Hye-Jung Jin

Current status of the types of dental filling and preventive materials among children in mixed dentition

Abstract The purpose of this study was to examine current status of the types of dental filling materials and preventive materials among Korean children in mixed dentition. Seven elementary schools were randomly selected from four metropolitan regions in South Korea. The total of 711 children aged 9-10 years old were examined with their parents’ informed consents. Oral examination was conducted by one trained dentist. The mean number of dfs was 7.9±8.0 (ds=1.3±2.5, fs=6.6±7.6) and DMFS was 1.4±2.2 (DS=0.2±0.8, FS=1.1±2.1). The average of filled surfaces using amalgam, composites, sealants, and others were 2.8±3.9, 1.6±2.8, 2.9±3.2, and 4.5±7.0, respectively. The use of dental filling material according to region, the amalgam was the highest in Daegu and the resin was the highest in Pusan. In permanent teeth, about 70% of total filling surfaces had sealant and about 20% was resin fillings, and the proportion of amalgam filling surfaces was less than 10%. Key Words : children, dental filling materials, sealants

Frequency of daily tooth brushing among Korean adolescents, 2008-2010: The Korea Youth Risk Behavior Web-based Survey

The purpose of this study was to examine the frequency of daily toothbrushing among Korean adolescents. The Korea Youth Risk Behavior Web-based Survey data were analysed. subject included 75,238 in 2008, 75,066 in 2009 and 73,238 in 2010, which included a nationally representative sample of middle and high school students. The frequency of daily toothbrushing was analysed according to socioeconomic status (gender, age, residential areas, type of school, parents` education and occupation). All survey data collected was processed using SPSS ver 19.0 for data analyses such as frequency analysis, t-test and Chi-square. The mean frequency of daily toothbrushing for 2008 was 3.92, 2009 was 3.96 and 2010 was 3.99. The appearance of toothbrushing after having lunch at school was indicated to be 34.5% in 2008, 38.0% in 2009 and 40.8% in 2010. This study has shown that need to systematic oral health promotion programmes for adolescent in Korea.