Effect of Fluoridated Solution based on Silver Nanoparticles Associated with High Fluoride Dentifrice on Dental Erosion

Gabriela Torres Zanin; Edgar Pedreiro Ribeiro; Arilson de Matos; Rebeka Beatriz Silvério de Oliveira; Murilo Baena Lopes; Ricardo Danil Guiraldo; Sandrine Bittencourt Berger

Authors

Gabriela Torres Zanin
Edgar Pedreiro Ribeiro
Arilson de Matos
Rebeka Beatriz Silvério de Oliveira
Murilo Baena Lopes
Ricardo Danil Guiraldo
Sandrine Bittencourt Berger

Keywords:

Tooth Erosion, Cariostatic Agents, Metal Nanoparticles, Tooth Remineralization

Abstract

Objective: To investigate the effect of fluoridated solution based on silver nanoparticles (AgNano) associated or not with toothpaste containing high fluoride concentration (TP) on dental erosion. Material and Methods: Ninety-six enamel blocks from bovine incisors were prepared and analyzed for microhardness and initial roughness. Then, divided into 8 experimental groups (n = 12): G1 - brushing with water (H₂O); G2 - brushing with TP; G3 - AgNano + TP; G4 - AgNano + H₂O; G5 - SDF + TP; G6 - SDF + H₂O; G7 - FV + TP; G8 - FV + H₂O. SDF, AgNano, and FV were applied and, after 24 hours, all samples were submitted to erosive challenge with 0.3% citric acid (pH 2.6) and brushing with TP or H₂O for 5 days. After treatments and erosion challenge, microhardness and roughness were again evaluated. The data were statistically analyzed by ANOVA followed by Tukey's test (microhardness) and Kruskal-Wallis test (roughness), α=0.05. Results: There was no difference between treatments (AgNano, SDF, and FV), (p>0.05); however, brushing with toothpaste with high fluoride concentration significantly decreases loss of enamel microhardness. Conclusion: AgNano associated or not with toothpaste containing high fluoride concentration was not able to reduce dental erosion in the enamel, as well as SDF and FV.

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