Effect of Liquid Polishing System on Color Stability of Bleached Enamel

Abstract:

The purpose of this study was to investigate the effect of liquid polishing system (BisCover) on color stability of the bleached enamel upon exposure to a staining agent-red wine. Forty specimens were prepared. They were divided into 2 groups and different procedures, including only bleaching with Opalescence PF (PF) or Opalescence regular (R) gels, and application of BisCover after blaeching (PF-B, R-B) were used. Unbleached specimens were served as control groups (control-1 and control-2). The specimens were stored for 48 h in red wine. The color of all specimens was measured before and after exposure with a spectrophotometer, and total color change (ΔE*) were calculated. The data were analyzed with a one-way ANOVA and the means were compared by Tukeys post hoc analysis (α=0.05). PF-B and R-B groups demonstrated significantly less color change than PF and R groups. the control-1 and control-2 groups had the least color change. No significant difference were observed between PF and R group. BisCover improved the color stability of bleached enamel in red wine.

• Periodical: Advanced Materials Research (Volume 804)
• Pages: 141-145
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.804.141
• Online since: September 2013
• Authors: Xiu Lan Chen, Huang Qin Chen
• Keywords: Bleaching, Color, Enamel, Staining

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