Effectivity of Dental Health Education on Knowledge and Plaque Score of Junior High School Students
Yanti, Gema Nazri
Alamsyah, Rika Mayasari
Natassa, Siska Ella
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World Health Organization (WHO) recommend the school children as an appropriate group to promote dental health education in order to maintain their oral hygiene.The aim of this study was to evaluate the effectivity of dental health education on knowledge and plaque score of junior high school students in Medan City.This study was an experimental study with pre and post test group design. Population was all students of SMP Negeri 1 Medan. The sample were 208 students taken purposively from I and II grade which inclusion criteria are cooperative and not using fixed orthodontic appliance. Knowledge score was measured using questionnaire and plaque score was measured using Löe and Sillness Plaque index. Knowledge and plaque score were measured before, after and a week after dental health education. Data were analyzed by using ANOVA. The result shows that students who have knowledge before dental health education was only 4.8% in good category, meanwhile after dental health education the good category was increased into 96.2%, even though after a week there is 93.3% still in good category. There was a significant differences of knowledge before the score was 52.26± 11.87 , after 95.26± 8.91 and a week after dental health education it became 94.27± 9.38 (p<0.05). The plaque score before dental health education in good category was 51.9%, after dental health education was increased into 96.2% and a week after dental health education was 89.9%. There was significant differences of plaque score before 0.98± 0.44, after 0.40± 0.29 and a week after dental health education 0.43± 0.37 (p<0.05). In conclusion,dental health education in junior high school students is effective in improving student’s knowledge and decreasing plaque score.