“…Other hypothesis for the lack of statistically significant difference in GBI and a not very evident difference in PI, as well as 2 in correct and wrong answers of groups IG1, IG2 and CG, may have been the impact of the educational methodology initially used in the three groups, which has been based on exercise of participation of children and use of educational resources that stimulate empathy of children to the subjects proposed, with the use of characters considered relevant to them and, therefore, different from interventions proposed in literature, which are primarily focused on cognitive contents of oral health, using illustrations and models meaningless to children and use of passive learning methodologies [2,13,15].…”