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European Journal of Prosthodontics and Restorative Dentistry

Colour Stability of Acrylic Resin Denture Teeth After Immersion in Different Beverages

Abstract

Abstract - The colour stability of acrylic resin denture teeth in beverages was investigated. A spectrophotometer measured the colour (CIE-L*a*b* system) of all specimens after storage in distilled water for 24 h at 37°C (T0). Specimens were then immersed in various beverages. After 15 days (T1) and 30 days (T2), for each material, the mean ∆E values were calculated and compared by two-way ANOVA and Tukey intervals (α=0.05). In the ∆T0T1 period, specimens stored in red wine were significantly discoloured, compared to distilled water (P=0.003). There was no difference between immersion solutions in ∆ET0T2 (P=0.772) and in ∆ET1T2 (P=0.058), and no difference between materials in all immersion periods.

KEYWORDS: acrylic resin denture teeth, acrylic resin materials, beverages, colour, colour measurement

Authors

B.E. Arana-Correa, W.F. Sepúlveda-Navarro, F.L.E. Florez, V.M. Urban, J.H. Jorge, N.H. Campanha

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