Dias, Maria do RosárioSimões, Nádia P.2016-03-092016-03-092016Journal of Educational and Developmental Psychology; Vol. 6, No. 1; 20161927-05261927-0534http://hdl.handle.net/10400.26/11987This is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/)."Objectives: A descriptive study of exploratory character with the objective to determine the representation of a healthy tooth and an unhealthy tooth, associated with the concept of dental decay. Methods: Children of both genders (880), distributed in six age groups of low socio-economic level, some already having prior contact with the dentist and others not. Three instruments were used: a sociodemographic questionnaire, pictograms representation protocols and drawing content analysis grid. Results: Content analysis on the drawings indicates significant discrepancies, inherent to the pictorial profiles. Conclusion: The results point to the need of developing educative tools for oral health."engHealth educationHealthy toothTooth decayjournal article10.5539/jedp.v6n1p110