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Objectives: The purpose of this study was to identify the related factors of dental caries and periodontal disease in adolescents from Korean multicultural families, thereby helping to reduce the prevalence rate of oral disease. Methods: The subjects were 710 multicultural adolescents recruited using a web-based survey, National 2015 Korean Youth Risk Behavior, from the Korean Center for Disease Control. A multicultural family was defined in this study as one having an immigrant mother or father. Oral symptoms included dental caries and periodontal disease. Toothache was defined as a symptom of dental caries. Tender or bleeding gums were defined as symptom of periodontal disease. For statistical analysis, Statistical Package for Social Sciences (SPSS) Version 21.0 for Windows was used. Descriptive analysis and a Chi-square test were conducted to determine the factors associated with general characteristics, health behavior, and oral health behavior. Finally, to investigate the associations among oral disease symptoms, logistic regression analysis was performed. Results: Toothache was significantly higher in female 1.52 (95% CI; 1.45-1.60), high school 1.23 (95% CI; 1.18-1.28), women school 1.10 (95% CI; 1.05-1.16), individuals with poor economic status 1.45 (95% CI; 1.30-1.52), and participants who consumed alcohol 1.32 (95% CI; 1.27-1.37). Toothache related to perceived health status was significantly lower in the healthy group 0.69 (95% CI; 0.64-0.75), and was higher in usual stress group 1.65 (95% CI; 1.57-1.74). Gum bleeding was significantly higher in female 1.32 (95% CI; 1.27-1.37), high school 1.15 (95% CI; 1.10-1.19), and individuals with poor economic status 1.38 (95% CI; 1.27-1.50). Gum bleeding related to perceived health status was significantly lower in the healthy group 0.68 (95% CI; 0.63-0.74), and was higher in usual stress group 1.54 (95% CI; 1.46-1.62). Conclusions: Taking into account of social and economic levels, and dietary habits in the multicultural families adolescents, further education and support will be needed for oral disease prevention and early treatment.

Objectives: The purpose of the study was to investigate the associated factors with oral health behavior in public health majoring students. Methods: Using convenience sampling method, the subjects were 474 health-related majoring students in Jeollanamdo. A self-reported questionnaire was completed from September 1 to 15, 2014. The questionnaire consisted of general characteristics of the subjects, oral health related characteristics, oral health knowledge and behavior. Data were analyzed using SAS 9.3 version. T-test, ANOVA, correlation and multiple linear regression analyses were performed to evaluate the related factors with oral health behavior. Cronbach's  in oral health knowledge in this study was 0.52 and that in oral health behavior was 0.80. Results:The overall score of oral health behavior was 3.38±0.52. Of all behaviors, the practice in brush of teeth and tongue had the highest mean score. In multiple regression analysis, oral health knowledge in the nursing and dental hygiene students was positively associated with the oral health behavior(=0. 04, p=0.003, =0.23, p=0.003, and =0.18, p=0.034, respectively). Necessity of dental care, one of oral symptom, and more than two oral symptoms were negatively associated with oral health behavior (=-0.14, p=0.002, =-0.11, p=0.037, and =-0.17, p=0.011, respectively). Conclusions: Higher oral health knowledge showed higher levels of oral health behavior. These results will enhance the quality of oral health behavior by increasing the level of oral health knowledge. The optimal oral health education program would be able to improve oral health behavior by increasing the level of oral health knowledge.

Objectives: Osseointegration is important to success of dental implants, it is influenced by dental implant surface treatment. Recently, it could be classified into the five generations. Methods: Data were collected using electronic journals and books. Results: Machined type surface belongs to the first generation, the second generation of surface treatment includes blasted, acid-etching and titanium plasma spraying type surfaces. The third generation consists of hydroxyapatite coating type surface, the fourth generation is developed anodizing oxidation the surface that using bioactive factors. Finally, the five generation uses recombinant human bone morphogenetic protein-2 (rhBMP-2). Conclusions: It is thought that more innovative dental implant surface treatment will be developed according to the development of science technology

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