Influence of shade, curing mode, and aging on the color stability of resin cements

AUTOR(ES)

Pissaia, Janes Francio, Correr, Gisele Maria, Gonzaga, Carla Castiglia, Cunha, Leonardo Fernandes da

FONTE

Braz. J. Oral Sci.

DATA DE PUBLICAÇÃO

2015-12

RESUMO

Abstract The color stability of resin cements is essential for aesthetic restorations. Aim: To evaluate the influence of shade and aging time on the color stability of two light-cured and two dual-cured resin cements. Methods: The CIE-Lab color parameters (n=6) were measured immediately after sample preparation and at 7, 30 and 90 days of aging in distilled water. The color difference (ΔE) was calculated and then analyzed by three-way ANOVA for repeated measures and Tukey's HSD test (α=0.05). Results: ΔE was higher for transparent resin colors, followed by dark and light colors. The mean values of ΔE were lower for both light-cured resin cements compared to the dual-cured cements. As the aging time increased, ΔE values increased. Conclusions: The light-cured resin cements showed greater color stability. The lighter shades of luting were more likely to display a greater color change.

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