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.

이부성형술에서 강선 고정술과 소강판 고정술간의 안정성에 관한 임상적 연구

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

Performing genioplasty for greater stability of the changed chin position, incision, dissection, osteotomy design and fixation are important technical considerations. Basically, wire osteosynthesis method has been used in genioplasty, but plate/screw osteosynthesis has been introduced in rigid fixation. The purpose of this study is that comparison of stability between wire and plate/screw osteosynthesis in genioplasty. In this study, the genioplasty groups were divided into three groups ; advanced genioplasty group, reduction genioplasty group, advanced with reduction genioplasty group. In wire osteosynthesis groups, there were 15patients who had advanced genioplasty, 13patients who had reduction genioplasty, and 12patients who had advanced with reduction genioplasty. In plate/screw osteosynthesis groups, there were 15patients who had advanced genioplasty, 13patients who had reduction genioplasty, and 13patients who had advnaced with reduction genioplasty. Lateral cephalograms ; pre- and postoperatively, postoperatively 1months, and at the latest follow-up(>6months); were analyzed by linear measurement to evaluate changes in position(hard tissue B, Pogonion point) and compare relapse between both groups.

설계추진단계별 설계VE의 효율적 적용 방안

이승훈,서용칠,구교진,현창택 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1

The purpose of this study is to propose an efficient design-VE job plan and applicable methods in each phase of design process. This is for more effective and practical use of VE in design phase. This study focuses on differences of the VE target selection phase and function analysis phase in each phase of design process. In the phase of preliminary design, conceptual sketch, size, use, or major spaces of project are selected for VE target and function assessment step is skipped because present cost and function cost cannot be produced easily in early in early phase of design. At the end of preliminary design phase, function review phase is added which consists of function satisfactory indices review step and unsatisfactory function removal step.

상악 제3대구치 발거후 발생한 광범위한 피하기종

이은택,민승기,오승환,이동근 大韓顎顔面成形再建外科學會 2003 Maxillofacial Plastic Reconstructive Surgery Vol.25 No.1

Subcutaneous air emphysema is a relatively uncommon phenomenon. It has been reported in both the medical and dental literature following such various procedures as rectal biopsy, nasogastric intubation, radical neck dissection, tonsillectomy, adenoidectomy, root canal treatment, dental restoration and extraction of maxillary and mandibular teeth. The most common cause involves extraction of mandibular third molar. Subcutaneous emphysema of the head, neck and thorax is a swelling caused by introduction of air into the space of the connective tissue. The clinical signs are local swelling, tenting of the skin, and crepitation on palpation. In extreme casesk, air has been reported to pass through the masticatory space into the parapharyngeal and retropharyngeal space, and penetrate into the mediastinum. If the inflowing air contains bacteria, serious infection may ensue. The first case of subcutaneous emphysema associated with a dental procedure was first reported in 1900. This emphysema is a often limited only to the spaces of head and neck, but also can involve deeper structure. This case is diffuse subcutaneous emphysema following maxillary third molar extraction with a high-speed drill.

자궁경부의 상피내암 조직내 In Situ Hybridization에 의한 Human Papillomavirus DNA의 검색 및 Typing

이상숙,김기권,정재홍,김택훈,이태성,진승원,손우익 대한의학협회 1990 대한의학협회지 Vol.33 No.1

여성 정체성의 불확정성에 관한 연구 : 고정희 詩를 중심으로

이승이,김영택 목원대학교 어문학연구소 1999 어문학연구 Vol.8 No.1

요추부 추간판탈출증에서 경피적 자동수핵제거술 치료의 예후 인자

이승호,문창택,장상근 대한신경외과학회 1994 Journal of Korean neurosurgical society Vol.23 No.12

Percutaneous automated lumbar discectomy as it is now practiced appears to be an extremely safe procedure. One hundred fourty eight patients with lumbar disc herniation were treated with automated percutaneous lumbar discectomy(A.PL.D.). The postoperative results in 118 patients were evaluated at more than 3 months after the operation. Total satisfactory result was 74% excellent 16%, good 58%, fair 22%, poor 4% by Macnab' s criteria. For further satisfactory result, more meticulous crteria is needed. The results indicated that several prognostic factors were considered : 1) less than 30 years of age, 2) more than 4ml of aspirated disc volumn, 3) L4-5 of disc level, 4) follow up X-ray change(59%), but no CT change and possible MRI change.

수용성 방향족 폴리이민의 합성과 자기집합 다층박막의 형성

이택승 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.1

New water-soluble conjugated aromatic polyimine containing sulfonate groups have been synthesized by means of polycondensation reaction between corresponding diamines and dialdehyde at room temperature. The polymers synthesized were soluble in water and N,N-dimethylformamide, giving colored solution. Self-assembled multilayer films consisting of the each polyimine as a polyanion and poly(diallydimethylammonium chloride) as a polycation were fabricated successfully by alternate deposition in corresponding aqueous solutions.

불소함유 소와열구전색재 도포 후 법랑질의 불소농도 변화에 관한 연구

이승택,최유진 慶熙大學校 齒科大學 1995 慶熙齒大論文集 Vol.17 No.2

The purpose of this study was to verify quantitatively the incorporation of fluoride into human enamel from fluoride-containing sealants and to compare the difference in the degree of enamel fluoride uptake and characteristics of fluoride releasing patterns between two fluoride-containing sealants with different releasing mechanisms The author used two fluoride-containing sealants, Teethmate-F releasing fluoride by hydrolysis and Fluroshield releasing fluoride by anion exchange, and one non-fluoridated sealant, Concise. Sealants were applicated on smooth buccal surface of each enamel block. 4 enamel blocks from a pair of pre-molars from same person were basic experimental unit, and 10 pairs of pre-molar from same person were used in each experiment. 2 enamel blocks were applicated by Teethmate-F and Fluroshield, and the rest 2 blocks were used as control, one of them was applicated by Concise (Control-Concise). Acid-etching as a conventional step in sealant application was not performed. During 4 weeks after application of sealants, the concentration of released fluoride ion from sealants was measured and, at the end of experimental period, enamel fluoride concentration was measured at three successive depth. The results obtained.. Were as follows; 1. The release of fluoride ion from two fluoride-containing sealants decreased as time passed and, 4 weeks after application, Teethmate-F released 0.13 jtgF/cm /day and Fluroshield released 0.17 itgF/cm /day. The total amount of fluoride released from Fluroshield(28.82 itgF/cm) was 2.6 times that of from Teethmate-F(10.96 pg/em2). Especially, during first 24 hours, Fluroshield released 62%(17.91 ptg/cm2/day) of total amount released for 4 weeks and it was about 10 times that of Teethmate-F(1.86 ug/cm2/day). 2. The enamel fluoride concentrations 4 weeks after application of Teethmate-F and Fluroshield were 2328 ± 177 and 2539±177 ppm at 5 pm enamel depth, 1894±170 and 1927±186 ppm at 10 gm enamel depth, and 975±140 and 950±116 ppm at 20 ,Um enamel depth, respectively. 3. Enamel fluoride uptake from Fluroshield was greater than from Teethmate-F only at 0-5um enamel depth (p <0.05) and there were no statistically significant differences between two fluoride-containing sealants at any other enamel depth. 4. More than 50% of fluoride incorporated into enamel was in the form of apatitic fluoride and there was no statistically significant difference in increased degree of apatitic fluoride between two fluoride-containing sealants.

과학계발활동 프로그램 적용이 과학성적 우수아의 과학 탐구 능력에 미치는 효과

이승택,김진국,정재구,정진우 한국초등과학교육학회 2005 초등과학교육 Vol.24 No.1

이 연구는 초등학교 과학 성적 우수아를 대상으로 과학계발활동 프로그램의 구성 및 적용이 과학탐구능력에 미치는 효과를 분석하였다. 분석결과, 과학계발활동 프로그램을 적용한 학생들은 적용하지 않은 학생들에 비하여 관찰, 측정, 자료해석, 가설 설정, 변인통제의 과학탐구요소가 더 신장된 것으로 나타났다. 따라서 과학계발활동의 운영은 과학탐구능력의 신장에 효과를 기대할 수 있으므로 교육현장에서 과학교육을 보다 다양하고 수준별로 운영할 수 있는 프로그램의 개발 및 적용 방안을 모색할 필요가 있다. This study organized a Science Improvement Activity Program designed for the excellent students in science in 5th and 6th grades. After application the effect of the program on science process skills was analyzed. The Science Improvement Activity Program was applied to the experimental group as a club activity after school during the semester. The results of this study were as follows: First, the students participated in the Science Improvement Activity showed an increase in the science process skills compared with those who didn't. Second, it was found that the students to whom the Science Improvement Activity Program was applied have improved in enhancing their science process elements of observation, measurement, data analysis, forming hypotheses, and controlling variables. It is expected that the development of activity programs and their active application should be done in order for schools to provide science education according to each student's capacity from various angles.