Introduction: Oral health is an integral component of general health. It is also clear that causative and risk factors in oral diseases are often the same as those implicated in major general diseases. Oral hygiene refers to keeping the mouth, and particularly the teeth, clean and free of dental plaque. Dental caries is the major oral health condition in developing countries, affecting 60-90% of the school children and vast majority of adults. In India, the prevalence of dental caries is reported to be 50-60%.Though dental caries prevalence in school going children has declined in most of the industrialized countries over the last two decades, but it is still high in developing countries including India. Apart from this, the treatment of dental caries is not available to all due to lack of facilities in their areas. This has further caused an increase in tooth loss before time, resulting in malocclusion and other problems. Objectives of the study1) to assess knowledge regarding benefits of oral hygiene.2) To find association between pre-test knowledge score regarding benefits of oral hygiene with demographic variables. Hypotheses: H1: There will be significant association between pre-test knowledge of school going children with their selected demographic variables. H2: There will be significant association between pre-test knowledge of mothers with their selected demographic variables. Material and Methods: In this research study descriptive research approach is used. Non probability convenient sampling technique was used to select the 50 samples of school going children. Data was analyzed by using descriptive and interferential statistics such as mean, standard deviation and chi square. Result: The Result shown that majority of the school going children had poor knowledge about the oral hygiene
