Resumo (EN)
Objective – To assess the knowledge and perceptions related to oral health of patients attended in the Dental School – Leão Sampaio-CE. Methods – A cross-section study was conducted with 204 patients, aged from 18 years old and above. Self applicable questionnaires were applied about the perception of oral health, knowledge about the etiology and prevention of dental caries, self-perception of oral health conditions, and economic and educational aspects. Results – Of the participants, 143 were female and 61 were male, with aged to 21 to 39 years old (46%). The family income predominant was until minimum wage. Of the 204 interviewed, 119 received OHI (Oral Health Instructions) and 85 didn’t. It was observed that respondents with higher education also received OHI, with a significant statistical difference (p <0.05). In relation of patients who received OHI, there was a statistically significant difference (p <0.05) to the items analyzed: technique to brushing as the most important item to tooth brushing; frequency of the use of dental floss; what to do to avoid caries; the utility of fluoride. Conclusions – The patients showed good oral hygiene habits, but had limited knowledge of the etiology of caries and the best way to prevent it.