RESUMO
Background: Dental erosion is a complex pathology of multifactorial etiology in which chemical, biological and behavioural factors influence the erosive process. The etiology has been related to the regular use of products with low endogenous pH and high acidity including liquid medicaments. Aim: To investigate the endogenous erosive potential of commonly used pediatric liquid medicaments. Methods: Endogenous pH and titratable acidity of eight commonly used pediatric liquid medicaments were measured using a digital pHmeter. 54 exfoliated or extracted primary and permanent teeth without any carious lesion, maintained in pediatric liquid medicaments were observed under SEM after 1 minute and 10 minutes of time intervals. Results: Most of the medicaments showed etched prism pattern on primary teeth and crater formation whereas etched prism pattern was seen on all permanent enamel surfaces. Conclusion: Evidence of dental erosion was observed on both primary and permanent enamel.