Patient satisfaction and clinical evaluation of IPS empress CAD versus ZLS ceramic laminate veneers: A randomized controlled clinical trial

Abstract

Aim and objective: To evaluate fracture resistance, patient satisfaction, and survival rate of IPS Empress CAD vs zirconia-reinforced lithium silicate ceramic (ZLS) laminate veneers. Materials and methods: Fifty-four ceramic laminate veneers were fabricated for maxillary anterior teeth. The patients were divided into three groups according to the material group I (control group) fabricated from IPS Empress CAD laminate veneers, group II (intervention group I) fabricated from glazed CELTRA DUO laminate veneers, and group III (intervention group II) fabricated from VITA SUPRINITY laminate veneers. Standardized the same preparation with butt joint design and chamfer finish line located supra gingival were performed for all the teeth. The fabrication of the veneers was performed using CAD\CAM (Ceramill motion) machine, with software (Exocad). The veneers surfaces were treated and silanated according to the manufacturer’s instruction of each ceramic and enamel surfaces were etched where total etch adhesive protocol was obeyed using dual cured amine free adhesive resin cement. Fracture resistance, patient satisfaction, and survival rate for all groups were evaluated according to United States Public Health Services (USPHS) criteria. Results: Fracture resistance, patient satisfaction, and survival rate were evaluated according to the criteria of USPHS and we found there is no significant difference as all groups scaled zero score. Conclusion: IPS Empress CAD, glazed CELTRA DUO, and VITA SUPRINITY laminate veneers revealed high successful clinical performance in terms of fracture resistance, patient satisfaction, and retention. Clinical significance: Zirconia-reinforced lithium silicate ceramics are recommended to be used for laminate veneers.