Oral hygiene is the practice of maintaining a clean and disease-free mouth, which includes brushing and flossing teeth, and visiting a dentist regularly for dental X-rays, exams, and cleanings. Objectives of the study: The study objective to evaluate the knowledge of school children about oral hygiene before and after a video teaching program, assess the effectiveness of brushing techniques, and determine the relationship between pre-test knowledge and selected demographic variables. Methodology: The research approach used for this study was quantitative research approach. The researcher adopted for this study one group pre-test, posttest quasi experiment design. The total sample size was 50 school children selected based on inclusion and exclusion criteria. The sampling techniques adopted for this non probability simple random sampling technique. Results: In pre-test 33(66%) samples have moderately adequate knowledge regarding brushing technique on oral hygiene and 15(30%) samples have Inadequate knowledge Regarding brushing technique on oral hygiene and only 2(4%) samples have adequate knowledge regarding brushing techniques on oral hygiene. Conclusion: The result of this study revealed that information education and communication were effective in the level of knowledge regarding brushing technique on oral hygiene among school Children. There was a significant association between the pre-test score on knowledge regarding brushing technique on oral hygiene among school Children with selected demographic variables