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Color Recovery Effect of Commercial Mouth Rinses on a Discolored Composite
Author(s) -
Harorlı Osman Tolga,
Barutcigil Çağatay
Publication year - 2014
Publication title -
journal of esthetic and restorative dentistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.919
H-Index - 60
eISSN - 1708-8240
pISSN - 1496-4155
DOI - 10.1111/jerd.12107
Subject(s) - mouth rinse , immersion (mathematics) , composite number , dentistry , resin composite , chemistry , food science , materials science , composite material , mathematics , medicine , pure mathematics
Statement of the Problem Several mouth rinses promising whiter smiles are on the market today. Purpose The aim of this study was to investigate the in vitro color recovery effects of six commercial mouth rinses on a stained universal composite resin. Materials and Methods Sixty composite resin specimens were prepared with a universal composite resin ( F iltek Z 250), and baseline C ommission I nternationale de l' E clairage L *a*b* color coordinates were measured by spectrophotometry. Specimens were subjected to two cycles of staining with coffee and cherry juice for 2 weeks, followed by immersion into mouth rinses ( L isterine W hitening V ibrant, S cope W hite, C rest 3 D W hite, S ignal W hite N ow, O ral‐ B 3 D W hite, and C olgate O ptic W hite). Changes in color coordinates were measured after staining and after 24‐ and 72‐hour immersion periods. Color alterations were calculated both by CIEDE 2000 and CIELAB formulas. Data were submitted to analysis of variance for repeated measures and T ukey's multiple comparison test. (α = 0.05). Results Immersion in colorant beverages caused perceptible discolorations on composite resin samples (Δ E 00 > 2.25 and Δ E ab * > 3.46). Immersion period and mouth rinses were significant factors for the color recovery procedure ( p < 0.001). The interaction between immersion time and WMR was also significant ( p < 0.001). Conclusions The color recovery of composite resin was affected by the brand of mouth rinse and the period of immersion. Clinical Significance This in vitro study revealed that tested mouth rinses are capable of recovering discolored composite resin colors after a prolonged exposure period.