ABSTRACT
Background: Dental caries is a disease caused by one of the bacteria Streptococcus mutans. Prevention of caries and dental plaque can also be done by brushing the teeth regularly using toothpaste. Mechanical or chemical methods can remove plaque. Caries prevention can be done by brushing the teeth using toothpaste. Aim: To determine the effectiveness of brushing teeth with sodium lauryl sulfate toothpaste and toothpaste without sodium lauryl sulfate on reducing dental plaque index in elementary school students in Aceh Besar district. Methods: This study used a quasi-experimental method with a post-test-only group design. This research was conducted on students of elementary school students Tanjung Lhoknga, Aceh Besar district, with 120 people. Data analysis using statistical test used is Chi-Square test at 95% confidence level (= 0.05). Results: There is a difference between toothpaste with sodium laurel sulfate and toothpaste without sodium laurel sulfate (p-value < 0.05 ). Brushing teeth with toothpaste without sodium laurel sulfate had a better effect on reducing plaque index (p-value < 0.05). Brushing teeth with sodium lauryl sulfate toothpaste before the intervention, the plaque index was 1.731, and after the intervention, the plaque index was 1.562, there was a decrease in plaque by 0.169. while brushing teeth without sodium laurel and sulfate plaque index before intervention was 1,845, and plaque index after the intervention was 1,230. There was a decrease in plaque by 0.615. Toothpaste without sodium laurel sulfate lowers plaque index more than toothpaste with sodium laurel sulphate. Conclusion: Brushing teeth with toothpaste without sodium laurel sulfate is more effective in reducing plaque index.

ABSTRACT
Maintaining teeth and mouth is very important and must be considered, especially for mothers in maintaining dental health for children. School-age children have a high risk of developing caries due to dietary factors, fluoride use, bottle feeding, and parents' level of knowledge and behavior related to dental and oral care. In kindergarten-age children, dental and oral care still depends on the mother, who is the closest figure to a child. The purpose of this study was to determine the behavior of mothers in caring for children's teeth on the incidence of child caries in Arifa Kindergarten, Banda Aceh City. The study used a cross-sectional analytic method on 30 mothers and their children. Mothers were given a questionnaire to determine their knowledge and behavior in caring for children's teeth; then, an oral examination was carried out to determine the caries index of children from mothers who had filled out the questionnaire. The study's results found a relationship between maternal behavior and the risk of dental caries in children at Arifa Kindergarten, Banda Aceh City, as evidenced by the value of the chi-square statistic test p=0.034 (α=0.05). The analysis of 30 mothers showed 12 respondents had less behavior and 9 with a high caries risk category. Eighteen respondents had good behavior, and 11 had caries risk in the moderate category. There is a relationship between the behavior of mothers in caring for children's teeth to the incidence of child caries in Arifa Kindergarten, Banda Aceh City.

ABSTRACT
Elementary school students are a group with a high risk of dental caries, so their selection as a target for health promotion is very appropriate. This research aims to develop accessible, cheap, and effective health promotion media. Health promotion media developed are audiovisual and leaflets. The research method is a quasi-experimental (quasi- experimental) design with a pre-test – post-test group design. The population in this study was all students of Beureunun State Elementary School I and all of Beureunun State Elementary School 3, Pidie Regency. The sample in the study amounted to 100 students. Data analysis used univariate and bivariate. The study's results found a difference in the mean knowledge score in post-test I and post-test II between the audiovisual media group and the leaflet media group. The audiovisual media group was higher than the leaflet statistically at the significance level of p = 0.000. In the attitude aspect, there is a difference in the mean attitude score in post-test I and post-test II; audiovisual media showed an increase in the mean score of attitudes which was higher than the leaflet group, which was proven statistically at a significant level of p = 0.000. There is a difference in the mean behavioral score in post-test I and post-test II between the audiovisual media group and the leaflet media group, the mean behavior score in the audiovisual media group are higher than the leaflet at a significance level of p = 0.000.