Research Design/Methodology: The sample was selected by using multi-stage sampling from all
the public primary schools in Tehran. 560 students were assessed using WHO questionnaires and
dental examinations according to WHO criteria by indices of dmft and DMFT. The frequency of
nutritional snacks consumed was determined in the following week on each individual. The
acquired data were described according to abundance charts and indices of means and standard
deviations. A linear regression test also was used