[Dental caries index of first permanent molar [DMF6] and some of the associated factors in 12 year-old students in northern Iran [2015-16]]

ABSTRACT

Background and Objective: Permanent first molars are susceptible to caries due to their particular anatomical form, early development and lack of knowledge of parents about their permanence. This study was conducted to determine the index of first permanent dental careis [DMF6] and some of its related factors in 12 year-old students