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Objectives : The purpose of this study is to investigate the knowledge and attitude toward cardiopulmonary resuscitation(CPR) in some dental hygienists.Methods : A self-reported questionnaire was filled out by 207 dental hygienists in Gwangju from February to March, 2014. The questionnaire consisted of knowledge and attitude toward CPR dental hygienists. The data were analyzed using IBM SPSS 19.0 program for chi-square test, independent t-test, one-way ANOVA and multiple regression analysis.

Objectives: This study was carried out to investigate the effect of fluoride application after dental prophylaxis by the type of dental floss. Methods: Artificial caries lesion was made on the surface of cow's permanent teeth having sound enamel surface and vickers hardness number(VHN) was measured. Specimens were classified into APF gel group and artificial saliva group. Each group was divided into waxed floss group and unwaxed flossed group. All specimens were immersed into the artificial saliva for one minute and dental flossing was applied to waxed or unwaxed floss. After washing and drying, APF gel groups were applied with fluoride for four minutes and artificial saliva groups were immersed into the artificial saliva for four minutes. After treatment, specimens were measured by VHN and surface conditions of enamel were confirmed by scanning electron microscopy(SEM). Results: VHN of waxed flossing and fluoride application group increased to 6.78±2.75. VHN of unwaxed flossing and fluoride application group increased to 7.36±2.51. There was no significant difference between waxed and unwaxed groups(p>0.05). VHN of waxed flossing and artificial saliva group increased to 1.07±2.84. VHN of waxed flossing and artificial saliva group increased to 1.05±3.13. There was no significant difference between waxed and unwaxed groups(p>0.05). There was significant increase in VHN between waxed/unwaxed flossing and fluoride application. However, waxed/unwaxed flossing with artificial saliva showed no significant VHN increase. SEM demonstrated no residue on the enamel surface in the waxed flossing groups. Conclusions: No difference was found in the remineralization of enamel by waxed flossing or unwaxed flossing.

Objective: The purpose of the study is to investigate the curriculum development and operation based on national competency standard (NCS). Methods: The duty of the dental hygienist was analyzed based on DACUM by ten experts in January, 2011. The duty model of the dental hygienist was inspected after duty analysis. The subjects of choice were preventive dentistry and practice. The satisfaction with the subjects were carried out from March to June, 2015. Results: The duty analysis of dental hygienist by DACUM produced preventive dental treatment(11 tasks), oral health education(3 tasks), comprehensive dental hygiene treatment(6 tasks) and 12 categories(156 tasks). Preventive dental treatment was divided into preventive dentistry and practice, oral health education was changed into oral health education and practice, and comprehensive dental hygiene treatment was replace by comprehensive dental hygiene and practice. The contents of preventive dentistry and practice included outline, learning objective, related knowledge and self evaluation. Professional evaluation required mutual experience and evaluation of the students. The mutual evaluation of the students was 4.61±0.506(dental plaque control) and 1.80±0.316(tooth brushing). The professional evaluation was 1.73±0.274(dental plaque control) and 1.60±0.322(tooth brushing)(p<0.01). The satisfaction with preventive dentistry and practice was 4.61±0.506(improvement in practical work ability), 4.58±0.511(knowledge improvement) and 4.55±0.572(NCS educational environment) in order. Conclusions: The operation of NCS curriculum is considered to improve practical work ability and to solve skill mismatch between dental industries and educational training institutions.

Objectives : The purpose of the study is to identify the efficiency of total dental care(TDC) internship program.Methods : Dental hygiene students participated in the total dental care(TDC) internship program for 4 weeks in dental clinics practice. A self-reported questionnaire was filled out from June to July in 2012. The questionnaire consisted of oral health condition and dental care services by the students, dentists, and dental hygienists after TDC internship program.