Article ID: JPR_D_24_00265
Purpose: To evaluate the color stability of light-cured resin luting agents after artificial aging using an amine-free initiator system.
Methods: Five groups, each with eight samples, were produced. Specimens were divided as follows: two light-cured resin luting agents (PANAVIA Veneer LC; PVL [experimental group] and Variolink Esthetic LC; VEL [control group]), one dual-cured resin luting agent (PANAVIA V5; PV5 [control group]), and one composite resin (ESTELITE Σ QUICK; ESQ [control group]). The samples were divided into five groups subjected to different accelerated aging conditions: Condition 1 (air storage), Condition 2 (water storage), Condition 3 (temperature–moisture combination: as a control for Condition 2), Condition 4 (ultraviolet (UV) aging: to predict the performance in a laminate veneer restoration margin area), and Condition 5 (without UV aging to serve as a baseline control by eliminating environmental factors). Spectrophotometric measurements were performed. Changes in the color (∆E00) and a transparency parameter (ΔTP00) were determined. Data were analyzed using one- and two-way ANOVAs at a significance level of 5%.
Results: PANAVIA V5 in water storage exhibited the highest ΔE00 across all materials, except Variolink Esthetic LC (P < 0.001). PANAVIA Veneer LC under Condition 1 did not show a statistically significant difference in ΔE00 compared to the other materials (P = 1.000). PANAVIA Veneer LC and ESQ showed significantly smaller ΔTP00 values than the other materials (P < 0.001).
Conclusions: Based on the results of this study, PANAVIA Veneer LC shows better color stability, even under artificial aging conditions, which is clinically desirable.
