• Journal of the Korea Convergence Society
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• v.11 no.11
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• pp.443-450
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• 2020

The purpose of this study was to examine the inter-rater and intra-rater reliability of the oral mucosa pressure ulcer classification system based on the photographs. The study consisted of two stages; development and evaluation. In the developmental stage, 9 photographs of 82 were selected. In the evaluation stage, a total of 49 participants were invited web-based survey by e-mail. Cohen's weighted kappa and Krippendorff's alpha were used to define the inter-rater reliability. Nine photographs consisted of two, three, three, and one in normal, stage 1, stage 2, and stomatitis, respectively. The inter-rater reliabilities of wound care nurse specialist, intensive care nurse specialist, and dentist groups were 0.75, 0.70, and 0.78, respectively. The intra-rater reliability was 0.73. The inter-rater and intra-rater reliabilities of the oral mucosa pressure ulcer classification system showed substantially good agreement.

• Journal of the Korea Computer Graphics Society
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• v.8 no.1
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• pp.13-20
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• 2002

Recently, there is a great demand for artificial teeth prostheses made of the materials which are sintered at $1500^{\circ}C$ such as zirconia ceramic. Since degree of strength of the materials is very high, however, it is very difficult for technicians to manually fabricate the prostheses for these ceramics. So the prostheses have been fabricated by using CNC(computer numerical control) machines. In doing them by using CNC, it is very important that the prostheses satisfying dentists's requirements are accurately modeled into 3D objects. In this paper, we propose an effective method for modeling single cores such as single caps and Conus cores, which are the main those of artificial teeth prostheses. And we also present the visual examples of 3D models for these single cores modeled by the proposed methods. In special, the method has used Minkowski sum and ZMap for modeling the single cores.

• Journal of Korean society of Dental Hygiene
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• v.13 no.1
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• pp.45-60
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• 2013

Objectives : The number of North Korean refugees is remarkably increasing nowadays and there are many social and cultural issues related to their settlements in Korea. Stereotyping of group is generally unique and has influences on emotions and behaviors. The aim of this study was to investigate the relationship among stereotyping, emotion and service behavior of South Korean dentist towards North Korean refugee. Methods : Questionnaires for stereotyping, emotions and service behaviors were devised based on previous researches. Two-hundred and eighteen Korean dentists were randomly chosen and questionnaires were distributed. Correlation analysis, reliability analysis and primary component analysis were performed. Student t-test and one-way ANOVA were done to elucidate differences according to demographic factors. To examine the relationship among constructs, regression analysis was performed. Results : Stereotyping, emotions, and service behaviors are significantly related each other construct. South Korean dentists' stereotyping and emotions toward North Korean refugees are significantly different from those toward South Korean but service behavioral intentions were not different according to any demographic factor. Conclusions : The results imply that more contacts and education system are necessary to South Korean dentists to change their negative stereotyping and emotions toward North Korean refugees although their service behaviors are not affected at the moment.

• Korea Journal of Hospital Management
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• v.16 no.4
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• pp.1-16
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• 2011

The purpose of this study is to examine impacts of servant leadership perception of dental hygienists on organizational commitment, job satisfaction and turnover intention as strong predictors of turnover rate. These data were collected from the structured questionnaire survey, from April 1 through April 30, 2011, to 383 people among those in the field of dental hygiene affairs, working for nine dental hospitals or twenty-four dental clinic under two dental university hospital in capital area. The principal findings of this research are as below; First, servant leadership perception had a significantly positive influence on job satisfaction and organizational commitment. Also servant leadership perception of dental hygienists had a significantly negative influence on turnover intention. Second, job satisfaction and organizational commitment of dental hygienists has a negative influence on turnover intention. Third, servant leadership perception of dental hygienists were revealed as a meaningful effects ones on job satisfaction and organizational commitment, but they didn't have meaningful effect on turnover intention. However, we can understand that servant leadership perception have indirect effect on turnover intention via job satisfaction and organizational commitment. This result indicates that the managers of dental hospital and clinic should perceive that the consistent management effort to improve servant leadership can increase job satisfaction, and finally will increase the organizational commitment that means the loyalty to organization. In short, hospital operators and managers should examine each manager's qualification, type and style of leadership in the hospital organization, and they must develop lasting programs for effective education and training for developing characteristics of leadership are in needed to have managers with appropriate managerial mind to respective post and status.

• Proceedings of the Korean Vacuum Society Conference
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• 2013.08a
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• pp.175-175
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• 2013

현재 치과에서 상용되는 치아미백법은 과산화수소와 레이저를 사용하여 의사가 직접 치료를 하고 있다 [1]. 단기간에 높은 미백효과를 얻기 위해, 고농도의 과산화수소를 이용하게 되는데, 이는 암 또는 심장병 등을 유발시키는 원인이 될수 있음으로 인체에 매우 유해하다 [3,4]. 우리는 식품의약품안정청에서 규제하고 있는, 카바마이드 퍼옥사이드(15%)를 사용하였다. 카마바이드 퍼옥사이드(15%), 수증기, 저온 대기압 플라즈마 제트를 사용하여 미백효과를 관찰하였다. 기체 유량은 1,000 sccm 이며, 공기와 질소를 사용하였다. 미백효과를 보기 위한 대상으로는 우치(牛齒)를 사용하였으며, 플라즈마를 처리하여 미백효과를 관찰하였다. 실험 대조시료군으로는 카바마이드 퍼옥사이드(15%)와 수증기(0.4%)를 첨가한 다음, 공기 플라즈마와 질소 플라즈마를 조사하여 비교해보았다. 수증기를 첨가한 이유는 활성산소의 농도를 높이기 위함이며, 탁월한 미백효과를 얻을 수 있다. 실험을 통하여 우치에 카바마이드 퍼옥사이드(15%)와 수증기(0.4%)를 처리한 경우 플라즈마의 미백효과가 탁월함을 보였다. 이때 CIE색좌표 ($L^*a^*b^*$)에서 명도도가 높아짐을 보았다. 미백효과에 대한 측정은 측색분광기(cm-3500d)를 이용하였다. 라만은 빛이 어떤 매질을 통과할 때 빛의 파장을 변화시켜 빛의 일부는 진행방향에서 이탈해 다른방향으로지행하는 현상을 산란이라고 한다. 이를 이용하여 빛의 파장을 변화시키는 현상을 라만산란이라고 한다. 이것을 이용하여 같은 우치의 표면을 플라즈마 처리 전 후를 라만을 통해 측정하였다. 대기압 저온 플라즈마에서 발생되는 ROS는 미백효과에 큰 영향을 미친다. 모든 실험의 플라즈마 처리시간은 최대 20분까지로 하였다.

• Journal of the Korea Convergence Society
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• v.10 no.1
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• pp.299-305
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• 2019

The purpose of study was to investigate the effects of career decision efficacy, learning Flow, and academic achievement on department adaptation of dental hygiene students. The subjects of the study are self-administered surveys of 200 students who indicated their intention to participate. 181 questionnaires were analyzed using SPSS 18.0. The results of this study show that career decision efficacy, learning flow, academic achievement affect to major satisfaction, major confidences, major attachment. The results of this study show that career decision efficacy, academic achievement affect to major vision. Some dental hygienists students need support systems such as learning methods and educational environment that can improve academic achievement and learning commitment in order to help students adapt to their department. In addition, education and career support for career decision efficacy should be continuously maintained.

• The Journal of Korean Society for School & Community Health Education
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• v.20 no.2
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• pp.81-91
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• 2019

Objectives: It helps dental clinic to work 1:1 consulting and select the properties of the Kakao Talk message. The study was designed to determine the influence of users cognitive and emotional responses by message attribute that affect intention of use of dental clinic. Methods: This study targeted 297 peple Kakao Talk users aged 20-50 s, in Seoul, Gyeonggi-do and Incheon from, February 6 to April 7, 2017. We analyzed the data with frequency analysis, t-test, one-way ANOVA, and multiple regression analysis by using SPSS ver 24.0(SPSS Inc, Chicago, USA). The significance level for significance was set at 0.05. Results: Among the user's responses about the event type Kakao talk message, the ease(${\beta}=0.121$, p<0.01), usefulness(${\beta}=0.148$, p<0.001), affinity(${\beta}=0.471$, p<0.001), satisfaction(${\beta}=0.249$, p<0.001). affected intention of use of dental clinic. Among the user's responses about the dental information type, the ease(${\beta}=0.150$, p<0.05), expertise(${\beta}=0.151$, p<0.05), satisfaction(${\beta}=0.237$, p<0.001) affected intention of use of dental clinic(p<0.05). Among the user's responses about the general public relations type, the expertise(${\beta}=0.254$), affinity(${\beta}=0.193$), satisfaction(${\beta}=0.474$) affected intention of use of dental clinic(p<0.001). Conclusion: It is necessary to elicit a positive intention of use of dental clinic through a highly emotional response from the users to improve the image of the dental clinic and to attract patients.

• The korean journal of orthodontics
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• v.35 no.1 s.108
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• pp.69-81
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• 2005

As one of the variations in growth and development of the craniofacial complex. malocclusion shows lack of concordance In the recognition and severity of malocclusion for dentists as well as the acceptance and need of orthodontic treatment for the patient The purposes of this study were 1) to examine the relationships between objective malocclusion severity aid subjective treatment difficulty. 2) to evaluate the effect of malocclusion components to the subjective perceived difficulty of treatment. 3) to establish the weighted values of malocclusion components to reflect the treatment difficulty 100 pairs of dental casts with the general characteristics of malocclusion. were selected from the orthodontic departments of Kyunghee University and Samsuug Medical Center. The severity of malocclusion was evaluated by the author with the PAR index The perceived treatment difficulty and the estimated treatment duration on these dental models were evaluated by 8 experienced orthodontists. The relationships between the objective malocclusion severity and the subjective treatment difficulty were statistically evaluated. and the weighted values of malocclusion components to reflect treatment difficulty were statistically formulated. There were significant relationships between objective malocclusion severity and subjective treatment difficulty The malocclusion components which significantly affected the treatment difficulty and their weighted values in parentheses were as follows upper anterior alignment(1). overbite (2). buccal occlusion (3) middline (4), and overjet (5). This study Provides the fundamental principle to evaluate the objective malocclusion severity which is reflected by the subjective treatment difficulty of Korean orthodontists.

• Journal of Periodontal and Implant Science
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• v.33 no.4
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• pp.747-753
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• 2003

면역글로불린의 Fc 부분에 대한 수용기인 $Fc{\gamma}R$는 세균에 대한 인식, 결합과 포식작용과정에서 중요한 역할을 한다. 이 $Fc{\gamma}R$에서 $Fc{\gamma}R$IIa, $Fc{\gamma}R$IIIa, $Fc{\gamma}R$IIIb의 유전자 다형성이 치의학 분야에서 연구되고 있다. $Fc{\gamma}R$IIa에서는 두 번째 세포외 면역글로불린 유사 영역의 131번째 아미노산에서 아르기닌($Fc{\gamma}R$IIa-R131) 혹은 히스티딘($Fc{\gamma}R$IIa-H131)을 갖고 있으며, $Fc{\gamma}R$IIIa에서는 두번째 세포외 영역의 158번째 아미노산이 발린($Fc{\gamma}R$IIIa-158V) 혹은 페닐알라닌($Fc{\gamma}R$IIIa-158F)을 갖고 있다. $Fc{\gamma}R$IIIb에서는 첫 번째 세포외 면역글로불린 유사영역의 4개의 아미노산의 유전자 다형성으로 인해서 $Fc{\gamma}R$IIIb-NA1과 $Fc{\gamma}R$IIIb-NA2의 두가지 유전자 다형성을 보이고 있다. 이번 연구는 치주적으로 건강한 한국인에서 $Fc{\gamma}R$IIa, $Fc{\gamma}R$IIIa, $Fc{\gamma}R$IIIb에 대한 유전자형의 분포를 조사하고자 한 것으로 서울대학교 치과병원에 근무하는 치과의사, 치과위생사, 간호조무사 및 서울대학교 치과대학 4학년 학생 중 치주낭 깊이와 부착소실이 4mm 이하인 치주적으로 건강한 한국인 65명을 대상으로 하였다. $Fc{\gamma}R$IIa, $Fc{\gamma}R$IIIa, $Fc{\gamma}R$IIIb의 유전자 다형성은 분리한 DNA에 각 대립유전자에 특이성을 지닌 primer를 넣고 PCR(polymerase Chain Reaction)법을 이용하여 증폭시킨후 전기영동법을 이용하여 각 대립유전자의 존재를 확인함으로써 결정하였다. $Fc{\gamma}R$IIa의 유전자 다형성은 R/R131, R/H131, H/H131의 유전자형에 대하여 각각 7.7%, 38.5%, 53.8%의 분포를 보였으며, $Fc{\gamma}R$IIIa의 158V/V, 158V/F, 158F/F 유전자형에 대하여 각각 7.7%, 35.4%, 56.9%의 분포를 보였다. 또한 $Fc{\gamma}R$IIIb의 NA1/NA1, NA1/NA2, NA2/NA2 유전자형은 각각 33.9%, 53.8%, 12.3%의 분포를 보였다. 이를 바탕으로 각 대립유전자의 발생빈도 계산한 결과 $Fc{\gamma}R$IIa의 R131과 H131이 26.9% 73.1%로 나타났으며, $Fc{\gamma}R$IIIa의 158V, 158F의 유전자형이 25.4%, 74.6%로 나타났다. $Fc{\gamma}R$IIIb의 NA1, NA2 유전자형의 발생빈도는 60.8%, 29.2%로 나타났다. 이번 연구는 치주적으로 건강한 한국인에서의 $Fc{\gamma}R$IIa, $Fc{\gamma}R$IIIa, $Fc{\gamma}R$IIIb에 대한 유전자형의 분포를 조사한 것으로, 이후 치주질환자의 유전자형 분포와의 비교로 치주질환과 $Fc{\gamma}R$IIa, $Fc{\gamma}R$IIIa, $Fc{\gamma}R$IIIb의 유전자다형성과의 관련성에 관한 추가적인 연구가 필요할 것으로 여겨진다.

• Journal of dental hygiene science
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• v.17 no.6
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• pp.543-551
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• 2017

The purpose of this study is to analyze the experience of the parents who examined the first infant oral examination and to understand how to improve the practical oral examination business. In-depth interviews were held with 10 parents who did the first infant oral examination, and their children's age was less than 18 to 29 months. The following conclusions were obtained by deriving the concepts and categories of the recorded contents. First, the main reason for the unsatisfactory examination of this study was that it was formal. Parents were disappointed in the fact that they did not look at the mouth of the child at the same time as it was fast and they said because it is carried out free of charge, it is more formal than the examination for general dental treatment. Second, most of the participants questioned whether they should resume infant oral examination. Third, it appears that the tooth number or dental terminology in the result notice is difficult to understand. Fourth, the opinion on the improvement of the infant oral examinations was should provided that the oral health management information after examination and the direct oral health management method education at the examination. In addition, we identified the need for parents' oral health care education for infants. Therefore, it has been confirmed that in order for the infant oral examination and young children to be practically carried out, the problems should be improved by collecting opinions of the parents. Also it is necessary to search for efficient business management method through repeated research related to infant oral examination.