Translucency of Ceramic Laminate veneers Fabricated with Different Ceramic Materials and Techniques

Purpose: Comparing the translucency of various recent ceramic laminate veneers, with different fabricating techniques and luted with two types of adhesive systems.
Materials and Methods: Total of 60 discs of 10 mm diameter and 0.7 mm thickness were fabricated, and divided into 4 main groups according to the ceramic materials (Vitablocs Triluxe Forte, VITA Enamic, Ceramill® Zolid and VITA VM®9) 15 specimens for each, that divided into 3 subgroups, with 5 specimens (control and two cement systems groups). All specimens were suspected to Translucency measuring procedures, using a spectrophotometer, to calculate its Translucency Parameter, and Contrast Ratio values before and after adding the cement systems.
Result: F-test ANOVA revealed a significant difference in Translucency Parameter (TP) mean value when comparing the four materials in this study. The TP means were arranged in a descending way and showed that; Triluxe (No Adhesive) came in the 1st rank, and recorded the highest TP (3.5225±0.02217), followed by (RelyX Veneer) and the lower mean recorded by (RelyX Ultimate) for the same material where TP (3.44±0.01414). However Ceramill®Zolid (No Adhesive) recorded the 10th rank TP (2.84±0.0001), then (RelyX Veneer) followed by (RelyX Ultimate) came in the last rank as the least TP (2.78±0.00816).
Conclusion: It was noticed that, within each ceramic material, the no adhesive application, showed the highest TP, then with RelyX Ultimate adhesive showed the least TP. The first rank of TP appeared in Trilux material.