Design: Descriptive research design was used to assess the association between knowledge and selected demographic variables such as age, gender and religion. Subjects: Parents of children age three to twelve years residing in lower Jollygrant, Dehradun, Uttarakhand.

Method: systematic random sampling technique was used to select the sample for the study.

Data analysis: The obtained data was analysed using descriptive and inferential statistics. Frequency, percentage, mean and standard deviation was used to assess the association between knowledge and socio demographic variables. The level of association was set at ≥ 0.005. Result: The result shows that 51% of mothers had a very good knowledge, 45% had good knowledge, 4% had fair knowledge.

Conclusion: The result shows that found that the knowledge of mothers regarding dental hygiene had been associated with income. So it is important to understand various factors that influence dental hygiene and encourage them to maintain dental hygiene of their children.

Keywords: Assess; Community; Dental Hygiene; Knowledge; Parents of Children.