21세기의 치과의료관리

김설악,Kim, Seol-Ak 대한심미치과학회 2000 Journal of the Korean Academy of Esthetic Dentistr Vol.9 No.1

β-TCP 첨가량에 따른 생분해성 PLA/β-TCP 복합체의 생체활성과 기계적 특성 평가

문희정,김설악,김동애,Moon, Hee-Jung,Kim, Seol-Ak,Kim, Dong-Ae 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3

본 연구는 PLA에 β-TCP를 첨가한 복합체의 생체활성도와 기계적 성질을 평가하고자 한다. 클로로프롬 용액에 24 시간 교반기를 이용해서 PLA와 β-TCP를 무게별로 0, 10, 30, 50 wt% 용해한 후 에탄올 용액에서 PLA/β-TCP 복합체를 추출 후 사출성형을 통해 다양한 기계적 평가를 위한 시편을 제작하였다. SBF 인체 유사 체액에 1, 7, 30, 90 일 동안 침전하여 생체활성도를 평가하였다. 본 연구 결과 PLA/β-TCP 10-30 wt% 첨가한 실험군에서는 유의하게 강도가 증가하였으나 50 wt% 첨가한 실험군에서는 감소하였다. 결론적으로 β-TCP 30 wt% 이상 첨가하는 것은 사출성형 고분자 복합체의 기계적 특성이 개선되지 않는다. 표면 생체활성도는 90일 침전 후 표면 전체에 아파타이트 결정을 형성하였다. β-TCP는 표면특성과 기계적 성질 개선효과가 있음을 입증하였다. 향후 PLA/β-TCP 첨가량에 따른 효율성과 폭 넓은 물성 연구가 필요할 것으로 사료된다. The aim of the present study was to investigate the mechanical properties of melt-injected poly lactic acid (PLA) composites with β-tricalcium phosphate (β-TCP). The PLA mixed with calcined PLA/β-TCP powder to be contents of 0, 10, 30, 50 wt%, respectively, was dissolved in chloroform solvent under stirring for 24 h. Then the liquid mixtures were dropped into ethanol to extract solvent. After drying, the well-dispersed PLA/β-TCP composites were granulated and melt-injected to prepare specimens for various mechanical testing. PLA/β-TCP induced the precipitation of an apatite bone-mineral phase on the surface after immersion in a human simulated body fluid (SBF) for 90 days, showing in bioactivity. Mean various mechanical properties PLA/β-TCP composite were increased up to 10-30 wt% with significantly in part and composite were decreased 50 wt% of showing in mechanical properties. In conclusion, Over 30 wt% addition of β-TCP to PLA may be not advisable to improve the mechanical properties of melt-injected polymeric composites. Results indicated that β-TCP can be used considered as potential reinforcing agent for increasing mechanical properties for PLA. Therefore, it was suggest that the additional effects of β-TCP and research on a wide range of substances.

한국치위생학회지 게재논문(창간호~2015년)의 연구동향 분석

장종화,원복연,장계원,김설악,오상환,김윤정,하명옥,이영은,이가령,박성숙,엄숙,Jang, Jong-Hwa,Won, Bok-Yeon,Jang, Gye-Won,Kim, Seol-Ak,Oh, Sang-Hwan,Kim, Yun-Jeong,Ha, Myung-Ok,Lee, Young-Eun,Lee, Ga-Ryoung,Park, Sung-Suk,Um, Suk 한국치위생학회 2017 한국치위생학회지 Vol.17 No.4

Objectives: The purpose of study is to investigate trends in dental hygiene research published in the Journal of Korean Society Dental Hygiene. Methods:Total of 992 researches were published between 2001 to 2015 were reviewed using analysis criteria. Results: 23.7% of the researches were supported financially. The most frequent research topics were oral health (40.9%). 3 to 5 researchers per research (38.5%) was most common and 84.1% of principal researchers were professors. 29 researchers were approved by IRB (2011 to 2015). As for the type of research, 87.1% of quantitative studies adapted survey and 9.5% adapted experiment. Convenient sampling was used in 85.6% of the researches. 32.7% of studies searched information in school. Interventions of dental material were the most in pre experimental design (19.2%) and Interventions of activation of oral health program were the most in quasi experimental design (37.5%). Conclusions: The findings of this study suggested the recent trends and the direction in dental hygiene research.

생활터 중심 아동의 단기계속구강관리 효과분석

김영진 ( Young Jin Kim ),김설악 ( Seol Ak Kim ),최은영 ( Eun Young Choi ) 한국치위생학회(구 한국치위생교육학회) 2013 한국치위생학회지 Vol.13 No.1

Objectives: The purpose of this paper is to analyze the effects of short-term oral health care on children at community care centers, in order to allow them to maintain good oral health. Methods: The SPSS (Statistical Package for Social Science), Window Version 18.0 was used to analyze the data for the children`s present conditions of oral health; their ability to maintain good oral health; their general knowledge about oral health; changes in their oral health awareness; habit formations concerning oral health; and the satisfaction level of oral health education. Results: 1. While the average number of teeth before the program is 19.84(6.19), that of teeth after the program is 21.33(6.10). 2. Average test scores on oral health information of post-program are improved more than those of pre-program. 3. The 8th measurement of O`Leary plaque index is 3.27, which shows significant changes. 4. Satisfaction level with the program is 4.75(0.45), which shows that children are satisfied with the program. Conclusions: The paper shows that in order to maintain the oral health of children at community care centers, their habit formation and practice for the oral health is important. It also shows that cooperation among communities and public health centers is important to develop various oral health education programs like the program.

일부 특수학교 장애인의 치아우식증과 식생활실천지침 이행정도의 관련성

문희정 ( Hee Jung Moon ),김설악 ( Seol Ak Kim ),박희정 ( Hee Jung Park ) 한국치위생학회(구 한국치위생교육학회) 2012 한국치위생학회지 Vol.12 No.6

Objectives: The purpose of our study was to examine the relationship of oral health status such as dental caries and the performance of dietary action guides with six items. Methods: Oral examination and self-administrated questionnaire were conducted on 87 disabled students, aged 6-19 who were attending special school in the area of the metropolitan Seoul. Two logistic regression models to estimate odds ratios and 95% confidence intervals were used to investigate the association dental caries experience and the performance of dietary action guides after controlling for potential confounders. Results: The proportion of study subjects with caries were 37.9%, 26.9%(male) and 54.3%(female), respectively(p<0.05). There was significantly difference the subjects with caries and perceived oral health status(p<0.01). Among the dietary action guides items, skipping breakfast and not avoiding waste food were significantly higher in the proportion of subjects` caries(p<0.05, p<0.01, respectively). The avoiding waste food groups had more possibility of having caries significantly(p<0.05), even after controlling gender, and perceived oral health status. Conclusions: These results indicate that oral health promotion policy with dietary action guides should be strengthened for support of disabled student`s dental health.

치과위생사의 전문직업적 정체성과 관련 요인

박정은 ( Jung-eun Park ),김설악 ( Seol-ak Kim ),박용덕 ( Yong-duk Park ) 한국치위생학회(구 한국치위생교육학회) 2016 한국치위생학회지 Vol.16 No.4

Objectives: The purpose of the study was to investigate the professionalism identity and related factors in dental hygienists. Methods: A self-reported questionnaire was completed by 347 dental hyfienists from March 5 to May 31, 2015. Except incomplete 39 answers, data were analyzed by frequency analysis, ANOVA, Pearson``s correlation coefficient, and multiple regression analysis using SPSS 22.0. The questionnaire comprised 25 items including professionalism scale by Hall, Snizek, and Anderson by Likert 5 point scale. Results: Professionalism scale revealed self-regulation(3.65±0.58), service conviction(3.64±0.62), skills and training(3.21±0.70), sense of professional vocation(3.20±0.65), and thought about professional group(3.08±0.78). The professionalism identity by general characteristics showed significant differences and there were positive correlations in main factors. The identity level was influenced by internal factors rather than economic compensation. Conclusions: There were positive correlation in main factors. The identity level was influenced by internal factors.

β-TCP 첨가량에 따른 생분해성 PLA/β-TCP 복합체의 생체활성과 기계적 특성 평가

문희정(Hee-Jung Moon),김설악(Seol-Ak Kim),김동애(Dong-Ae Kim) 한국콘텐츠학회 2021 한국콘텐츠학회논문지 Vol.21 No.3

본 연구는 PLA에 β-TCP를 첨가한 복합체의 생체활성도와 기계적 성질을 평가하고자 한다. 클로로프롬 용액에 24 시간 교반기를 이용해서 PLA와 β-TCP를 무게별로 0, 10, 30, 50 wt% 용해한 후 에탄올 용액에서 PLA/β-TCP 복합체를 추출 후 사출성형을 통해 다양한 기계적 평가를 위한 시편을 제작하였다. SBF 인체유사 체액에 1, 7, 30, 90 일 동안 침전하여 생체활성도를 평가하였다. 본 연구 결과 PLA/β-TCP 10-30 wt% 첨가한 실험군에서는 유의하게 강도가 증가하였으나 50 wt% 첨가한 실험군에서는 감소하였다. 결론적으로 β-TCP 30 wt% 이상 첨가하는 것은 사출성형 고분자 복합체의 기계적 특성이 개선되지 않는다. 표면 생체활성도는 90일 침전 후 표면 전체에 아파타이트 결정을 형성하였다. β-TCP는 표면특성과 기계적 성질 개선효과가 있음을 입증하였다. 향후 PLA/β-TCP 첨가량에 따른 효율성과 폭 넓은 물성 연구가 필요할 것으로 사료된다. The aim of the present study was to investigate the mechanical properties of melt-injected poly lactic acid (PLA) composites with β-tricalcium phosphate (β-TCP). The PLA mixed with calcined PLA/β-TCP powder to be contents of 0, 10, 30, 50 wt%, respectively, was dissolved in chloroform solvent under stirring for 24 h. Then the liquid mixtures were dropped into ethanol to extract solvent. After drying, the well-dispersed PLA/β-TCP composites were granulated and melt-injected to prepare specimens for various mechanical testing. PLA/β-TCP induced the precipitation of an apatite bone-mineral phase on the surface after immersion in a human simulated body fluid (SBF) for 90 days, showing in bioactivity. Mean various mechanical properties PLA/β-TCP composite were increased up to 10-30 wt% with significantly in part and composite were decreased 50 wt% of showing in mechanical properties. In conclusion, Over 30 wt% addition of β-TCP to PLA may be not advisable to improve the mechanical properties of melt-injected polymeric composites. Results indicated that β-TCP can be used considered as potential reinforcing agent for increasing mechanical properties for PLA. Therefore, it was suggest that the additional effects of β-TCP and research on a wide range of substances.

치위생 실습실에서 치위생과 학생의 감염에 관한 태도 연구

김은희 ( Eun Hee Kim ),김설악 ( Seol Ak Kim ) 한국치위생학회 2009 한국치위생학회지 Vol.9 No.4

치위생과 학생의 구강건강 지식과 행동변화

이은경 ( Eun Kyoung Lee ),남용옥 ( Young Ok Nam ),김설악 ( Seol Ak Kim ),김민지 ( Min Ji Kim ),한동헌 ( Dong Hun Han ),김진범 ( Jin Bom Kim ) 한국치위생학회 2009 한국치위생학회지 Vol.9 No.4

한국 치위생(학)과 표준교육과정안 개발

원복연 ( Bok Yeon Won ),장계원 ( Gye Won Jang ),황미영 ( Mi Yeong Hwang ),김설악 ( Seol Ak Kim ),장종화 ( Jong Hwa Jang ) 한국치위생학회(구 한국치위생교육학회) 2013 한국치위생학회지 Vol.13 No.1

Objectives: In order to make a proposal of a Korean standard dental hygiene curriculum, the job description of the National Health Personnel Licensing Examination Board was analyzed to prepare a job analysis matrix of dental hygienist to select required core competency. Methods: Data were analyzed to test the job validity of dental hygienist and categorize the duties of dental hygienist. A proposal of a standard dental hygiene curriculum was mapped out by making a comparative analysis of the courses necessary for American authorization of dental hygiene curriculum, existing proposals of Korean standard dental hygiene curriculum and the courses of the departments of dental hygiene offered by domestic three-year colleges and four-year universities. Results: Basic medicine courses were reinforced or newly offered to provide an opportunity for students to transfer to a domestic four-year university or to a foreign university. In the field of clinical dental hygiene and practice, preventive dentistry, prophylaxis and practice were integrated, and the names of the related courses were unified to give a chance for students to engage in comprehensive dental hygiene practice. There were different courses for dental clinical science at present. In this proposal, students should earn 125 credits in total. Conclusions: Standard dental hygiene curriculum proposal was required by three-year and four-year colleges across the nation. To make it happen, the original names of dental hygiene courses should be used, and the dental hygiene certification and evaluation institute that is under the umbrella of the Korean Dental Hygienists Association should lay out the standard of the KSDHEP to facilitate the utilization of the standard dental hygiene curriculum proposal.