Influence of Ceramic Laminate Veneer Thickness on Sorption and Solubility of Light-Cured Resin Cement

Objective: This study evaluated the influence of different thicknesses of ceramic laminate veneers on water sorption and solubility of light-cured resin cement. Materials and Methods: Twenty-four specimens of light-cured resin cement (8 mm diameter and 1 mm thickness) were divided into four groups according to ceramic thickness interposed during cure: without ceramic laminate veneer; 0.7 mm, 1.0 mm and 1.3 mm. All samples were subject to water sorption and solubility process. The mean water sorption and solubility values were compared by One-way ANOVA/Tukey’s test (α = 0.05). Pearson's correlation was performed to identify correlations between water sorption and solubility as well between ceramic thickness and water sorption and solubility. Results: Significant differences were found in the sorption values (P < 0.05) and solubility (P < 0.01) for the tested conditions. Water sorption and solubility in the cement light-cured under thicker ceramic were statistically higher than control group. Moreover, there was a positive correlation between veneer thickness and water sorption and solubility of the light-cured resin cement. Conclusion: The variation in the thickness of the ceramic laminate veneer can alter water sorption and solubility properties of the light-cured resin cement tested.