Having more positive parameters of MetS and low HDL-cholesterol parameter had an independent relationship with the prevalence of gingivitis, which may be determinants for the future periodontal diseases even in adolescents.

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Objectives:The purpose of the study is to investigate the degree of disparity in unmet dental care needs in Korean adults. Methods: Using data from the 5th Korea National Health and Nutrition Examination Survey, 9,573 adults between 25-54 years old were selected. The reason for unmet dental care needs was analyzed by chi square test and logistic regression analysis. Results: Those having unmet oral health care needs accounted for 41.3%. The majority of the reason (1,036 persons) was "busy with school or work" and the second reason was financial burden (1,028 persons). Those who were female individuals (OR: 1.14, CI: 1.02-1.27), having higher income (OR: 0.85, CI: 0.72-0.99), and perceiving poor oral health status (OR: 5.68, CI: 4.64-6.95). Conclusions: It is necessary to extend and implement the nationwide public assistance of dental care services among the second-to-the bottom and low income people.

Objectives:The purpose of the study is to investigate the cognition of dental caries prevention by the level of socioeconomic status based on Gallup survey in Korea. Methods: This study was done by Korean Gallup survey in October, 2010. A trained researcher carried out the computer aided telephone interview(CATI) using a structured questionnaire. This study was based on the latest population statistics of resident registration and whole country's phone data base. This survey included 869 selected Korean adults over 19 years old, and they were asked to answer a CATI. The questionnaire consisted of general characteristics of the subjects and socioeconomic factors including age, gender, education level, monthly income, and residential area. Cognition of dental caries prevention was measured by Likert 4 scale including 'much', 'a little', 'rarely', and 'never'. The attitude toward dental caries prevention consisted of daily tooth brushing frequency, experience of oral health education, regular dental checkup, chewing gums(xylitol), regular scaling, and use of oral care devices. Data were analyzed using SPSS 20.0 for frequency analysis, t-test, chi-square test, and one way ANOVA. Cronbach's alpha was 0.462 in oral health concern and attitude. Results: Mean of the frequencies of daily tooth brushing in men was 2.54 times and 2.78 in women. By the comparison to age group, 35-44 years old group had 2.82 times, 19-37 years old group had 2.72 times, and 45-64 years old group had 2.51 times. The level of education and monthly income was proportional to the tooth brushing frequency. Highly educated and higher monthly income group received regular dental checkup within a year and used the auxiliary oral health care devices. Conclusions: This study suggested the relationship between dental caries prevention and socioeconomic status. It is important to provide the low socioeconomic group with the better oral health promotion services in the future.

This study was performed to identify the oral health knowledge and perception of Chinese students' studying in Korea who received the oral health education program. This research was based on self-questionnaire survey which 94 Chinese students in Korea. An interview questionnaire was used to collect information on general characteristics and oral health knowledge and behaviors. Data were statistically analyzed by x²-test, t-test, one-way ANOVA by using SPSS WIN Ver. 20.0. Proper tooth brushing method has the highest score of 4.40 out of 5 in dental caries preventive behavior, 4.53 out of 5 in periodontitis preventive behavior. It is necessary to investigate motivation factors and influential factors changing the oral health behaviors, knowledge and attitude related to oral health in Chinese Students' Studying in Korea.

In Korea, two kinds of National oral health surveys have been conducted to develop various oral health indices during the past decade. The system still needs to be improved further in terms of quality control for the examination system, data management, personnel empowerment, etc. Therefore, this study compares the National Oral Health Survey system of the United States (US) with that of South Korea. The US national surveys related to oral health were set from the 1970s, whereas Korea's national surveys have been initiated only recently; consequently, the US system is well organized and systematically managed by the professional personnel in governmental institutes, such as the Division of Oral Health in Centers for Disease Control. Furthermore, this study examines the scope of the examiner training program, and the methods for developing and implementing a standardized examination environment, data quality control, a data input system with automatic error checking, and data back up in the US. Considering the various factors involved in conducting nationwide epidemiological surveys as mentioned above, the structure and implementation methods of oral surveys in Korea clearly need to be improved.

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