Questionnaire
At baseline, the sum score of the parents’ oral health-related knowledge, attitude and behavior were compared as the (mean and standard deviation of the sum score) between the intervention and control groups (6.76±1.89 vs. 6.92±1.59, 5.04±1.33 vs. 5.31±1.05, and 2.59±0.64 vs. 2.60±0.62, respectively), indicating no significant difference. In addition, the children’ oral health behavior (mean and standard deviation of the sum score) was compared between the intervention and control groups (2.12±0.82 vs. 2.11±0.80). 