Effect of whitening mouth rinses on the chemical and physical properties of a nanofilled composite

Authors

DOI:

https://doi.org/10.20396/bjos.v20i00.8659320

Keywords:

Tooth bleaching agents, Nonprescription drugs, Mouthwashes, Color, Composite resins

Abstract

Aim: This study analyzed the effect of whitening mouth rinses on water sorption (WS), solubility (SL), color change, and surface roughness of a nanofilled composite. Whitening perceptibility and acceptability (WID) were also studied. Methods: Forty specimens of Filtek Z350XT, shade EA2 were produced and randomly distributed (n=8) to AS – artificial saliva (control); LWE – Listerine Whitening Extreme; CLW – Colgate Luminous White; LCM – Listerine Cool Mint; and CP – Colgate Plax. They were immersed in the mouth rinses 2x/day, for one minute, during 28 days. The color was assessed using an Easyshade spectrophotometer (CIE-L*a*b* system). Surface roughness (Ra-μm) was measured with three parallel measures, using an RP-200 roughness meter. The WS and SL (μg/mm-3) were analyzed based on the ISO 4049 recommendations. The data were analyzed using one- and two-way ANOVA/Tukey tests (α=0.05). Results: Surface roughness significantly increased after immersion in AS and LCM, with no significant differences between the groups either before or after immersion. The ΔE* was not significantly different between the groups. All substances produced a ΔWID higher than the 50%:50% perceptibility and acceptability thresholds. The WS and SL were not significantly affected by the mouth rinses. Conclusion: Whitening mouth rinses did not affect WS, SL, surface roughness, and color stability of a nanofilled composite, regardless of the presence of ethanol in the composition.

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Author Biographies

Laura Carolina Kepler, Community University of Chapecó Region

School of Dentistry, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil.

Ana Paula Morona Rodrigues, Private practice

Private practice, Chapecó, SC, Brazil.

Mauro Antonio Dall Agnol, Community University of Chapecó Region

School of Dentistry, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil.

Sinval Adalberto Rodrigues-Junior, Community University of Chapecó Region

Health Sciences Post-Graduate Program, Community University of Chapecó Region (Unochapecó), Chapecó, SC, Brazil.

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Published

2021-02-08

How to Cite

1.
Kepler LC, Rodrigues APM, Dall Agnol MA, Rodrigues-Junior SA. Effect of whitening mouth rinses on the chemical and physical properties of a nanofilled composite . Braz. J. Oral Sci. [Internet]. 2021 Feb. 8 [cited 2022 Sep. 25];20(00):e219320. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8659320

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Original Research

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