Objective: The purpose of the study was to investigate the factors affecting unmet dental care needs of Korean using 6th Korean National Health and Nutritional Examination survey(KNHANES). Methods: The subjects were 13,718 Koreans from the 6th KNHANES data. The questionnaire consisted of general characteristics of the subjects, reason for dental care needs by socio-economic status and unmet dental care needs. Data were analyzed using SPSS 21.0 program. Results: The proportion of unmet dental care needs accounted for 27.4% and the main reasons were financial burden and less priority. Male had 0.21 times less unmet dental needs than female. Low, mid low, and mid high economic income groups had 1.27, 1.24, and 1.08 times respectively more unmet dental care needs than high income group. Those having good and average self-perceived oral health status experienced 0.83 and 0.63 times less dental care needs. Conclusions: Socio-economic factors and health status were the important factors of unmet dental care needs and it is necessary to provide a variety of public service of dental care for the low income group.
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.Objectives: The purpose of this study was to evaluate the change in surface microhardness of sound enamel of bovine teeth due to commercial alcoholic drinks. Methods: The experiment group comprised of wines, makgeollis, and beers with low pH, while distilled water was used as the control. The two experiment groups were administered soju having the highest (SojuH) and lowest (SojuL) pH. Drinking wines were classified into 2 groups: agitated (wine A) and nonagitated (wine NA) wines. The pH values, buffering capacity, and concentrations of fluorine, calcium, and phosphorus of both the wine groups were measured. Eighty-four bovine specimens were divided into seven groups (N=12) and were immersed for 1, 3, 5, 10, 30, 60, and 120 min, respectively. The surface microhardness was measured using a microhardness tester before and after treatment with each alcoholic drink. After 120 min, the enamel surface was examined using a scanning electron microscope (SEM). The statistical methods used in this study were one-way analysis of variance (ANOVA) and repeated-measure ANOVA. Results: The differences in the surface microhardness (∆VHN) values obtained before and after treatment for 120 min were statistically significant among groups. Makgeolli, wine A, and wine NA significantly eroded the enamel after 120 min. However, sojuH and sojuL had an effect similar to that of distilled water, which was used in the control group. Beer caused slight enamel erosion. SEM images revealed that makgeolli, wine A, and wine NA caused significant erosion of the enamel surface, while beer caused slight erosion. SEM observation results were similar to those obtained after surface microhardness evaluation. Conclusions: The study findings suggest that alcoholic drinks, such as makgeolli and wine, with organic acids and a pH value less than 4.0 can cause tooth enamel erosion. Therefore, alcoholic drinks with low pH values and organic acid composition should not be retained for long periods in the mouth.
Objectives : The purpose of this study was to investigate the effects of stress, self-esteem, and social support in dental hygiene students.Methods : The data were collected by self-reported questionnaires from 518 students in three colleges in Gwangju, Gyeonggi-do, and Jeollabuk-do. Korea. The questionnaire consisted of stress, self-esteem and social support. The data were analyzed by descriptive statistics, t-test, ANOVA, Scheffe test, Pearson's correlation coefficients and Stepwise multiple regression using SPSS/WIN 18.0 program.Results : The mean(±SD) scores of stress, self-esteem and social support were 3.13(0.52), 3.31(0.55), and 3.66(0.48), respectively. A significantly negative correlations was shown in self-esteem(r=-0.360, p 0.001) as well as social support(r=-0.138, p 0.05) in relation to stress. 〈 〈 Conclusions : It is necessary to develop and apply nursing intervention to promote self-esteem, social support, and to reduce stress in dental hygiene students.
Objectives : The purpose of the present study was to obtain the data for oral health improvement and promotion programs for the elderly people. Methods : Subjects were 382 elderly people over 65 years old living in Seoul and Gyeonggi-do for more than 3 months from May to July 2012. Except 23 incomplete answers, 359 data were analyzed.
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