The purpose of this preliminary study was to identify oral problems and promote a healthy lifestyle at gimnazial school pupils, from a Romanian disadvantaged area. We wanted to identify the progress made by pupils following theoretical or practical interventions. Thus, along with the theoretical notions transmitted, either in the optional course of Health Education, to 6th grade pupils, or in Biology lessons, to 7th grade pupils, the new factor brought was the reinventing of the visit method, by extending the documentary feature, with that of practical applicability, extremely useful for participants coming from rural environment. Theoretical elements have been presented to all pupils. Additionally, at the 5th grade pupils, we added a practical intervention, respectively a dental control made during a visit to the dentist. Both through theoretical and practical methods, pupils have made progress concerning intellectual and practical skills in oral hygiene, which are essential to a healthy and responsible behavior. The visit at the dentist's office, the identification of the oral diseases, the recommendation and the treatment offered contributed decisively awareness of the importance of oral disease prevention, but also to identifying concrete solutions, connected to food, regular visits and correct brushing.