The goal of this study was to evaluate a 15-month educational program designed to children. The sample consisted of 60 six-year olds, randomly assigned into control and experimental group. The control consisted of tooth brushing training, once a year. The experimental group received intensive individual tooth brushing training every three months and guidance on oral health. Initially, both groups were assessed using plaque, gingival, dmfs and DMF-S indexes every three months. In the control, no statistically significant difference was observed for plaque and gingival indexes. The experimental group showed a statistically significant reduction in mean values for two indexes. The caries indexes showed no statistically significant difference. The proposed educational program developed was efficient in reducing gingival and plaque indexes as well caries incidence.