Clinical Evaluation Of The Aesthetic And The Translucency Properties For Porcelain Laminate Veneers Fabricated Using Heat-Pressed And CAD/CAM Techniques

Background and Aim of Study: porcelain laminate veneers have become a very common cosmetic choice due to their highly aesthetic properties in addition to their long-term clinical survival, and considering the various methods of manufacturing the porcelain laminate veneers it has left the practitioner facing a difficulty when it comes to choosing the best technique there is for manufacturing veneer, thus the aim of this study is to evaluate the esthetic properties and the translucency of porcelain laminate veneers that are fabricated with the heat-pressed and the CAD/CAM techniques. Materials and Methods: The study sample consisted of (60) IPS e.max porcelain laminate veneers (N=60) that have been done on 7 patients and it was divided into two equal groups (n1=n2=30). In the first group, Porcelain laminate veneers were fabricated using CAD/CAM technique (IPS e.max CAD), and the second group, Porcelain Laminate veneers were fabricated using Heat-Pressed technique (IPS e.max Press), whereas they were cemented using light cured resin cement (Variolink N). the esthetic properties were evaluated according to World Dental Federation (FDI) criterions ( surface shine, surface staining, esthetic anatomical form) after one week- 3 – 6 – 12 months of the cementation. data analysis was done using Mann-Whitney U test and using Fisher's exact test for correlated samples for studying the significance of statistical differences at significance level (0.05=α). Results: the results of the evaluation of surface staining and esthetic anatomical form in both of the study groups were clinically accepted, whereas there were no statistically significant differences during all the follow-up periods, while the surface shine and translucency in the (IPS e.max CAD) group were less with a statistically significant difference than the (IPS e.max Press). Conclusions: within the limits of this study we conclude that (IPS e.max CAD) porcelain laminate veneers have a lesser degree of surface shine and translucency properties than (IPS e.max Press) porcelain laminate veneers. In addition to that, there was no detected effect on the esthetic criterion (surface staining and esthetic anatomical form) when using different fabrication methods of porcelain laminate veneers.