의치상용 열중합 레진의 Curing방법에 따른 파절 강도의 비교실험연구

한민수,Han, Min-Soo 대한치과기공학회 2002 대한치과기공학회지 Vol.23 No.2

For this study, self curing resin and heat curing resin used for existing usual resin denture base in the denture industry were chosen by manufacturer. Curing tests for 30-minute, I-hour, 2-hour and 3-hour were conducted to know the strength of the resins and conduct analysis to get other necessary information. The results obtained are as follows: 1. Heat curing resins show a little differences among the manufacturers. However 30-minute curing resin shows great difference as shown in the fracture strength test. 2. The effect from the granularity of the resins on the fracture strength was found insignificant which means there is no difference between coherence and strength. 3. To summarize the results from each time level, the longer the time is, the more the minute cracks on the surface, which is the cause of reduced strength. From this test, it was identified that in making the denture base for patients in dental clinics, 30-minute curing is most efficient and effective in reducing discoloration and monomers, although long-time curing has been considered to be the principal.

양측폐에 발생한 종괴

한민수,강홍모,유지홍,Han, Min-Soo,Kang, Hong-Mo,Yoo, Jee-Hong 대한결핵및호흡기학회 1998 Tuberculosis and Respiratory Diseases Vol.45 No.1

A 64-year-old male was admitted due to weight loss of 5kg during a month. Chest X-ray showed two large, lobulated masses on both lower lobe. Chest CT showed ill-defined, multilobulated mass on left lower lobe and irregular, relatively homogenous mass with air-bronchogram on right lower lobe. Left lower lobectomy and right lower lobectomy was performed sequentially with three months interval. Microscopic findings showed squamous cell carcinoma of both mass. It was thought that this patient had synchronous double primary lung cancer.

An analysis of the perceptions of dental implant plans in the Korean national health insurance and the dental clinic selection criteria among elderly patients in Hongseong-gun, Chungcheongnam-do

한민수,권은자,최에스더,Han, Min Soo,Kwon, Eun Ja,Choi, Esther Korean Academy of Dental Technology 2021 대한치과기공학회지 Vol.43 No.3

Purpose: This study aimed to investigate the perception of dental implant insurance supply and demand for the elderly living in Hongseong-gun and Chungcheongnam-do, as well as the selection criteria regarding dental clinics for dental implant treatment to collect basic data for improving the oral health of the elderly population. Methods: Participants living in Hongseong-gun, Chungcheongnam-do who were at least 55 years old from November 2020 to March 2021 were included in this study. The chi-square test was performed to examine the age-specific perception of insurance-covered dental implants (p<0.05). Results: The age group that was the most interested in implants was the 70s age group, and the difference between this age group and the other age groups was statistically significant. Those in their 70's, 80's, and 90's or older paid about 600,000 won including dental implants covered by insurance, and there was a significant difference (p<0.05). Those in their 60s, 70s, and 80s estimated the highest value of implants covered by insurance as two and showed a significant difference (p<0.05). The awareness of the dental implant insurance by age showed that all age groups, except for the ≥90 years age group, considered the insurance to be mediocre mostly due to the large co-payment (p<0.05). Conclusion: There were differences by age in the awareness of dental implant insurance, co-payments, number of applications, and insurance coverage. The perceptions on dental implant insurance by age showed that all age groups except for those over 90 years and older, they considered the insurance was just mediocre the most.

지대치 변연 형태에 따른 수작업과 CAD/CAM으로 제작한 coping 패턴의 적합도 비교

한민수(Han, Min-Soo),권은자(Kwon, Eun-Ja),최에스더(Choi, Esther),김시철(Kim, Si-chul) 한국산학기술학회 2015 한국산학기술학회논문지 Vol.16 No.10

본 연구는 수작업으로 제작된 metal coping과 CAD/CAM(Computer Aided Design/Computer Aided Manufacturing)으로 제작된 지르코니아 coping을 제작하여 변연과 내면 적합도를 비교 분석하고자 하였다. 모형은 우레탄 모형재를 사용하여 knife, chamfer변연 두 종류의 지대치를 제작하였다. 수작업과 CAD/CAM으로 제작된 보철물의 변연 적합도를 실리콘 리플리 카 테크닉방법을 사용하여 측정하였다. 적합도 측정은 현미경의 CCD카메라로 캡쳐하였다. 이때 지대치와 보철물의 거리는 이미지분석 소프트웨어에서 거리 조정이 된 상태에서 실시하였다. 측정부위는 marginal opening을 MO, marginal gap을 MG, internal gap을 IG, Axial gap을 AG, occlusal gap을 OG로 하였다. 제작법과 변연 형태에 따른 비교분석을 위해 이원배치분산 분석을 실시하였으며 서로 다른 평균값들의 비교 분석을 위해서 일원배치분산분석과 Scheffe's 사후 검정을 실시하였다. 그 결과 CAD/CAM의 OG와 knife 변연의 MO을 제외하고는 <120 μm 적합도를 나타냈다. CAD/CAM으로 제작된 coping은 chamfer 변연 MO에서 높은 적합도를 보였으나 MG에서는 knife변연이 chamfer변연 보다 더 좋은 적합도를 보였다. AG의 내면 적합도는 가장 좋은 값을 나타내었다(<38 μm). The purpose of this study is to compare the marginal and internal fit of metal and zirconia coping which is fabricated by manual and CAD/CAM(Computer Aided Design/Computer Aided Manufacturing). The model is prepared with Urethane material and two abutment teeth are fabricated with a knife and chamfer margin. Silicon replica technique is used to measure the marginal fit of manually fabricated and the CAD/CAM coping. Internal fitting level is measured with a microscope and the image is captured with a CCD camera. The distance between abutment teeth and coping is measured with a callibrated image analyzer software; marginal opening (MO), marginal gap (MG), internal gap (IG) at maximum curvature area, axial gap (AG), and occlusal gap (OG). Two-way ANOVA test is applied to compare fabrication technique and to analysis of abutment pattern. In addition, one-way ANOVA and Scheffe's test is used to analyze each parameter of the test. The result shows that the fit is <120 μm except OG of CAD/CAM and MO of knife margin. The CAD/CAM fabricated coping showed higher fit level at chamfer margin. However, knife margin showed better fitness compared to chamfer margin at MG. AG showed the minimum dimension with a constant result (<38 μm).

간암환자에서 간동맥색전술후 발생한 담도괴사를 동반한 간농양

한민수(Min Soo Han),김준식(Joon Sik Kim),김병호(Byung Ho Kim),동석호(Seok Ho Dong),김효종(Hyo Jong Kim),장영운(Young Woon Chang),이정일(Jung Il Lee),장린(Rin Chang) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.1

Hepatocellular carcinoma is a common neoplasm with an extremely poor prognosis. L.Jnfortunately, hepatocellular carcinomas are often not detected until they become unresectable. The resectability of the patients with symptomatic hepatocellular carcinoma is less than 10%. Transcatheter hepatic arterial embolization(TAE) is now accepted as a treatment of unresectable hepatocellular carcinoma. However, aside from its therapeutic effect, complications or untoward side effects also occur during of following TAE. The side effects of TAE include hepatic failure, liver abscess, splenic infarction, pancreatic and gastric infarction and cholecystitis or gallbladder gangrene. Bile duct necrosis, septicemia and renal failure are rarely reported. We report a case of liver abscess combined with bile duct necrosis after TAE in a patient with hepatocellular carcinoma.

치과기공사의 개인역량이 조직몰입에 미치는 영향

한민수(Han, Min-Soo),권은자(Kwon, Eun-Ja),이주연(Lee, Ju-Yeon) 한국산학기술학회 2013 한국산학기술학회논문지 Vol.14 No.6

본 연구는 치과기공사의 개인역량과 조직몰입 정도를 분석하고 그 상관관계를 알아보기 위해 서울시, 경기 도, 충남지역의 치과기공사 200명을 선정하고 자기 기입식 설문지를 이용하여 2012년 4월 28일부터 5월 25일까지 조사를 실시하였다. 연구도구는 신뢰성과 타당성이 입증된 설문지를 사용하였으며, 대상자의 일반적 특성, 개인역량, 조직몰입도 등 총 46문항으로 작성하였다. 수집된 자료의 분석은 SPSS ver 18.0 프로그램을 이용하였으며, 분석기법 으로는 빈도와 백분율, T-test, F-test 등의 통계기법을 사용하여 분석하였다. 수집된 자료의 분석결과 연구대상자의 개인역량은 연령, 결혼상태, 근무지, 경력, 담당직위, 최종학력 항목에서 유의한 차이가 있었다(p<0.05). 개인역량 평 균은 3.68로 높게 나타났다. 연구대상자의 조직몰입 정도를 분석한 결과 성별, 연령, 결혼상태, 근무지, 경력, 담당직 위, 최종학력 항목에서 유의한 차이가 있었으며(p<0.05), 조직몰입도의 평균은 3.46으로 높게 나타났다. 개인역량과 조직몰입도의 상관관계는 높은 정(+)상관관계를 보였고, 대부분의 변수가 상관관계가 있는 것으로 나타났다. 이상의 결과를 종합할 때, 치과기공사의 개인역량은 직무성과인 조직몰입과 관련이 있는 것을 알 수 있었다. The purpose of this study was to analyze dental technician's individual competency and organizational commitment level and to examine its correlation. 200 dental technicians in Seoul, Incheon, and Chunchungnamdo area were selected. Survey was carried out from April 28, 2012 to May 25, 2012 by using self-administered questionnaire. As for the tools for this study, the structured questionnaire was used with its proven reliability and feasibility, and the contents of questionnaire consisted of 46 questions on the basis of related references. The subjects completed questionnaire regarding general characteristics, individual competency and organizational commitment. The data analysis was processed by computerized system with SPSS 18.0. Statistical analysis techniques included frequency, percentage, T-test, F-test analysis and regression analysis. As a result of analyzing the research subjects’ individual competency level, there was significant difference in the item of age, marital status, residence area, carrier, job position, education(P<0.05). The average in the individual competency was indicated to be high with 3.68. As a result of analyzing the research subjects’ organizational commitment level, there was difference in the item of gender, age, marital status, residence area, carrier, job position, education(P<0.05). The average of organizational commitment was indicated to be high with 3.46. Correlation between individual competency and organizational commitment, most of variables were indicated to have correlation, thereby having been shown that the more individual competency leads to the more organizational commitment.

선종성 용종성 대장증후군의 병전 진단

한민수(Min Soo Han),김효종(Hyo Jong Kim),김현우(Hyun Woo Kim),임성식(Sung Shick Lim),동석호(Seok Ho Dong),김배영(Bae Young Kim),이정일(Joung Il Lee),장영운(Young Woon Chang),이기형(Kee Hyung Lee),장린(Rin Chang) 대한소화기학회 1996 대한소화기학회지 Vol.28 No.2

N/A Background/Aims: APC is inheritable in an autosomal dominant manner and includes both familia) adenomatous polyposis(FAP) and Gardners syndrome(GS). For the presyptomatic diagnosis of APC, several DNA markers on Sq for linkage analysis are now available. A]so, a PCR-based screening method for mutation analysis is available. To evaulate the usefulness of two different presymptomatic diagnostic tests for APC, we performed linkage and mutation analyses, respectively, on both FAP and GS families. Methods: Genomic DNA was extracted from the peripheral lymphocytes from 8 members of affected fami]ies with APC and 5 members with GS. Five micrograms of each DNA was digested with restriction enzyme Msp I, and Southern blotting and hybridization using the probe EF 5.44 were performed. Using PCR with [a- PJ dCTP incorporated for labelling, DNA fragments were amplified by both the DSS82 and tbe DSS346 locus respectively, and identified by ethidium bromide staining after agarose gel electrophoresis. Products of the PCR were loaded on 10% denaturing(8M urea) polyacrylamide gels in TAE buffer, and the reactions visualized by autography. For the detection of germ-line mutations, two different segments of the APC gene were arnplified by the PCR and analyzed by PAGE. Results: All the polymorphic markers, except CA repeat marker YN5.64 in GS family, are not informative in both FAP and GS fami]ies. Although CA repeat marker YN5.64 is informative in GS family, presymptomatic diagnosis can not be made with certainty because this one is an index family with spontaneous mutation. Using the two systems for the detection of re]atively common germ-line mutations, presymptomatic diagnosis can be made only in GS family. Conclusions: Linkage analysis and systems for the detection of germ-line mutations using PCR, although useful in some situations, could benefit a minority of kindreds with adenomatous polyposis coli. (Korean J Gastroenterol 1996; 28:185 - 197)

비정합 불확실성이 존재하는 시스템의 등가 입력 외란 추정을 이용한 제어기 설계

한민수(Min Soo Han),김인혁(In Hyuk Kim),손영익(Young Ik Son) 대한전기학회 2015 정보 및 제어 심포지엄 논문집 Vol.2015 No.10

쿨통 마찰과 입력 외란 추정을 이용한 기계 시스템의 제어 성능 개선

한민수(Min-Soo Han),육주형(Joo-Hyoung Yook),이초원(Cho-Won Lee),손영익(Young Ik Son) 대한전기학회 2014 대한전기학회 학술대회 논문집 Vol.2014 No.10

비정합 삼각함수 외란이 존재하는 PMSM의 모델 기반 외란 추정을 이용한 제어기 설계

한민수(Min Soo Han),김인혁(In Hyuk Kim),장수영(Suyeong Jang),손영익(Young Ik Son) 대한전기학회 2017 정보 및 제어 심포지엄 논문집 Vol.2017 No.10