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Year : 2016  |  Volume : 4  |  Issue : 1  |  Page : 11-16

Effects of hydrogen peroxide-based mouthwashes on color changes of stained direct composite resins

1 Department of Restorative Dentistry, Recep Tayyip Erdogan University, Rize, Turkey
2 Department of Prosthodontics, Recep Tayyip Erdogan University, Rize, Turkey

Correspondence Address:
Dr. Muhammet Karadas
Department of Restorative Dentistry, Faculty of Dentistry, Recep Tayyip Erdogan University, Rize - 53100
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2321-4619.176018

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Objective: The aim of this study was to evaluate the effect of three mouthwashes on color changes of three composite resins stained with tea. Materials and Methods: Fifty specimens were prepared for each of the three composite resins [Clearfil Majesty Esthetic (CME), Filtek Z250 (Z25), and Charisma (CH)], and the specimens were then stained in a tea solution. Each composite group was randomly divided into five subgroups (n = 10) according to the product applied: Distilled water (DW) (negative control); Crest 3D White mouthwash (CR); Listerine whitening mouthwash (LS); Scope White SC mouthwash (SC), and Opalescence PF gel (OP) (10% carbamide peroxide, positive control). The color of the specimens was measured with a spectrophotometer at baseline, after staining, and on the 7th, 28 th , and 56 th days of the treatment period. The color differences (ΔE) were analyzed with a three-way analysis of variance (ANOVA), followed by Tukey's test (P < 0.05). Results: Compared with the clinically acceptable threshold unit, the level of staining on all the composite resins was considerably high (ΔE > 3.3). The composite resin, mouthwash, immersion time, and their interaction had a significant effect on the color change procedure (P < 0.05), but the immersion time × mouthwash × composite did not. Conclusion: The discoloration of the specimens after immersion in the mouthwashes decreased significantly over time. Only the staining of the CME specimens treated with CR, LS, and OP decreased to a clinically acceptable level at the end-treatment period.

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