Anticariogenic potencial of acidulate solutions with low fluoride concentration

• Autor(a) principal: Delbem, Alberto Carlos Botazzo
• Data de Publicação: 2006
• Outros Autores: Tiano, Gilberto Carlos, Alves, Karina Mirela Ribeiro Pinto, Cunha, Robson Frederico
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Journal of applied oral science (Online)
• Texto Completo: https://www.revistas.usp.br/jaos/article/view/3377
• topic: Esmalte dentário; dureza; Fluoreto de sódio; administração & dosagem; Cárie dentária; prevenção & controle; Dental enamel; hardness; Sodium fluoride; administration & dosage; Dental caries; prevention & control

OBJETIVES: The aim of this study was to verify the anticariogenic effect of acidulate solutions with low NaF concentration, using pH-cycling model and bovine enamel. MATERIAL AND METHODS: Enamel blocks were submitted to the surface microhardness (SMH) test and randomly divided in 12 experimental and one placebo groups. The blocks were submitted to pH cycling for 7 days, with daily applications once/day of 0.05% NaF and 0.1% NaF and twice/day of 0.02% NaF solutions. Four different pH: 4.0, 5.0, 6.0 and 7.0 were used. Next, SMH test was again used to determine the surface microhardness percentage change (%SMH). Data obtained for %SMH were homogeneous and passed through variance analyses and Tukey's test (5%) as far as fluoride concentrations and pH. RESULTS:The results showed that pH influenced %SMH in 0.02% NaF and 0.05% NaF solutions with pH 4.0, which had less mineral loss compared to pH 7.0 (p;0.05). A dose-response relationship was observed among the tested solutions, with better anticariogenic effect for the 0.1% NaF solution. CONCLUSION: The results suggest that the addition of citric acid to acidulate mouth rinses reduce mineral loss.