Resumo

PISSAIA, Janes Francio; CORRER, Gisele Maria; GONZAGA, Carla Castiglia  e  CUNHA, Leonardo Fernandes da. Influence of shade, curing mode, and aging on the color stability of resin cements. Braz. J. Oral Sci. [online]. 2015, vol.14, n.4, pp. 272-275. ISSN 1677-3225.

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.

Palavras-chave : aging; color; dental cements; esthetics; dental materials..