Methods: 48 extracted maxillar santral teeth were used in this study. Each tooth was free of caries or restorations. Teeth were prepared using bevelled preparation technique. Teeth were randomly divided into two ceramic systems, IPS e.max and Cerec 3. Laminate veneers fabricated by computer-assisted design/computer-aided machining (CAD/CAM) using Vita blocks. IPS e. Max laminate veneers were done by same technician according to the manufacturer instructions. Marginal fit of laminate veneers measured at the margins and at several points in the stereomicroscope using digital image analysis.
RESULTS: The results were analyzed by independent t test. There was not significant differences between two different ceramic laminate systems (p<0.05). The fit of IPS E. Max and Cerec 3 laminate veneers showed the similar range of gap width.
CONCLUSION: The clinical performance of IPS E. Max and Cerec 3 laminate veneers confirm that the accuracy of fit of these systems are well acceptable