Aim: The purpose of the study is to comparison of the effectiveness of teachers and dentists in oral health education for 6-7 year old children affected by their families. Material and Methods: The 160 children who attended to primary school were divided into two groups, in this study. The teacher gave oral dental health education to group A, the dentist gave to group B. Oral hygiene, plaque index, deft index (decayed extracted filled primary tooth), def-s index (decayed extracted filled primary tooth surface), DMF-T index (decayed extracted filled permanent tooth) and DMF-S index (decayed extracted filled permanent tooth surface) were evaluted before and after oral health education. The differences between the educations given by the teacher and the dentists were evaluated. Results: After education oral hygiene improved in both groups, plaque index value did not decrease. The values of deft , def-s, DMF-T and DMF-S index were similar before and after oral health education. There was no difference between the oral health education by the school teacher and the dentist considering these index values. Conclusions: It was concluded that oral health education was provided by school teachers and dentist was similar and that the school teachers were suitable for oral health education. It is believed that there is a need for further work to be carried out at regular intervals, where the teacher and family take part.