Maintenance of dental and oral health is very important during the Covid-19 pandemic because the oral cavity is the gateway for disease germs to enter, therefore it is important for everyone to maintain oral hygiene and health. The goal is to avoid the possibility of damage and disturbance to the teeth and all soft tissues in the oral cavity. Covid-19 is a disease caused by a type of corona virus that attacks the respiratory system, so you are required to wear a mask to protect your nose and mouth. Indonesia is one of the countries exposed to Covid-19. Objective: To describe the effectiveness of dental health education with the zoom meeting application during the COVID 19 pandemic for junior high school students. Methods: This study uses a quasi-experimental method. The sampling technique was purposive sampling, with 68 samples used. The instrument used in this study was a questionnaire about the maintenance of dental and oral health during the COVID-19 pandemic using a google form. Results: Knowledge before and after being given dental health education during the covid-19 pandemic was in the good category before being given education (61.8%). Then, after being given education there were (67.6%) in enough categories before being given education (36.8%) after being given education given education (30.9%) in the less category before being given education there were (1.5%) and after being given education there were (1.5%). Conclusion: there is an increase in knowledge of dental health before and after being given dental health education with the application of zoom meetings in junior high school children.