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Effect of high-fluoride dentifrice on root dentine de-remineralization exposed to erosion challenge in vitro
José Leal1, Robson Ferreira1, Guilherme Santana1
1Restorative Dentistry Department, Federal University of Piauí, Teresina, Brazil.
Background:
High-fluoride dentifrice can be used to manage dental erosion; however, little is known about it effect on root dentine previously demineralized. This study evaluated the effect of high-fluoride treatment on dentin de/remineralization exposed to an erosion challenge in vitro.
Material And Methods:
Sound and demineralized dentine blocks were submitted to a 5-days-erosive challenge in soft drink (4/day during 90 s) and treated with fluoride solutions (0, 1,100, or 5,000 µg F/mL). After this, the percentage of surface hardness loss (%SHL) or recovery (%SHR) was calculated. Data were analyzed by one-way ANOVA and Tukey post hoc test with p fixed at 5%.
Results:
High-fluoride treatment was able to reduce dentine remineralization and increase mineral recovery of previously demineralized dentine compared to other treatments tested (p<0.05).
Conclusions:
High-fluoride treatment was able to increase the remineralization and reduce the demineralization of root dentine submitted to an erosive challenge in vitro, being an option for the erosion prevention/treatment. Key words:Fluorides, root caries, tooth erosion, toothpastes.
