• Polymer(Korea)
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• v.28 no.4
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• pp.321-327
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• 2004

The applications of dental restorative composite resins containing 2,2-bis [4-(2-hydroxy-3-me-thacryloyloxy propoxy) phenyl] propane as a base resin, and triethylene glycol dimethacrylate, as a diluent, were often limited in dentistry due to the relatively large amount of volumetric shrinkage that occurs during the curing reaction. In this study, in order to reduce volumetric shrinkage of the current dental restorative composite resin, asymmetric spiro orthocarbonates were synthesized and then the characteristics of resin composites containing them were explored. The volumetric shrinkage of the dental composites containing spiro orthocarbonates was decreased approximately 45%. However, the curing characteristics and mechanical properties of the new dental composites were slightly poor than those of the commercially available dental composite.

• Journal of Korean Academy of Dental Administration
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• v.9 no.1
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• pp.51-60
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• 2021

The purpose of this study is to examine the importance of healthy attachment formation by examining the effects of dental hygiene students' adult attachment patterns on depression, self-esteem, empathy, and career choice, and to present basic data for career guidance that considers individual characteristics. Students enrolled in the dental hygiene department at a university in Daejeon were the subjects of this study, and data were collected from September 14 to October 14, 2020 through self-reported questionnaires. Frequency analysis, ANOVA, correlation analysis, and multiple regression analysis were performed. As a result of classifying adult attachment styles into three types, out of a total of 158 people, 62 (39.2%) had the avoidant attachment style, 56 (35.4%) had the secure attachment style, and 40 (25.3%) had the anxious-ambivalent attachment style appear. Self-esteem according to attachment type (F=26.224, p<0.0001), empathy (F=3.944, p<0.05), depression (F=12.702, p<0.0001), career indecisiveness (F=4.367, p<0.05). Based on the results of identifying the sub-factors that affect the dental hygiene and adult attachment styles of students with depression, self-esteem, empathy and career choice, this study intends to use them as reference materials for career decision taking into account individual characteristics.

• Journal of Korean society of Dental Hygiene
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• v.17 no.4
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• pp.681-691
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• 2017

Objectives: The purpose of this study is to investigate the relationship between education experience, awareness and practice of infection control during the prosthodontic treatment in clinical dental hygienists. Methods: A self-reported questionnaire was answered by 255 clinical dental hygienists in Seoul and Gyeonggi areas from October 10 to December 30, 2016. The questionnaire consisted of general characteristics of the subjects (8 items), dental prosthesis infection education experience (5 items), dental prosthesis infection awareness (5 items) and dental prosthesis infection practice (14 items) based on Likert 5 point scale. For statistical analysis, SPSS Statistic 22.0 was used. Results: A significant association was shown among education experience, awareness and practice of infection control during the prosthodontic treatment of clinical dental hygienists (p<0.001). Dental hygienists count, dental prosthesis infection education experience and awareness had positive influences, but the age group from 26 to 30 had negative influence on dental prosthesis infection practice. Conclusions: The study confimed that the dental prosthesis infection education program and continued education is necessary for the safety and health of patients, and to prevent the cross-infections of the clinical dental hygienists.

• Journal of dental hygiene science
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• v.22 no.2
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• pp.108-114
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• 2022

Background: Students in the department of dental hygiene are exposed to injections and sharp instruments during clinical practice. Therefore, it is necessary to develop measures for a safe practice environment. This study aimed to investigate dental stabbing accidents caused by dental instruments during clinical practice among students in the department of dental hygiene and suggest appropriate preventative measures. Methods: This study was conducted from May 1 to June 30, 2016, with students in the department of dental hygiene located at several universities in Seoul and Gyeonggi area. The study included 339 participants. A frequency analysis was performed to determine the general characteristics of dental infection control. A cross-analysis was conducted to identify the relationship between dental infection control education, stabbing accident prevention education, and treatment after stabbing accidents with a dental instrument. Results: Among the participants, 81.1% received dental infection control education and 66.4% received stabbing accident prevention education. Only 50.9% received hepatitis B vaccinations. Conclusion: Dental infection control education and stabbing accident prevention education were shown to be effective in preventing dental instrument stabbing in students. However, post-accident processing, such as reporting to upper management and medical treatment after the accident, was insufficient. Therefore, it is necessary to present a treatment flowchart for dealing with stab accidents in clinical practice for students in the department of dental hygiene and strengthen education.

• Restorative Dentistry and Endodontics
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• v.40 no.1
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• pp.1-13
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• 2015

Advancements in bio-ceramic technology has revolutionised endodontic material science by enhancing the treatment outcome for patients. This class of dental materials conciliates excellent biocompatibility with high osseoconductivity that render them ideal for endodontic care. Few recently introduced bio-ceramic materials have shown considerable clinical success over their early generations in terms of good handling characteristics. Calcium enriched mixture (CEM) cement, Endosequence sealer, and root repair materials, Biodentine and BioAggregate are the new classes of bio-ceramic materials. The aim of this literature review is to present investigations regarding properties and applications of CEM cement in endodontics. A review of the existing literature was performed by using electronic and hand searching methods for CEM cement from January 2006 to December 2013. CEM cement has a different chemical composition from that of mineral trioxide aggregate (MTA) but has similar clinical applications. It combines the biocompatibility of MTA with more efficient characteristics, such as significantly shorter setting time, good handling characteristics, no staining of tooth and effective seal against bacterial leakage.

• The Korean Journal of Health Service Management
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• v.12 no.2
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• pp.101-112
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• 2018

Objectives : This study examined the influence of socio-demographic, health-related, and oral health-related characteristics on adolescent DMFTs. Methods : The subjects in this study were 1,129 adolescents selected from the 6th national health and nutrition examination survey data. To determine the factors influencing dental caries, a regression analysis using a complex-sample generalized linear model was conducted after adjusting for confounding factors. Results : DMFTs were smaller among boys than girls, and smaller in the "13-15 age group" than in the "16-18 age group." In terms of household income, DMFTs were larger in the "lower," "lower-middle," and "upper-middle" income brackets than in the "upper" income bracket. DMFTs were smaller among adolescents with a history of smoking than those who had never smoked. Conclusions : In order to improve the oral health of adolescents, oral health-promotion programs should be provided for girls, high school students, students from low-income families, smokers, and those who consider themselves to have poor oral health.

• Journal of Korean society of Dental Hygiene
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• v.11 no.6
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• pp.939-949
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• 2011

Objectives : The purpose of this study was to examine the job awareness of dental hygiene students about a dental hygienist, what duties they wanted to do as dental hygienists, their awareness of college courses related to the job performance of dental hygienists and whether they viewed the courses as what's most widely utilized for the clinical job performance of dental hygienists. It's ultimately meant to help provide good education for dental hygiene students to have the right understanding of dental hygienists and bolster their professionalism. Methods : The subjects in this study were 301 dental hygiene students in four different colleges located in the metropolitan area. A survey was conducted to find out their satisfaction level with the department of dental hygiene, personal characteristics, awareness of college courses and awareness of the duties of dental hygienists. Results : The group of students who deemed the life span of the dental hygienist occupation to be long put more significance on the college courses that should focus on job performance. As for the relationship between their personal characteristics and awareness of the college courses, their satisfaction or dissatisfaction with the department and their ideas on the life span of the occupation made significant differences to that. The group of students who considered the life span of the occupation to be longer thought that the college courses would be more linked to the duties of dental hygienists and their job performance and should be given more weight, and there were significant differences among them in their view of the life span of the occupation and awareness of the college courses that should be given more weight(p<.05). Their view of how much the college courses would be linked to the duties of dental hygienists had a statistically significant correlation to that of the college courses that should focus on the clinical job performance of dental hygienists. Conclusions : The above-mentioned findings suggest that as part of the regular curriculum, the kind of education that aims at boosting the professionalism and job performance of dental hygienists as experts should be provided for dental hygiene students to build the right values as professional dental hygienists.

• 대한치과보철학회:학술대회논문집
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• 2003.04a
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• pp.69-69
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• 2003

• The Journal of the Korean dental association
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• v.29 no.8 s.267
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• pp.586-595
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• 1991

• Journal of dental hygiene science
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• v.7 no.2
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• pp.89-96
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• 2007

The purpose of this study was to examine the relationship between the self-expression level of dental hygiene students related to communicative competence and their stress during clinical practice and what affected their stress. The subjects in this study were 125 dental hygiene students in W college, on whom a survey was conducted from September 18 through 30, 2006. After the collected data were analyzed with SPSS WIN 10.0 program, the following findings were acquired: 1. When a factor analysis was made to evaluate the self-expression of the students, there appeared three different categories of self-expression: voice/content, facial expression/attitude and sentiment. The three made a 58.1% prediction of their self-expression. As for overall reliability, they turned out highly reliable(Cronbach'a = .881). 2. The dental hygiene students got a mean of 3.58 out of possible five points in self-expression, which indicated that they expressed themselves relatively well. Concerning connections between their general characteristics and self-expression level, those who were inactive during clinical practice got a mean of 3.28, whereas the others who were active got a mean of 3.85. It implied that those who took a more active attitude to clinical practice expressed themselves better(p < .01). The person with whom they found it hard to get along made a statistically significant difference to their self-expression(p < .05). The students who didn't fare well with dental hygienists got the best score(3.70). The second best group(3.53) didn't get along with dentists, followed by assistant nurses(3.46) and patients/caregivers(3.31). As for the impact of the field of dream job, the students who hoped to work or study overseas(4.21) excelled in self-expression those who wanted to be hired in a general hospital, to go onto a school of higher grade and to work in a public dental clinic(p < .05). Among the general characteristics, satisfaction level with major, health status and motivation of choosing dental hygiene made no statistically significant differences to their self-expression. 3. Regarding relations between self-expression level and stress about clinical practice, those who didn't express themselves properly in terms of sentiment scored higher in stress level(3.65). Their stress was statistically significantly different according to self-expression level (p < .05). 4. As for the influence of self-expression and general characteristics on stress with clinical practice, sentiment was selected from among the self-expression categories as a decisive factor to affect stress. Their stress varied statistically significantly with that(p < .05). In contrast, their demographic variables made no statistically significant difference to that, which made a 79.2% prediction of it.