치관부 파절편 재부착술식을 이용한 상악전치부 치관파절의 치료에 대한 2건의 증례보고

최유리나(Yoorina Choi) 대한치과의사협회 2016 대한치과의사협회지 Vol.54 No.7

Crown fractures are a common type of dental injuries and very frequently occurred on maxillary anterior teeth, area of requiring a rapid aesthetic recovery. Crown fragment reattachment is a simple and conservative method to restore the fractured teeth. The technique promotes esthetic outcomes as utilizing natural contour, shade, surface texture of teeth and gives mechanical similarity in terms of wear-resistance. Also it gives emotional positive responses to patients and requires less of chair time and costs. This case report presents two cases of crown fragment reattachments on maxillrary anterior teeth, including one complicated crown fracture and one uncomplicated crown fracture. If the fragment is available in cases of crown fractures, reattachment of fragment can be regarded as a predictable alternative. However, it is all the time important that a close conversation informing the patients about the limitations and prognoses of this treatment option.

특허분석을 활용한 산업별 안전기술개발 동향 모니터링

최유리,서용윤,Choi, Yuri,Suh, Yongyoon 한국안전학회 2020 한국안전학회지 Vol.35 No.4

Along with the rapid development of industrial technology, the industrial structure has been continuously changed. Accordingly, safety technologies have been gradually developed to be applied into various industrial fields as well, not limited to a specific industry area. As a result, it became important to analyze and predict trends of safety technology development in order to establish technology strategies for industrial safety. In particular, since patents are easily accessible to gather the technology and business information, many studies have highlighted technology forecasting using patent information. Thus, this study proposes the patent analysis of monitoring trends of safety technologies of industry fields, taking into account both static and dynamic aspects through index and text analysis. First, patent documents containing safety-related keywords are collected from the WIPSON database for extracting technology information. Then, the development trends of safety technologies by industry fields are identified and analyzed through the analysis of indicators such as marketability, growth, and activation. The results of various indicator analyses of safety technologies are visualized to compare among industrial safety technologies for businesses and technology developers. Second, textmining algorithm is applied to identify trends of specific technology keywords of major industries extracted from patent index analysis. As a result, it is expected that the safety manager uses the patent analysis of safety technologies to provide safety technology information with safety-related companies and institutes. The extracted safety technologies are applicable to business practice and predict future promising technologies.

청소년의 회복탄력성에 대한 고등학교 기술·가정 교과서 활동과제 분석

최유리,김은정,이소영,이지선,임소진,박미정,Choi, Yoo-ri,Kim, Eun-Jong,Lee, So-Young,Lee, Gi-Sen,Lim, So-Jin,Park, Mi-Jeong 한국가정과교육학회 2018 한국가정과교육학회지 Vol.30 No.4

The purpose of this study is to contribute to the improvement of the resilience of adolescents through the analysis of activities in high school Technology·Home Economics textbooks developed according to the 2015 revised high school Technology·Home Economics curriculum. For this purpose, we analyzed the activities of 12 high school Technology·Home Economics textbooks in the 'human development and family' and 'family life and safety' areas based on the sub-factors of resilience. A total of 303 activities were extracted from 12 textbooks. After analyzing the activities of the three people, the process of revising and supplementing the analysis criteria through consultation was conducted three times and then reviewed by three experts. The analysis found that although there were differences in the number of activities to be dealt with, it was common to focus on raising interpersonal ability(54.8%) among the sub-factors of resilience. Followed by self-regulation(39.4%) and positive(5.8%). Second, the analysis of the activities by core concepts showed that the most activities dealing with the sub-factors of resilience were in the 'family life and safety' area, which deals with 'safety (44.3%)' as a core concept. And in the area of human development and family, which deals with development (25.1%) and relationships (36%) as core concept, the sub-factors of resilience were also covered. This can be inferred that the home curriculum is suitable for systematic education of resilience, and that the term resilience in the curriculum has been considered and dealt with resilience before it is specifically mentioned. I hope that the results of this study will be used as basic data for the development of home and resilience education programs in the future. 본 연구는 2015 실과(기술·가정)교육과정에 따라 개발된 고등학교 기술·가정 교과서의 활동과제 분석을 통해 청소년의 회복탄력성 증진에 기여하는 것을 목적으로 하고 있다. 이러한 목적을 위해 12종 고등학교 기술·가정 교과서의 '인간발달과 가족', '가정생활과 안전' 영역 내 활동과제를 회복탄력성의 하위요인을 기준으로 분석하였다. 12종의 교과서에서 총303건의 활동과제를 추출하였으며, 3인이 활동과제를 분석한 뒤 협의를 통해 분석기준을 수정·보완하는 과정을 3회 진행한 후 전문가 3인의 검토를 받았다. 분석 결과, 다루는 활동과제의 수에 차이가 있지만 공통적으로 회복탄력성의 하위요인 중 대인관계능력(54.8%)을 기르는데 초점을 두고 있었다. 그 다음으로 자기조절능력(39.4%), 긍정성(5.8%)으로 나타났다. 둘째, 핵심개념별로 활동과제의 회복탄력성 비율을 분석한 결과, '안전(44.3%)'을 핵심개념으로 다루는 '가정생활과 안전' 영역 외 '발달(25.1%)', '관계(30.6)'를 핵심개념으로 다루는 '인간 발달과 가족' 영역에서도 회복탄력성 하위요인을 고루 다루고 있었다. 이를 통해 가정 교과가 회복탄력성을 체계적으로 교육하기에 적합한 교과이며, 교육과정 내 회복탄력성이라는 용어가 구체적으로 언급되기 이전부터 회복탄력성을 중요하게 생각하고 다루어 왔음을 유추할 수 있다. 이 연구의 결과가 향후 가정과 회복탄력성 교육 프로그램 개발에 기초자료로 활용되기를 기대한다.

Streptococcus mutans에 대한 티트리의 항균 효과

최유리,강민경,Choi, Yu-Ri,Kang, Min-Kyung 한국치위생학회 2017 한국치위생학회지 Vol.17 No.4

Objectives: The purpose of this study is to investigate the antibacterial effect of Streptococcus mutans of tea tree ingredient. Methods: The experimental groups were each given with different concentrations (30 or 50 vol%) of tea tree prepared in saline solution. The control group applied only saline solution. The tea tree coating of the specimen were examined under a scanning electron microscope. For the antibacterial activity test of the tea tree, the contact angle of the tea tree- coated specimen's surface was analyzed. The antibacterial effect against Streptococcus mutans was determined by counting the colony forming units (CFU). The statical statics were evaluated by using one-way ANOVA and paired t-test. Results: The tea tree treated group of hydrophilic more than non treated group. Antibacterial experiments demonstrated that tee tree solution was effective against Streptococcus mutans. However there was no significant difference in depending solution concentration groups. Conclusions: The antimicrobial activity of the tea tree containing solution showed its potential for use as coating for denture and medical materials.

Effect of powder-liquid ratios and powder colors on color stability of 4-META / MMA-TBB resin after immersion in coffee

Yoorina Choi(최유리나),Seo-Jin Jang(장서진),Su-Jung Park(박수정) 대한치과재료학회 2018 대한치과재료학회지 Vol.45 No.3

Evaluation of irradiance and spectral output of visible light curing units used in the laboratory

최유리나,Su-Beom Choi,정지혜,장훈상 조선대학교 치의학연구원 2021 Oral Biology Research (Oral Biol Res) Vol.45 No.4

The irradiance of visible light curing units (LCUs) has been reported to decrease over time. However, the spectral output of used LCUs has rarely been evaluated. The purpose of this study was to evaluate the irradiance and the spectral output of visible LCUs used currently in laboratories. One halogen LCU (Optilux 360, O360), two polywave light emitting-diode (LED) LCUs (Bluephase Style [ST] and Bluephase G2 [G2]), and one single-peak LED LCU (Elipar S10, S10) were activated according to the manufacturers’ instructions. The irradiance and spectral output of the curing light were measured with a spectroradiometer in real time (n=10). Regarding the spectral peak and mean irradiance of the LCUs, O360 and G2 showed consistent data. However, ST showed spectral peaks at either 457 or 408 nm, and S10 at either 456 or 450 nm. The mean irradiance of ST and S10 was also inconsistent. Regarding the total energy, all LCUs surpassed the minimal energy value of 16 J/cm2 to fully polymerize an increment of 2 mm of composite resin. However, focusing on 420–540 nm range energy where camphorquinone is activated, some data showed an energy value for ST of less than 16 J/cm2, when the spectral peak was observed at 408 nm. Therefore, to evaluate the performance of the LCUs, not only the irradiance but also the spectral output should be monitored, especially in the case of polywave LED LCUs, where multiple spectral peaks are present.

Shear bond strength of universal adhesives using different modes of application

Hyeon-Ha Kim(김현하),Yoorina Choi(최유리나),Su-Jung Park(박수정) 대한치과재료학회 2017 대한치과재료학회지 Vol.44 No.4

日帝末期 「朝鮮增米計劃」에 對한 硏究

崔由利(Choi Yu-Ry) 한국사연구회 1988 한국사연구 Vol.61·62 No.-

학생선수의 훈련 인식 유형과 차이

최유리(Choi You Lee),이용국(Lee Yong Kuk) 학습자중심교과교육학회 2015 학습자중심교과교육연구 Vol.15 No.6

이 연구는 학생선수의 훈련 인식 유형과 차이를 분석하는데 목적이 있었다. 이러 한 연구 목적을 달성하기 위해 대한체육회에 등록되어 있는 고등?대학 학생선수 393명을 대상으로 개방형 설문 자료를 수집하였다. 수집된 자료는 Spradley(1980)의 귀납적 범주 분석을 이용하여 분석하였으며, 범주화된 내용은 기술통계를 이용하여 결과를 도출하였다. 이 연구에서 수집된 자료를 분석 및 해석한 결과는 다음과 같다. 첫째, 학생선수의 훈련 인식 유형에는 진로의식형, 성취목표형, 인간관계형, 자아개 념형이 있다. 둘째, 학생선수의 성별에 따른 훈련 인식에는 차이가 있다. 남자 학생 선수는 성취목표형이 가장 높은 비율을 보이고, 여자 학생선수는 진로의식형에서 가 장 높은 비율을 보이고 있다. 셋째, 학생선수의 학교급에 따른 훈련 인식에는 차이 가 없다. 고등학교 학생선수는 진로의식형이 가장 높은 비율을 보이고, 대학교 학생 선수는 성취목표형에서 가장 높은 비율을 보이고 있다. The purpose of this study was to analyze Student-Athlete’s training recognition type and difference. In order to meet the purpose of this study, the open-ended questions materials were collected from 393 high school and university student-athletes registered in Korea Olympic Committee. The collected materials were analyzed by using Spradley(1980)’s inductive area analysis and then compared with categorized contents. The result of analysis of the collected materials is as follows. First, there are career maturity, achievement goal, interpersonal relationship, self-concept in Student-Athlete’s training recognition type. Second, There is a difference in training recognition according to gender. In male student-athlete’s training recognition, the result showed the achievement goal is the highest rate. In female student-athlete’s training recognition, the result showed career maturity is the highest rate. Third, there is a difference in student-athlete’s training recognition according to the team that they are belonging to. For high school student-athlete, the result showed the career maturity is the highest rate. For university student-athlete, the result showed the achievement goal is the highest rate.

출생순위에 따른 부모화 경험과 자기분화의 관계

최유리 ( Yoori Choi ),송현주 ( Hyunjoo Song ) 아시아문화학술원 2018 인문사회 21 Vol.9 No.3

본 연구는 중학생과 대학생 집단을 대상으로 출생순위와 자기분화의 관계에서 부모화 경험의 매개효과가 연령별로 어떤 차이를 나타내는지 알아보고자 하였다. 이를 위해 남·여 총 308명을 대상으로 부모화 척도(FRS-Y), 자기분화 척도를 사용하였고, 자료분석은 SPSS 18.0 프로그램을 이용하여 상관분석, 위계적 회귀분석을 통해 검증하였다. 연구 결과, 중학생 집단에서는 부모화 경험이 출생순위와 자기분화간의 관계를 부분 매개한 반면, 대학생 집단에서는 유의미한 매개효과를 보이지 않았는데, 어린 연령의 자녀일수록 출생순위라는 가족변인에 더 큰 영향을 받을 뿐만 아니라, 부모화 경험을 높게 지각하며 간접적으로 자기분화 수준을 감소시키는 것으로 나타났다. 본 연구는 전기 청소년에 해당하는 중학생과 후기 청소년에 해당하는 대학생 집단을 연구대상으로 선정함으로써 출생순위가 부모화와 자기분화에 미치는 영향이 연령집단에 따라 차이가 있다는 것을 경험적으로 증명하였다는 점에서 그 시사점이 있다고 볼 수 있다. This study examined how the mediating effects of the parentification experience in the relationship between parentification and differentiation of self change according to age. For doing this, we used the self report measure of parentification (FRS-Y) and differentiation of self targeting at a total of 308 males and females students. For data analysis, we verified through correlation analysis, and hierarchical regression analysis using SPSS 18.0 program. In the middle school student group, the experience of parentification partially mediated the relationship between the birth order and differentiation of self while in the college student group, the experience of parentification did not show signification mediation effects on the relationship between the birth order and differentiation of self. This study bears its significance in that it empirically verified the difference in the effects of the birth order on parentification and differentiation of self according to age groups by targeting pre-adolescence middle school student groups and post-adolescence college student groups.