Materials and Methods: A comparative cross sectional study was conducted at a private school.
Subjects were selected on the basis of non-probability convenient sampling. Respondents were
asked questions regarding their age and type of daily snack food consumption. Children who
were medically fit were included and traumatized teeth were excluded. Diagnostic criteria
depended on visual evidence of a lesion, with a blunt periodontal probe being used only to
remove plaque. Caries were recorded using the decayed missed filled teeth (DMFT) index.
Sample size calculation was done using the W.H.O. software where α=0.05, 1-beta=90, Po=0.67,
P2=0.58, n (sample size)=245.