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이소매복된 하악 제2소구치의 자가치아이식을 이용한 치험례
정윤주,궁화수,최성철,김광철,박재홍 大韓小兒齒科學會 2009 大韓小兒齒科學會誌 Vol.36 No.4
악골내 이소매복된 치아로 인해 유치의 만기잔존, 교합이상과 같은 교정적인 문제가 발생할 경우 그 해결책으로 주기적 관찰, 최소한의 개입, 교정적 견인, 발치, 그리고 환자 자신의 매복치아를 이용하는 자가이식술 등을 들 수 있다. 자가치아이식은 치아를 구강내의 한 위치에서 다른 발치와나 외과적으로 형성된 치조와로 이동시키는 술식으로, 치아가 교정력을 가할 수 없는 위치에 존재하거나 치아 이동에 제한이 있어 통상적인 치료가 불가능할 경우에 발거에 앞서 고려할 수 있는 방법이다. 자가치아이식은 치료기간을 단축시키고, 치근 형성이 완료되지 않은 어린 환자의 경우 이식된 새로운 위치에서 치근 형성이 이루어지며, 새로운 치조골의 형성을 유도할 수 있다. 본 증례는 하악 우측 제2소구치의 매복과 하악 우측 제2유구치의 만기잔존을 주소로 본원에 내원한 11세 여아로, 하악 우측 제2소구치의 매복의 깊이가 깊고, 방향이 교정적 견인에 불리하다는 점, 미성숙 치근 발육 상태와, 만기잔존한 유구치로 인해 공간 상실이 없다는 점 등을 고려하여 자가치아이식을 시행한 뒤, 1년간의 주기적 관찰 결과, 양호한 결과를 얻어 이에 보고하는 바이다. In the case of the impacted teeth, the clinician has to consider development of tooth, site of impaction, eruption path, and cooperation of patient. Treatment options for the management of impacted teeth are separated into four categories: observation, intervention, orthodontic or surgical relocation and extraction. Autotransplantation may be defined as the transplantation of embedded, impacted or erupted teeth, from one site to another in the same individual into extraction site or surgically prepared sockets. Autotransplantation ensures preservation of natural tooth, induction of alveolar bone growth and root development, offers one of the fastest and most economically feasible means in the replacement of young patients' missing teeth. This case presents a malpositioned impacted mandibular premolar of an 11-year-old girl. It was thought that orthodontic traction was difficult because of its unfavorable impacted position. Therefore the tooth was treated by autotransplantation, we can observe good healing pattern during 12 months.
급성 심근경색증에 동반된 승모판 폐쇄부전증의 임상적 특징
정상만,조영일,조화상,유광하,송기호,인행환 건국대학교 의과학연구소 1997 건국의과학학술지 Vol.7 No.-
The early detection and proper management of mitral regurgitation(MR) associated with acute myocardial infarction(MI) is very important to improve the clinical course and outcome of disease. The change of left ventricular shape and regional function, papillary muscle rupture are major determinant of the existence and severity of MR. We performed 2D and M mode echocardiography of 28 patients at the early stage of acute MI to evaluate the existance and degree of MR and its pathogenetic factor. Significant MR occured in 12 (42.9%) patients. In the group of MI with MR, the inferior MI was frequent (7 case) than anterior MI (5 case) comparing to the patient group of MI without MR (inferior MI : 6 case, anterior MI : 10 case) (p<0.01).The left ventricular end diastolic dimension(LVEDD), end systolic dimension (LVESD) and left atrial dimension (LAD) were significantly increased in MI with MR than MI without MR (LVEDD : 57.3 ±8.6 vs 46.4 ±9.2, p<0.05 ; LVESD : 52.9 ±9.2 vs 38.3 ±7.4, p<0.01 ; LAD : 45.4 ±3.8 vs 37.7 ±3.7, p<0.05).However, the ejection fraction was not different between two group two groups. These datas showed that MR was more frequent in inferior MI and the hemodynamic derangement was more serious in acute MI with MR.
심명화,정홍석,김창석,백승우,안도희,이민수,김광락,임성팔 한국공업화학회 2005 응용화학 Vol.9 No.1
The main purpose of fusion fuel supply system is to store and supply hydrogen isotopes needed for operation of ITER and to provide the necessary infrastructure for short and long term storage of large amount of hydrogen isotopes. The storage of tritium as metal tritide on hydride forming metals or intermetallic compounds is recognized as the most reliable and safe method. Considering the advantages and disadvantages of several hydrogen isotope getter materials, the authors suggest the use of ZrCo on the basis of its ideal P-T-C characteristics and its non pyrophoricity. The authors also suggest the hydrogen isotope storage beds design appropriate to the fusion fuel supply system.
잎파래 (Enteromorpha linza)의 葉體無菌化와 元形質體 培養
裵光星,宋相鎬,鄭圭和 慶尙大學校 1991 論文集 Vol.30 No.2
잎파래(Enteromorpha linza) 葉體의 無菌化와 葉體에서 分離한 原形質體의 培養에 關한 몇가지 條件을 決定코자 하였다. 洗劑로 葉體의 附着微生物을 除去하기 爲해서는 0.1%液으로 15∼20分間 洗 하는 것이 效果的이었으며, 組織內部의 微生物은 1% KI-I2液으로 2.5∼5分間 處理하여 抗生劑 2%가 添加된 培地함으로서 除去가 可能하였다. 葉體의 原形質體는 2% AAP가 添加된 各種酵素液으로 容易하게 분리할 수 있었다. 原形質體의 無菌培養을 爲한 抗生物質의 添加濃度는 1.5%程道가 適當하였으며 照度는 2000lux以上일 境遇培養에 큰 影響을 미치지는 않는 傾向이었다. Basic studies for obtaining the axenic tissue, isolation and culture of protoplasts of Enteromorpha linza have been attempted. Treating with 0.1% detergent for 15-20mins were effective for cleaning the collected tissue. Exposure the tissue to a 1% KI-I2 solution for 2.5-5.0 mins subsequently culture them in the medium containing 2.0% antibiotic materials were good for inhibition of bacterial growth as well as enzyme solutions composed of abalone acetone powder, cellulase R-10, and driselase. The 2.0% antibiotic medium was good for the suppression of bacterial growth in protoplasts culture. The development of protoplasts was not largely influenced by the light strength and photoperiods.
유운종,금채,정광화,최석호 충남대학교 자연과학연구소 1989 忠南科學硏究誌 Vol.16 No.1
We extend the ranges of the vacuum standards to 10^-6 Pa by injecting the gas flow into the lower vacuum chamber of the orifice flow type vacuum standards system. The systematic error of the vacuum measurement has been reduced by measuring temperature accurately by reducing leak rate of the flowmeter and by attaching the ballast tank to flowmeter. We measure N_2, He and Ar gases for the sensitivity of nude ionization gauge for the check of the vacuum accuracy. The results are compared with the result of other research institute.
Chung, Kwang Hwa,Cho, Mi Young,Sung, Moon-Hee,Poo, Haryoung,Lim, Yong Taik Royal Society of Chemistry 2011 Chemical communications Vol.47 No.31
<P>Biocompatible dual-modality imaging nanoprobes were synthesized by the electrostatic assembly of poly(γ-glutamic acid)[Gd-DTPA] and chitosan[IRDye800] and applied for the imaging of immune cells (phagocytic) and cancer cells (non-phagocytic).</P> <P>Graphic Abstract</P><P>The authors synthesized MR/NIR dual-modality imaging nanoprobes by the electrostatic assembly of biocompatible polyelectrolytes and used them for the imaging of immunotherapeutic cells and breast cancer cells. <IMG SRC='http://pubs.rsc.org/services/images/RSCpubs.ePlatform.Service.FreeContent.ImageService.svc/ImageService/image/GA?id=c1cc11922b'> </P>
Ryu, Chung-Kyu,Lee, Ra-Young,Lee, Seung-Yon,Chung, Hwa-Jin,Lee, Sang Kook,Chung, Kwang-Hoe 이화여자대학교 약학연구소 2009 藥學硏究論文集 Vol.- No.19
A series of 2-phenyl-1H-benzo[d]imidazole-4,7-diones were synthesized and tested for their inhibitory activity on the PDGF-stimulated proliferation of rat aortic vascular smooth muscle cells. Among the tested compounds, 6-arylthio-5-chloro-2-phenyl-1H-benzo[d]imidazole-4,7-diones exhibited an potent antiproliferative activity.