BACKGROUND: Tea is the most consumed beverage in the world after water. Tea (Camellia sinensis) is native to Southeast Asia and is now available in more than 30 countries. Tea has various health properties. Tea has an active component, namely catechins, which can inhibit the growth of Streptococcus mutans as a component of dental plaque formation. AIM: This study aims to determine the antibacterial effect of steeped white tea, black tea, and green tea on S. mutans and plaque accumulation. METHODS: The research used a quasi-experimental design with pre-test and post-test group design. The population was students of the Department of Dental Nursing. Purposive sampling technique is used with a sample size of 48 students who were divided into three parts of the sample group for the 2.5% concentration of tea mouthwash treatment. The analysis used paired t-test to see the antibacterial effect and differences in three-variable test followed by Kruskal–Wallis test. RESULTS: The results showed that the mouth rinses of steeped white tea, black tea, and green tea were effective in reducing S. mutans and plaque accumulation on teeth. There is a significant difference in the inhibition zone of S. mutans against the three types of tea, and white has the largest inhibition zone. As for plaque accumulation, there is no difference between the three types of tea. CONCLUSIONS: It can be concluded that mouth rinsing with steeping white tea, black tea, and green tea with a concentration of 2.5% has antibacterial properties that can inhibit S. mutans and plaque accumulation.

Education is a learning process from not knowing to knowing. The provision of education is a very important need for human life so that the goals of the learning process or health education lead to the achievement of goals. Education, namely for behavior change, can be done by several methods, including lectures, discussions, demonstrations, simulations and others. There is also the provision of dental caries treatment with the Autraumatic Restorative Treatment technique as a form of early rescue effort that is carried out to prevent tooth decay from getting worse. This study aims to determine changes in knowledge and attitudes after being given education with demonstrations and actions for treating enamel caries with the Autraumatic Restorative Treatment technique. This research uses the type of research in the form of a cross sectional study. The population in this study consisted of grade 4.5 and 6 elementary school students. Sampling in this research using purposive sampling technique, namely sampling based on the researcher's assessment of who is eligible to meet the requirements as a sample. The results of this study indicate that there are changes in students' knowledge and attitudes after conducting education and before conducting education and there are differences in students' knowledge and attitudes before and after counseling. This study can be concluded that educational counseling about knowledge and attitudes of dental caries treatment can affect students' knowledge of gogo treatment in Autraumatic Restorative Treatment.Keyword : Knowledge,Attitude,Education,Autraumatic Restrorative Treatment