Table 2.
Materials used in the study
| Materials | Specification | Composition | Manufacture | Lot no. |
|---|---|---|---|---|
| Lithium Disilicate Glass Ceramic blocks (IPS e.max CAD) | Glass ceramic CAD/ CAM blocs | Sio2, Lio2, K2o, P2o5, Zro2, Zno Other oxides, coloring oxides | Ivoclar Vivadent | Z014XY |
| Hybrid Resin Nano-Ceramic blocks (Voco Grandio) | Hybrid ceramic CAD/CAM blocs | 86% inorganic fillers, nano ceramic particles | VOCO Cuxhaven, Germany | 2050495 |
| Duo Link Universal resin cement | A dual cured adhesive resin cement |
Base: Bisphenol-A glycidyl dimrthacrylate, uncured dimethacrylate monomer, glass filler Catalyst: phosphoric acidic monomer, glass fillers |
Bisco: Schaumburg, IL, USA | 2100003943 |
| Silane | Porcelain primer | Ethanol, Silane coupling agent | Bisco Inc., Schaumburg, IL, USA | 1200004083 |