Conclusion
tooth
 According to the findings of the present study, the perceived benefits and positive feelings toward the behavior were improved, leading to a reduction in the perceived barriers and the negative feelings towards the behavior, ultimately an increase in the duration of tooth brushing. Although it seems that more methodical and long-term planning is needed to increase the frequency of brushing (2 times a day). Eventually, more studies are suggested regarding the effect of educational programs with a theoretical framework on preventive oral health behaviors during pregnancy.