Effect of Mouthwashes on Solubility and Sorption of Restorative Composites.

José Pereira Leal,Jaqueline Damasceno Da Silva,Vera Lúcia Gomes Prado,Glauber Campos Vale,Carlos Da Cunha Oliveira-Júnior,Rafaelle Fernanda Melão Leal

doi:10.1155/2017/5865691

José Pereira Leal, Jaqueline Damasceno Da Silva + Show 4 more

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https://doi.org/10.1155/2017/5865691

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Abstract

Objective Composites sorption and solubility can be precursors of several chemical and physical processes, which lead to deleterious effects on the polymer structure. This study evaluated the effect of mouthwashes on solubility and sorption of composite resins. Materials and Methods Forty-two specimens of each evaluated composite (Filtek Bulk Fill Flow, Opallis Flow, Durafill VS, and Filtek Z350) were prepared and randomized into seven groups for each solution (mouth rinses with and without alcohol and distilled water) and stored for seven days. Solubility and sorption tests were performed according to ISO4049. Data were analyzed using 2-way-ANOVA followed by Tukey's test for means comparison (α = 0.05). In addition, paired t-test was performed to analyze the alcohol effect on the studied composite resin properties. Results Listerine Cool Mint (containing alcohol in its composition) caused the greatest degree of sorption for all composites tested in comparison to other rinses, while for solubility this behavior was observed for Opallis Flow and Durafill VS composite resins (p < 0.05). Regarding the composites, Opallis Flow showed the highest sorption and solubility values in general (p < 0.05). Conclusion Overall, the sorption and solubility of composites were higher in mouthwashes containing alcohol in its composition, with Opallis Flow being the most affected composite resin.

Highlights

Restorative composites are widely used in clinical dentistry because of their aesthetic quality and adhesion ability to dental structures
With respect to sorption caused by rinses, for all studied composite resins, Listerine with alcohol (Listerine Cool Mint) caused a greater extent of sorption, being superior to all other mouthwashes with alcohol tested (p < 0.05)
Opallis Flow showed the higher values of sorption with statistical difference compared to the other composite resins, when Listerine with alcohol, PerioGard without alcohol, and water were used (p < 0.05)

Summary

Introduction

Restorative composites are widely used in clinical dentistry because of their aesthetic quality and adhesion ability to dental structures. Their improvements in mechanical properties have led to a universal application and versatility, being indicated for both anterior and posterior teeth [1]. The phenomenon of sorption and solubility can be a precursor of several physical and chemical processes leading to deleterious effects on the structure and function of the polymeric material. These effects may include volumetric change as expansion, physical changes as plasticizing, and chemical changes such as oxidation and hydrolysis [3]

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