Keywords
Isotonic solutions
Hardness tests
How to Cite
Funding data
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Fundação de Amparo à Pesquisa do Estado de São Paulo
Grant numbers 2021/04813-2
Abstract
Aim: This study aimed to assess the effects of a hydroelectrolytic beverage on the surface roughness and microhardness of different bulk fill resin composites. Methods: Sixty resin composite samples were prepared and divided into three groups: FiltekTM Z350 (C), FiltekTM One Bulk Fill (BF-F), and Opus Bulk Fill APS (BF-O). These were further subdivided to analyze two beverage groups: GatoradeTM Lemon (GL) and distilled water (control). Surface roughness (Ra), surface microhardness (KHN), and scanning electron microscopy (SEM) results were evaluated (n=10). The data were subjected to two-way ANOVA (for roughness) or three-way ANOVA (for microhardness), followed by Tukey’s post hoc test (α=0.05). Results: The C group exhibited higher microhardness than the BF-F and BF-O groups, regardless of the solution used. A reduction in microhardness was observed in all groups when comparing initial and final time points. SEM images revealed variations in the size, amount, and arrangement of particles among the different resin composites. Conclusion: The study concluded that the microhardness of different bulk fill resin composites decreases when exposed to either the hydroelectrolytic beverage or distilled water. However, the type of immersion liquid did not influence the surface roughness of the evaluated composite resins.
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This work is licensed under a Creative Commons Attribution 4.0 International License.
Copyright (c) 2025 Caio Castro Grigoletto, Laura Nobre Ferraz, Rafael Pino Vitti, Renata Siqueira Scatolin
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