The Effect of Online Education on the Level of Knowledge of Methodist-2 Kisaran Junior High School Children in Maintaining Oral Hygiene During the Covid-19 Pandemic

The Covid-19 pandemic has changed people's habits to always maintain cleanliness. Good knowledge of the Covid-19 pandemic and oral hygiene as an effort to prevent the transmission of Covid-19 is important to apply during this pandemic, one of which is through online education. This study aims to determine the effect of online education on the level of knowledge of Methodist-2 Kisaran junior high school children in maintaining oral hygiene during the covid-19 pandemic. This type of research is pre-experimental with one group pretest post-test design. The research sample was 50 students of Methodist-2 Private SMP students. Data was collected by dividing the questionnaire twice (pretest and post test) via smartphone. Data were analyzed using paired t test. Based on the results of the study, the average score for knowledge of Methodist-2 Private SMP children in maintaining oral hygiene during the Covid-19 pandemic before being given online education was 34.96±1.795 and after increasing to 37.38±1.383. The conclusion of this study is that there is an effect of online education on the level of knowledge of Methodist-2 Kisaran junior high school children in maintaining oral hygiene during the covid-19 pandemic.


Covid-19 pandemic (Coronavirus Disease 2019).
Covid-19 is caused by the SARS Cov-2 (Severe Acute Respiratory Syndrome Coronavirus -2). 1 Coronavirus is one of the main pathogens that attack the respiratory system in humans. 2 On January 30, 2020, WHO (World Health Organization) has declared the COVID-19 pandemic a public health emergency of international concern. 1 This is due to the rapid spread of the covid-19 virus and the widespread death rate causing people to be 'forced to change their habits to be aware and vigilant about cleanliness at all times to avoid the coronavirus. Efforts to maintain personal hygiene do not escape from caring for and maintaining dental and oral hygiene. 3.4 Poor oral and dental hygiene can cause many problems such as cavities (caries) and diseases of the supporting tissues of the teeth (periodontal tissue). In addition, teeth and gums that are not cared for, not maintained, and damaged will cause interference with the masticatory process and can cause cavities (caries) and disease of the supporting tissues of the teeth (periodontal tissue). In addition, teeth and gums that are not cared for, not maintained, and damaged will cause interference with the masticatory process and can interfere with the health of other bodies. 5  Knowledge less on the maintenance of dental health becomes one of the factors that cause tooth decay in children. 9 Knowledge is the basic aspect or factor that shapes a person's behavior. Lack of knowledge will lead to bad behavior and attitudes towards the maintenance of dental and oral health. 10,11 On the other hand, good and correct knowledge in maintaining and maintaining dental and oral health will realize oral hygiene good which shows the overall health status of the individual. 12 Good knowledge of the COVID-19 pandemic and oral hygiene as an effort to prevent the transmission of COVID-19 is important to apply during this pandemic. 13 Education online is one way to provide knowledge to the general public in the guard, care, and maintenance of oral health as well as measures to prevent the spread of covid-19. education Online using technology can support the learning process to become a formal thing. 14 Instead, during school-age children should be educated online about oral health, because in school-age children begin to understand the importance of health care as well as restrictions that must be shunned or habits that can affect the health of teeth. 15 The delivery of educational messages online is not only used in information technology but can also be used in other fields such as health. 16  Tools and materials used in this study: Smartphone, stationery, questionnaire. The method of data collection is primary data, namely data collection is done by distributing questionnaires to respondents twice (pretest and posttest).

Discussion
A total of 50 students of Methodist-2 Private SMP, Kisaran who met the inclusion and exclusion criteria were part of this study. Children are the young generation who are the forerunners of future leaders.
Children's dental and oral health is greatly influenced by their maintenance. 18 Based on the results of the study, the majority of respondents were 14 years old.

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This is due to the distribution of junior high school students in the age range of 13-15 years. Desmita (2012), children aged 12 years and continuing through adolescence, the characteristics of children's thinking in general at the formal operational stage are obtained through the ability to think abstractly, reason logically, pay attention to appearance and draw conclusions from available information. 19 From the results of the questionnaires answered by the sample, many students do not know the right time to brush their teeth, the content of toothpaste that is good to use when brushing their teeth, candies that can clean and reduce tartar, and tools used to clean food debris in the tooth gap The dental and oral hygiene of children is also influenced by gender. 18 Based on the results of the study, it was found that the respondents were dominated by women as many as 30 people (60%), while the male respondents were only 20 people (40%). pandemic before and after being given online education.
The results of this study are in line with research by Azizah (2021) which states that there is a change in behavior in maintaining dental and oral hygiene before and after education online. 24 These results are also knowledge of conditions during the pandemic. 25 The system of learning by using online education can bring together educators and students to carry out the learning interactions with the help of internet applications. 26 education Online allows for interaction between educators and students via the web, even though they are in far and different places. 27,28 Based on the results of research, it has been proven that education online can improve student behavior in maintaining dental and oral health during the pandemic. This can be seen from an increase in the behavior of maintaining dental and oral health after being given online education.

Conclusion
There is an effect of education online on the level of knowledge of Methodist-2 Kisaran Private SMP children in maintaining oral hygiene during the covid-19 pandemic.