Purpose: This study aims to investigate the cusp variation pattern of the Korean mandibular second premolar and to determine the difference in tooth diameter and surface area using a virtual three-dimensional model. Methods: Dental casts from 69 students were scanned as a virtual dental models with a three-dimensional dental model scanner. Tooth diameter, absolute and relative individual areas, total crown area, the number of lingual cusps and central groove pattern were analyzed using RapidForm 2004. The Mann-Whitney U-test and the Kruskal-Wallis test were performed to verify sexual dimorphism, the difference in tooth diameter and surface according to the cusp variation pattern (α=0.05). Results: There was no significant difference except in buccolingual diameter (p<0.05) and buccolingual diameter at the cervix (p<0.05). The relative surface area of the total clinical crown was 65.76% for the buccal half and 34.24% for the lingual half, with a ratio of 2:1. In the case of the presence of two lingual cusps, the ratio was 21.47% for the mesiolingual half and 14.12% for the distaolingual half, with a ratio of 3:2. The dominant central groove patterns of the second premolar were the H-pattern (42.0%), followed by the Y-pattern (37.7%), then the U-pattern (20.3%). The relative buccal half was largest in the U-pattern central groove and the relative lingual half was largest in the Y-pattern central groove (p<0.05). Conclusion: This study is significant in that it measured quantitative surface areas and the findings could be a meaningful reference to comprehend dental anatomy in Koreans.
This study was conducted in order to be applied to basic data for enhancing dental hygiene students' psychological well-being. Data analysis was carried out T-test, ANOVA, correlation analysis and hierarchical regression analysis by using SPSS version 19.0. The order of factors that affect the psychological well-being from the most to the least was sufferance(β=.327) and strength(β=.294) of resilience, support from friends of social support(β=.238), optimistic of resilience(β=.109), major satisfaction(β=.090), academic year(β=.084), and deep sleep(β=.078). Based on the result, this study suggests a need for developing programme to increase students' psychological well-being and a follow-up study.
This study attempted to grasp the causal relationship, focusing on the double mediating effect of career identity and career decision self-efficacy in the relationship between grit and career preparation behavior. Data were collected by a self-entry method using structured questionnaire for dental hygiene student in area B. And it was analyzed using SPSS and Process Macro. The biggest factor directly influencing career preparation behavior was career identity, followed by grit and career decision self-efficacy. Through path analysis, grit indirectly had a significant influence on career preparation behavior through the mediating sense of career identity and the sense of career identity and career decision self-efficacy. This suggests that grit and career identity should be enhanced for active career preparation behavior, so it is intended to be used as basic data for career education contents development for college students majoring in dental hygiene.
International Journal of Advanced Culture Technology
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v.6
no.4
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pp.52-57
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2018
The purpose of this paper is to develop simulations that can be used for virtual education in dentistry. The virtual education to be developed will be developed with clinical training and actual case data of tooth extraction. This development goal is to allow dental students to learn the necessary surgical techniques at the point of their choice, not going into the operating room, away from time, space, and physical limits. I want to develop content using VR. Oculus Rift HMD, Optical Based Outside-in Tracking System, Oculus Touch Motion Controller, and Headset as Input / Output Device. In this configuration, the optimization method is applied convergent, and when the operation of the VR contents is performed, the content data is extracted from the interaction analysis formed in the VR engine, and the data is processed by the content algorithm. It also computes events and dental operations generated within the 3D engine programming and generates corresponding events through data processing according to the input signal. The visualization information is output to the HMD using the rendering information. In addition, the operating room environment was constructed by studying lighting and material for actual operating room environment. We applied the ratio of actual space to virtual space and the ratio between character and actual person to create a spatial composition at a similar rate to actual space.
The survey on dental health condition and eating habit of local residents in Daegu and Kyungbuk had been conducted. Through the analysis of influence of dental health condition on eating habit I could get the following result. The number of subjects of survey is 630. The period of survey is from June 2006 to September 2006. 1. General quality of subjects is that forty-four point four percent of subjects are male and fiftyfive pointsix percent are female. The age of thirty point one percent of subjects is between 20 and 29. Fifty-six point two percent of subjects are married. Fifty-one point four percent of subjects have above bachelor degree. Monthly income of forty-four point eight percent of subjects is less than one million won. Twenty-four point four percent of subjects are students. Fifty-five point seven percent of subjects are living in big cities. 2. Forty-seven point seven percent of male and fifty-one point eight percent of female answered their subjective dental health condition is bad. Marital status, age and academic background have relationship with answer. Forty-three point nine percent of married subjects and forty-one point five percent of divorced or bereaved subjects said they have bad dental health condition. The older he is or the lower academic background he has subjects think they have bad dental health condition. Forty-seven point four percent of non-educated subjects answered their dental health condition is bad. Forty-six percent of self-employed subjects and subjects who live in the country have tendency to think their dental health condition is bad. 3. About eating habit knowledge, male's knowledge of 2.03$\pm$0.20 is lower than female's of 2.08$\pm$0.21. This shows there is statistically significant difference(p<0.01). 4. There is significant relationship between subjective dental health condition and health condition of subjective. This means subject who has better health condition has also better dental health condition(37.5%). About subjective dental health condition, subject who eats restoratives has worse dental health condition. This shows there is a relationship between dental health condition and eating restoratives(p=0.004) and subject who works out steadily has better dental condition. 5. About relation between dental health condition and eating habit, subject who eats vegetables has worse dental health condition by fifty point seven percent. As cross tabulation result, p-value is 0.002. In level of significance of 0.05, there is statistically significant difference in eating habit. 6. It seems that eating habit has an effect on marital status, age, academic background, income and also on dental prosthetic treatment situation. Many subjects think their dental health condition is bad. About eating habit, subjects who eat meat have better dental health condition. Subjects who drink green tea and fruit juice has better dental health condition than who drink coffee and Balanced diet is good for dental health condition. As eating habit is important for developing dental health, government should make a proper program. Dental health education program especially for elderly, low-eduacted, residents in the country and poor people should be developed. Government, dental health organization, dental health specialist, associated research institution and people work in the press should be concerned and devote to improve quality of life. Primary prevention education will help for dental health.
To investigate the perception of the correlation between systemic diseases and oral health among some university students. The questionnaires were conducted on 485 students from 3 universities in Gwangju. As a result of the study, the female was higher than the male and was the highest in the fourth grade. Subjective health status, drinking status, smoking experience, and exercise were not significantly different in recognizing the association between systemic disease and oral health. The group with experience in oral health education recognized 3.18, and the group that practiced educational contents was highly recognized as 3.21. There was a significant difference between the two groups. Multiple regression analysis showed that major factor and grade factor influenced the perception of association between systemic disease and oral health. Therefore, it is necessary for university students to recognize the importance and necessity of periodical oral examinations. It is thought that the incidence of disease should be strengthened and enforced to recognize that there is a correlation with various diseases.
This study examined the experience of cosmetic surgery and its related factors in order to establish the correct values for female college students' appearance. Data were collected from 283 female college students in Gyeonggi, Chungcheong, and Jeolla-do provinces, and analyzed by Chi-square test, T-test and Binary logistic regression using SPSS 18.0 program. As a result, the experience rate of cosmetic surgery was 66.1%, and the experience of cosmetic surgery was high as the grade was increased. The most common source of information was 'family and people around' at 45.9%, and the cosmetic surgery type 'eye surgery' was the highest at 25.8%. Appearance of interest and cosmetic surgery recognition were higher than those who had no cosmetic surgery experience. Factors related to cosmetic surgery experience were grade, allowance, and appearance interest. It is necessary to prepare basic data on cosmetic information and to develop a program to establish proper beauty values, and education and counseling to make rational decisions about cosmetic surgery will be required.
Objectives: The objective of the study is to investigate oral health behavior and oral health education experience in Korean adolescents from the ninth(2013) web-based survey of Korean youth risk behavior. Methods: The subjects were 72,435 students through the ninth 2013 web-based survey of Korean youth risk behavior conducted by the Ministry of Education, Science, and Technology, the Ministry of Health and Welfare, and the Korea Centers for Disease Control. The questionnaire consisted of socio-demographical characteristics of the subjects, oral health behavior, and oral health education experience. Data were analyzed by SPSS 18.0 program. Results: Oral health education had much influence on tooth brushing after lunch, oral cavity disease prevention, sealants, fluoride application, scaling experience, and consumption of vegetables, milk, carbonated soft drinks, noodles, and snacks. The oral health education had a great impact on those who took good oral health behavior into action. Conclusions: It is very important and necessary to develop the continuing effective oral health education program for the adolescents and make them tale into action.
Journal of the Korea Academia-Industrial cooperation Society
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v.10
no.11
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pp.3451-3457
/
2009
The survey of the 856 students of the dental hygiene departments in 6 universities in Gyunggi, Kangwon, Chungnam, Gyungbuk, and Gyungnam region was carried out. The purpose of the survey is to find their satisfaction measurement with the department and how they recognize the dental hygienist as well as why they selected the dental hygiene department when they applied for university. The result, analyzed by SPSS 15.0, statistically shows that the measurement of satisfaction by each academic year represents the meaningful difference (P<0.05) in all variables such as the "satisfaction with people", "satisfcation with lectures", "satisfaction with facilities", "satisfaction with activities", and "satisfaction with the department characteristic". The measurement of satisfaction by the decision-making factor for the department selection shows the meaningful difference (P<0.05) in the variables of "satisfaction with lectures", "satisfaction with activities", and "satisfaction with the department characteristic". In the case of the measurement of satisfaction with counselling by each academic year, the 3rd year student shows the highest in the career counselling. All the groups recognize for this question as "higher" or "yes", while the higher academic year students were gradually less satisfied. In the case of the level of recognition by each academic year, the 1st year student shows high in the variables of "practical work recognition" and "vocation recognition" and the difference among groups shows statistically meaningful difference(P<0.05).
This study aims to identify the status of oral care of professional soldiers and analyze the relationship between oral care needs and oral health symptoms based on oral health recognition, thus providing an opportunity to create a system for improving oral health of professional soldiers. The study was conducted on a total of 232 military personnel aged 19 or older who were employed in the military. The questionnaire for this study was commissioned to respond by explaining the purpose of the study and how to respond to the survey by telephone with the selected sub-employer. The content included in the questionnaire consisted of general characteristics, oral care status, and awareness of dental hygienists. When the subjective oral health condition was poor, normal, or good, it was all shown that the toothbrush was done more than three times a day, and the oral examination was all examined. In particular, 68.1 percent of the respondents said they were in good subjective health. Preventive treatment was the highest in the group with good subjective oral health. Of the total respondents, 83.6 percent said "yes" to the question of knowing dental hygienists, while 65.5 percent said "yes" to the question of whether they know the work of dental hygienists, recognizing that most of the respondents were aware of dental hygienists and their work. Both the group that said they knew the dental hygienist and the group that said they did not know answered 43.5% as an assistant. In conclusion, oral health projects will have to be carried out in line with military situations in order to maintain a healthy oral state of professional soldiers, and long-term planning for active oral health care, especially as an important role of personnel in charge of health care in the military is needed.
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