LASER를 이용한 FRENECTOMY

김용기,김종수,김용철 大韓小兒齒科學會 1996 大韓小兒齒科學會誌 Vol.23 No.3

Laser is getting more attention from increasing numbers of dental clinicians by its own several unique characteristics : precision, hemostasis, and bactericidal capacity. It also provides patients with several advantages of minimal tissue damage, faster healing with less postoperative pain and minimal use of local anesthetics. Labial or lingual frenectomies were performed successfully in three pediatric patients using Nd-YAG laser. When compared to the conventional scalpel method, less local anesthetics were needed and the bleeding control was so excellent that any suture was not necessary. The operation sites were completely healed without any infection or complication and discomfort from swelling or pain was not noted in all cases throughout the healing process.

數種의 弗素製材에 의해 前處置 再植 齒牙의 祖織學的 反應에 關한 硏究

金鐘秀,金殷淑,金鐘好,金容琦 大韓小兒齒科學會 1997 大韓小兒齒科學會誌 Vol.24 No.2

The effect of fluoride pretreatment upon root resorption after delayed replantation was studied in beagle dogs. Upper and lower incisors were extracted and bench dried for 45minutes. 1% Stannous Fluoride solution, 2% neutral sodium fluoride gel and 1.23% acidulated phosphate fluoride gel were used for the pre-treatment of replanted root surface in the experimental groups. Replantation was done with no treatment in control group. After of an experimental periods 3 weeks, animals were sacrificed by perfusion followed by sample preparation. A histomorphometric method was applied for evaluation of tissue reactions observed in each group under light microscope. Scanning electron microscopic observation was done to find out any different surface topography between groups. The results were as follows: 1. Fluoride-treated groups showed in general the better healing patterns than untreated control group. 2. Comparisons between three experimental groups revealed the superiority of APF-treated group over the other groups in terms of tissue healing reaction by showing the highest frequency in uncomplicated healing pattern and surface resorption and the lowest in inflammatory resorption, but with no statistical significance(p>.05) 3. Scanning elecron micrographs showed the irregular distribution of resorption cavitie s and the attached bone of variable size and shape in all groups. 4. It can be conclued that the types of fluoride did not have significant impact on the early tissue reactions after delayed replantation under the condition of the present experiment.

흰쥐에서 간담관 장애가 신장에 미치는 초미세 형태학적 연구

김용임,김일,이길부,최종범,기근홍,김용일,서재홍 朝鮮大學校 附設 醫學硏究所 1991 The Medical Journal of Chosun University Vol.16 No.1

It has been well-known that biliary cirrhosis with concomittant impairment of renal functions were occured after prolonged obstruction of biliary tract. In the present study, an attempt was made to investigate the mechanism of impaired renal function and the ultrastructural change of the kidney in rats, ligated the common bile duct for 21, 28 and 50 days in order to induce secondary biliary cirrhosis. The results obtained were as follows ; 1. Secondary biliary cirrhosis was produced evidently 28 days after ligation of common bile duct. Prominent proliferations of bile ducts and chronic inflammatory cell infiltrations were seen in pehportal area. 2. 28 and 50 days after ligation of common bile duct, show swelling and degeneration of mitochondria, microcystic formation and lysis of endoplasmic reticulum in the hepatocytes. Loss of microvilli in the bile ductules were noted. 3. Focal fusions, edema and bleb formations of foot processes were seen. Electron dense materials with variable size and global shape were found in foot process, 21, 28 and 50 days after ligation of common bile duct. 4. There were slightly thickening of renal glomerular basement membrane with hump in the subendothelial and widening of the mesangial matrix, 28 days after ligation of common bile duct. 5. There were moderately thickening of renal glomerular basement membrane and widening of the mesangial matrix with electron dense deposits, 50 days after ligation of common bile duct. From the above findings of electron microscopy, this study revealed electron dense deposits on renal glomerular mesangium of the rats as a results of experimental secondary biliary cirrhosis by ligation of common bile duct. Also severe hepatic injury due to swelling or lysis of rough endoplasmic reticulum and destruction of bile ductules resulted in deposited electron dense materials due to inhibition of excretion of immune complex through hepatobiliary tract, therefore this change indicated that immuncomplex could be deposited on renal glomerular mesangium.

자동화학분석기 Hitachi 736-20과 Parallel^(�)의 비교 검토

김순기,김용남,박용성,이기문 대한임상병리사협회 2001 대한임상병리사회지 Vol.21 No.1

편측관상봉합 조기유합증 환자에서 컴퓨터단층촬영을 이용한 두개 기저부의 술후 변화 예측

김영석,김진형,김용욱,유선국,이혜연,김기덕,박병윤 大韓成形外科學會 2004 Archives of Plastic Surgery Vol.31 No.2

Drosophila quinaria Species Group의 遺傳的 近緣關係

成耆昌,金正洙,金大鎰,金彧,金溶聲 성균관대학교 기초과학연구소 1985 論文集 Vol.36 No.2

The genetic relatedness among the Korean Drosophila quinaria species group, including D. nigromaculata, D. unispina, D. brachynephrose, and D. angularis, has been examined by using horizontal starch gel electrophoresis. The results showed that none of the ten isozyme patterns examined for these four species was identical. The average genetic similarity among the four species was found to be 0.440. The similarity among three species. D. unispina, D. brachynephrose, and D. angularis was 0.466. The relatedness was found to be closest between D. nigromaculata and D. unispina, showing 0.640. D. nigromaculata and D. angularis showed relatedness of 0.258. The results suggested that these four species appear to be genetically related at the level of sibling species. The percent polymorphism in D. brachynephrose was found to be 76.9%, showing significant genetic variations.

두개골의 3차원 영상 분석을 위한 전산화단층촬영 방법의 비교 : 상층 두께가 3차원 영상의 계측에 미치는 영향

정호걸,김기덕,박혁,김동욱,정해조,김희중,유선국,김용욱,박창서 대한구강악안면방사선학회 2004 Imaging Science in Dentistry Vol.34 No.3

Purpose : To evaluate the quantitative accuracy of three-dimensional (3D) images by means of comparing distance measurements on the 3D images with direct measurements of dry human skull according to slice thickness and scanning modes. Materials and Mathods : An observer directly measured the distance of 21 line items between 12 orthodontic landmarks on the skull surface using a digital vernier caliper and each was repeated five times. The dry human skull was scanned with a Helical CT with various slice thickness (3, 5, 7 mm) and acquisition modes (Conventional and Helical). The same observer measured corresponding distance of the same items on reconstructed 3D images with the internal program of V-works 4.0 (Cybermed Inc., Seoul, Korea). The quantitative accuracy of distance measurements were statistically evaluated with Wilcoxons’ two-sample test. Results : 11 line items in Conventional 3 mm, 8 in Helical 3mm, 11 in Conventional 5 mm, 10 in Helical 5 mm, 5 in Conventional 7 mm and 9 in Helical 7 mm showed no statistically significant difference. Average difference between direct measurements and measurements on 3D CT images was within 2 mm in 19 line items of Conventional 3 mm, 20 of Helical 3 mm, 15 of Conventional 5 mm, 18 of Helical 5 mm, 11 of Conventional 7mm and 16 of Helical 7 mm. Conclusion : Considering image quality and patient’s exposure time, scanning protocol of Helical 5 mm is recommended for 3D image analysis of the skull in CT.

지난 4년간 학회지 "신경정신의학" 심사 평가보고

오병훈,권준수,남궁기,김승현,지익성,김창윤,하규섭,박원명,김성곤,오강섭,김정범,이수정,정한용,이창욱,박용천,이영문,김세주,이병욱 大韓神經精神醫學會 2005 신경정신의학 Vol.44 No.5

Four Years Reports of "Journal of Korean Neuropsychiatric Association" during 2001 to 2005 were evaluated by 18 Editorial Board of Korean Neuropsychiatric Association. We investigated the articles to specific fields and rejection rate etc. by different section chiefs. Although several problems concerning review time duration and rejection guideline issues indicated but generally all reviewer processes proved relatively clear and concise criteria. Through these objective and systematic evaluation Processes, "Journal of Korean Neuropsychiatric Association" will develop a good journal.

정신분열병 환자의 가족력 유무와 연성 신경학적 특성

김은남,장기용,강병조 대한생물치료정신의학회 1995 생물치료정신의학 Vol.1 No.2

본 연구는 정신분열병 환자들의 연성 신경학적 증상을 알아보고 또한 가족력 유무에 따른 연성 신경학적 증상의 차이를 살펴보기 위한 것이다. 1995년 7월부터 동년 10월까지 국립부곡정신병원에 입원치료중이며 DSM-IV 진단 기준에 의해 정신분열병으로 진단된 환자를 대상으로 하였다. 이중 병록지와 환자 가족의 정보를 근거로 하여 1차 인척 중에서 정신분열병의 기왕력이 있는 환자들을 가족력이 있는 환자군으로 분류하였다. Buchanan과 Heinrich의 신경학적 평가척도의 한국어판을 이용하여 가족력이있는 정신분열병 환자군20명, 가족력이 없는 정신분열병 환자군 20명 그리고 정상대조군 20명 사이의 연성 신경학적 이상소견을 비교하였다. 이 연구의 결과는 다음과 같다. 1) 연성 신경학적 평가척도의 총점은 정신분열병 환자군은 23.93±6.66, 정상대조군은 3.55±2.46으로 두 군간에 유의한 차이를 나타내었다(P<0.0001). 정신분열병 환자군은 감각통합 영역, 운동조정 영역, 복합활동순서화 영역, 그리고 기타 영역에서 정상대조군 보다 유의하게 높은 점수를 나타내었다(P<0.0001) 2) 연성 신경학적 이상 소견은 정신분열병 환자의 가족력의 유무와 유의한 상관관계는 없었다. 가족력이 있는 환자들이 신경학적 평가척도의 모든 영역에서 가족력이 없는 환자들보다 평균 점수가 높게 나타났으나 통계적으로 유의한 차이는 없었다. 이상의 결과에서 정상대조군보다 정신분열병 환자군에서 연성 신경학적 이상소견이 많이 나타났다. 이는 생물학적 표지로서의 연성 신경학적 증상의 중요성을 보여준다고 할 수 있다. 그러나 가족력 유무에 따른 연성 신경학적 이상 소견에 유의한 차이가 없었으므로 이 생물학적 표지가 trait marker인지 state marker인지는 좀더 연구를 해 보아야 할 것 같다. This study was performed to assess neurologic soft sign(NSS) in schizophrenics and to know the relationship between NSS and family history of schizophrenia. All Patients were hospitalized in Bugok National hospital during the period from July, 1995 to October, 1995 and diagnosed as schizophrenia based on DSM-IV criteria. Schizophrenics were classified as familial schizophrenics if at least one first-degree relative had a clear history of schizophrenia, based on review of any medical records and reports of family informants. The authors evaluated NSS using the structured tool for measuring neurological abnormalities, Neurological Evaluation Scale-Korean Version(NSE-K). A comparison of NSS score was made among three groups subjects consisting of 20 familial schizophrenics, 20 non-familial schizophrenics and 20 normal controls. The results were as follows : 1) the schizophrenics were significantly more impaired than normal controls on total scores of sensory integration, motor coordination, sequencing of complex motor acts and other areas(P<0.0001). 2) NSS scores were not correlated with family history of schizophrenia. Mean item scores of familial schizophrenics were higher than non-familial schizophrenics but there were statistically no differences between two groups. these findings suggest that abnormal NSS may be one of possible biological markers of schizophrenics. But there were statistically no differences in NSS scores between familial schizophrenics and non-familial schizophrenics. therefore, A further study is needed to investigate whether NSS is a trait marker of schizophrenics.

Cerebrovascular Complications of Rhinocerebral Mucormycosis

김용재,박기덕,최경규,구혜수 이화여자대학교 의과대학 2003 EMJ (Ewha medical journal) Vol.26 No.2

모균증은 진균 감염증의 하나로 급성으로 진행되며 사망률이 높은 질환이다. 다양한 임상 양상으로 나타나며 두부 모균증이 가장 흔한 형태이다. 두부 모균증의 임상 경과는 감염의 해부학적 위치에 따라 두통, 안면 부종, 압통부터 안구 돌출, 안구 마비, 시력 소실 등 다양하게 나타난다. 모균증은 혈관계를 잘 침범하며, 두부 모균증의 경우 해면 정맥동의 침범뿐 아니라 아주 드물게 내 경동맥이나 두강 내 혈관을 침범하는 경우도 있다. 저자들은 뇌혈관 질환이 동반된 두부 모균증의 드문 합병증 3예를 경험하였기에 문헌 고찰과 함께 보고하는 바이다.