Introduction
tooth decay, caries
DENTAL CARIES, TOOTH DECAY, CARIES, DENTAL CARIES, PLAQUE
Dental caries influences the social life and well-being of people and has a great impact on the quality of life. In children, untreated caries has more negative impacts as it influences social life, school attendance, speech, and self-esteem [Schools are considered as an important setting to transfer information to children and their families as they offer an efficient and effective way of reaching over one billion children worldwide [A key component of supervised toothbrushing programs is ensuring plaque removal effectively via brushing twice daily using fluoride toothpaste under the supervision of a parent/caregiver [There are common indices to measure dental caries in the community-based surveys such as the DMFT/dmft index [According to a national survey in 2012, the prevalence of tooth decay is high in Iranian children. The mean dmft/DMFT index was 5.16 (SD = 0.38) in 6-year-old children, and only 13% of children were caries-free in this age group [