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Effect of whitening mouthrinses on color change of stained resin composites

Authors

Mariane Cintra Mailart Universidade Estadual Paulista “Júlio de Mesquita Filho”, Institute of Science and Technology, Department of Restorative Dentistry, São José dos Campos, SP, Brazil https://orcid.org/0000-0001-8967-0374
Érica Crastechini Universidade Estadual Paulista “Júlio de Mesquita Filho”, Institute of Science and Technology, Department of Restorative Dentistry, São José dos Campos, SP, Brazil https://orcid.org/0000-0001-7175-8060
Juliana Boa Sorte Oliveira Universidade Estadual Paulista “Júlio de Mesquita Filho”, Institute of Science and Technology, Department of Restorative Dentistry, São José dos Campos, SP, Brazil https://orcid.org/0000-0003-2450-8530
Carlos Rocha Gomes Torres Universidade Estadual Paulista “Júlio de Mesquita Filho”, Institute of Science and Technology, Department of Restorative Dentistry, São José dos Campos, SP, Brazil https://orcid.org/0000-0002-9485-5514
Taciana Marco Ferraz Caneppele Universidade Estadual Paulista “Júlio de Mesquita Filho”, Institute of Science and Technology, Department of Restorative Dentistry, São José dos Campos, SP, Brazil https://orcid.org/0000-0003-0521-7922
Alessandra Buhler Borges Universidade Estadual Paulista “Júlio de Mesquita Filho”, Institute of Science and Technology, Department of Restorative Dentistry, São José dos Campos, SP, Brazil https://orcid.org/0000-0001-7686-089X

DOI:

https://doi.org/10.4322/bds.2022.e2773

Abstract

Objective: The present study compared the effect of whitening mouthrinses (WM) on the color change of stained
resin composites (RC). Material and Methods: Cylindrical specimens (6mm-diameter and 1mm-thickness)
were prepared with the following RC (n=60/group): Filtek Z350XT (Z350- methacrylate-based), Admira Fusion
(AD- ormocer-based), TPH3 (TPH- methacrylate-based), and Beautifil II (BII- giomer/methacrylate-based).
The initial color was assessed with reflectance spectrophotometer using CIE L*a*b* system. The specimens
were immersed in staining broth during 14 days, submitted to color evaluation (E1) and randomly allocated
in 4 subgroups (n=15), according to WM adopted: Listerine Whitening (LW-2% hydrogen peroxide), Plax
Whitening (PW-1.5% hydrogen peroxide), Bromelain/papain (BP-experimental solution), and Deionized water
(DW-negative control). The whitening cycle consisted of RC immersion in WM for 1 min and in artificial saliva
for 30 min, simulating 12 weeks, and final color assessment was performed (E2). Color change data were
analysed by ANOVA and Tukey’s tests (a=5%). Results: After staining, TPH showed the lowest E1 values
and Z350 showed the highest color change (p=0.001). The whitening effect promoted by LW was significantly
higher than color alteration obtained with PW (E2), and BII showed the highest color change values (E2) after
whitening cycle. Conclusion: LW exhibited the greatest whitening potential on stained RC, mainly with the
Giomer (Beautifill II) and the Ormocer-based (Admira Fusion) materials. Bromelain/papain solution showed
no whitening effect on stained RC.
KEYWORDS
Giomer; Hydrogen peroxide; Ormocer; Resin composite; Whitening mouthrinses.