and age of patients, position of implant, implant system and surface characteristics, length and diameter of implant, and bone graft technique. Results: The survival rate of implant was 94.3% in posterior area of maxilla and 98.6% in posterior area of mandible by position of implant, a statistically significant difference. As to diameter of implant, survival rate was 98.4% between the 4.0 and 4.5 mm and 75.0% in larger than 5.0 mm, that was statistically significant difference. There was a statistically significant difference regard to bone graft and surgical technique. The implant survival rate was 89.0% in a placement site which performed sinus lifting, and in case of implant placement with guided bone regeneration technique and without bone grafting was 97.6% and 100% each. Conclusion: According to these findings, this study establishes a relationship between survival rate of implant and position, surface characteristics, diameter of implant and bone graft technique.

하악골에 발생한 유표피낭종: 증례보고

온병훈,고세욱,박슬지,지영덕,Ohn, Byung-Hun,Koh, Se-Wook,Park, Seul-Ji,Chee, Young-Deok 대한악안면성형재건외과학회 2011 Maxillofacial Plastic Reconstructive Surgery Vol.33 No.6

Epidermoid cyst is a cystic form of teratoma and believed to be derived from trapped embryonic cells along the lines of embryonic closure. A 28-year-old woman presented with a painless swelling over the left mandibular area. On panoramic view, the mandible revealed a $5.5{\times}2.0\;cm^2$ multilocular radiolucent lesion of the left mandibular body and a computed tomography scan showed expansion of both the buccal and lingual plates in the same area. Microscopy found stratified squamous epithelium of the cystic wall and cystic contents of keratinized material. The histological diagnosis wasan epidermoid cyst. The most common location of epidermoid cyst at the head and neck is in the orbit (47%), followed by the mouth floor (23%) and the cervical area (9~24%), but in the jaw bone, it is considered very infrequent. We report the uncommon epidermoid cyst in the mandibular body that had a good healing outcome after treatment with a conservative marsupialization during the 40 months follow-up.

골유도재생술과 동시에 식립한 임플란트의 변연골 흡수량에 대한 후향적 고찰

박슬지,선화경,고세욱,지영덕,Park, Seul-Ji,Seon, Hwa-Gyeong,Koh, Se-Wook,Chee, Young-Deok 대한악안면성형재건외과학회 2012 Maxillofacial Plastic Reconstructive Surgery Vol.34 No.6

Purpose: The purpose of this study was to evaluate marginal bone loss of the alveolar crest on implants with or without guided bone regeneration and variables that have influenced. Methods: The clinical evaluation were performed for survival rate and marginal bone loss of 161 endosseous implants installed with guided bone regeneration (GBR) in 83 patients from September 2009 to October 2010 in relation to sex and age of patients, position of implant, implant system, length and diameter of implant. Study group (n=42) implant with GBR procedure, control group (n=41) implant without GBR technique. Simultaneous GBR approach using resorbable membranes combined with autogenous bone graft or freeze-dried bone allograft or combination. Radiographic examinations were conducted at healing abutment connection and latest visit. Marginal bone level was measured. Results: Mean marginal bone loss was 0.73 mm in study group, 0.63 mm in control group. Implants in maxillary anterior area (1.21 mm) were statistically significant in study group (P<0.05), maxillary posterior area (0.81 mm) in control group (P<0.05). Mean marginal bone loss 1.47 mm for implants with diameter 3.4 mm, 0.83 mm for implants of control group with diameter 4.0 mm (P<0.05). Some graft materials showed an increased marginal bone loss but no statistically significant influence of sex, implant type or length. Conclusion: According to these findings, this study demonstrated the amount of marginal bone loss around implant has maintained a relative stable during follow-up periods. We conclude that implants with GBR had similar survival rate and crestal bone level compared with implants in native bone.

안와골절의 외과적 접근에 대한 증례보고

민승기,이은택,오승환,이동근,고세욱,송종민,최성림 대한악안면성형재건외과학회 2002 Maxillofacial Plastic Reconstructive Surgery Vol.24 No.3

The Orbital fracture which is often combined with midface fracture can cause decreased visual acuity, limitation of eyeball movement, diplopia, enophthalmos, etc. Traumatic orbital fracture causes change of orbital volume, results in diplopia and enophthalmos thus, accurate repositioning of displaced bone and reconstruction of orbital defect with autogenous materials(cranial, rib, iliac bone, cartilage and fascia lata) or alloplastic materials(gelatin film, polyglactin mesh, methylmethacrylate, Teflon, silicone, Supermid, hydroxyapatite and metal). The key point of reconstruction of orbit is accurate repositioning of displaced orbital floor, lateral, medial orbital wall and sufficient bonegraft in anatomical defect. As this cases, we obtained good results through transconjunctival and coronal approach who were required orbital reconstruction. Also, we accurately diagnosed orbital fracture with C.T., 3D model and good result for orbital reconstruction with sufficient parietal block bone graft during average 16.8 months follow-up.