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일부 성인의 개인적 기질 및 치과 방문경험과 치과공포와의 상관성
김철신 ( Chul-sin Kim ),최용금 ( Yong-keum Choi ) 한국치위생학회(구 한국치위생교육학회) 2016 한국치위생학회지 Vol.16 No.6
Objectives: The purpose of the study was to investigate the correlation between personal temperament, dental visit, and dental fear among adults. Methods: A self-reported questionnaire was completed by 400 adults visiting dental clinics from April to June, 2016. The questionnaire consisted of general characteristics of the subjects, dental fear, and temperament. Data were analyzed by t test, chi-square test, chi-square test, and pearson`s correlation analysis using SPSS v. 23.0. Results: The first impression of dental clinics had an impact on dental fear (p<0.001). The negative image on the dental clinics increased dental fear of the visitors. There was a significant difference between the purpose of dental visit and dentla fear. Conclusions: The positive image of the dental clinics can solve the dental fear due to treatment in the adults. The dental consumers should try to have the comfortable attitude toward dental clinic in case of visit.
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지역의 사회경제적 상태와 구강건강행위의 관련성: 다수준 분석방법의 적용
김철신 ( Cheoul Sin Kim ),한선영 ( Sun Young Han ),김철웅 ( Chul Woung Kim ) 대한예방치과·구강보건학회 2013 大韓口腔保健學會誌 Vol.37 No.4
Objectives: This study was conducted to identify discrepancies in oral health behaviors among communities in cities, counties, and districts (si , gun, and gu administrative divisions of South Korea) and to determine their correlations with socioeconomic status, examined in terms of the social deprivation index. Methods: Data for 220,258 individuals, covering 247 communities, were extracted from a 2008 community health survey, and the frequency of brushing the teeth after lunch, flossing and interdental brushing was calculated and analyzed. Considering the characteristics of the data collected at individual and regional levels, a multilevel random-intercept logistic regression model was used for the analysis. Results: A regional-level discrepancy was found in after-lunch brushing and the use of auxiliary oral hygiene items, with interclass correlations of 0.03 and 0.04, respectively. In particular, the odds ratio of using auxiliary oral hygiene items in the communities with the lowest socioeconomic status was as low as 0.49, compared to the highest level, thus demonstrating a conspicuous intercommunity difference. Conclusions: The regional-level correlation between socioeconomic status and oral health behaviors indicates the need for the establishment of oral health-related intervention policies based on community characteristics.
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X-Ray 기기의 설계변경에 따른 FDA 510(k) 인허가 영향 평가 모델 개발
김철신(Chul-Sin Kim),이세희(Sehee Lee),양정삼(Jeongsam Yang) (사)한국CDE학회 2018 한국CDE학회 논문집 Vol.23 No.4
In the event of design changes in a medical device, the same pathway for approval as the initial released product must be obtained from the authority in accordance with country-specific regulations. In this paper, we collect materials on the change management of medical devices approved by the US Food and Drug Administration (FDA) and analyze the design change data sets from the viewpoint of a digital X-ray device. Based on this analysis, we investigate the association among the items that need a 510(k) to be cleared, and then present a model for assessing the impact of 510(k) clearance on the basis of the related items. From this model, two key contributing causes for decision of change permission are derived, expressing as membership function graphs. Moreover, we will develop a fuzzy-based expert system that predicts the degree of the change registration of an X-ray device through a deductive reasoning in advance for many design change ideas. Finally, we analyze the correlation between the evaluation result of non-experts using this system and the evaluation result depending on the experience of human experts according to FDA 510(k) guidance.
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치과대학 및 치의학전문대학원의 국민건강보험관련 교육과정 개선방안에 대한 조사
김경미(Kyung-Mi Kim),김철신(Chul-Sin Kim),박덕영(Deok-Young Park) 대한치과보험학회 2014 대한치과보험학회지 Vol.5 No.1
Objectives : This study was to investigate the necessity of opening an independent subjects, and the current status of education related to national health insurance at dental colleges and graduate schools of dentistry. Method : The survey was conducted for 600 dentists who got dentist license during 2000-2004. Stratified systemic sampling with a graduated school as a atratum was done among 3,947 population using register of Korean Dental Association. Replied received from 136 people and Characteristic of each question was analyzed by frequency. Results : 86% of respondents replied on the need for independent subjects opening of National Health Insurance. Respondents regarded ‘practice of health insurance claim’, ‘theory of health insurace claim’, and ‘claim raising against settlement’ as important contents of health insurance education to be taught in dental schools. However, there was a significant gap between what dentists want to be taught and what is being given, as dental schools were teaching‘ health insurance system’ and ‘health insurance law’ as main contents in year 2012 Conclusions : Establishment of independent subject related to health insurance with ‘health insurance claim’ and ‘claim raising against settlement’ as its main contents in dental schools is needed to reduce the gap between needs of dentists and current status of health insurance education.
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강정희 ( Jeong Hee Kang ),김철웅 ( Chul Woung Kim ),김철신 ( Cheoul Sin Kim ),서남규 ( Nam Kyu Seo ) 대한예방치과·구강보건학회 2015 大韓口腔保健學會誌 Vol.39 No.1
Objectives: This study aimed to investigate differences in unmet dental care needs according to employment status and if factors have relevance to unmet dental care needs due to “economic burden” and “no time to spare for visiting”. Methods: Multivariate logistic regression analysis was performed to examine the factors that affected the prevalence of unmet dental care needs due to “economic burden” and “no time to spare for visiting” in an economically active population comprised of subjects aged 20-64 years. Results: Compared to regular workers, part-time workers experienced 1.28-times more unmet dental care needs, while students experienced 0.64-times fewer unmet dental care needs. With regard to reasons related to “economic burden”, the rate of experiencing unmet dental care needs was 1.37-times higher for part-time workers than for regular workers. Regarding reasons related to “no time to spare for visiting”, the rate of experiencing unmet dental care needs was 0.51-times lower in part-time workers compared with regular workers. In economically inactive people, these values were 0.51-times lower in the unemployed, 0.37-times lower in students, 0.23-times lower in house workers, 0.20-times lower in subjects with disease and injury, and 0.20-times lower in early retirees compared to regular workers. Conclusions: Part-time workers experienced more unmet dental care needs compared with regular workers. With regard to “economic burden”, a significant difference in unmet dental care needs was observed between regular workers and part-time workers. Additionally, regarding “no time to spare for visiting”, people who were economically inactive because of unemployment, student or house-worker status, diseases and injury, and retirement experienced fewer unmet dental care needs compared with regular workers.
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