Table 1: Description, composition, and manufacturers of the materials used in the study.

Material Description Composition Manufacturer
Tetric Evo Ceram Visible light cured nanohybrid Resin composite The monmer matrix is composed of dimethacrylates (17-18%weight). The fillers contain barium glass, ytterbium trifluride, mixed oxide and prepolymer (82-83%weight), additives, catalysts, stabilizers and pigments (1% weight). Ivoclar Vivadent
Tetric Evo Ceram Bulk Fill Visible light cured nanohybrid Resin composite Containing a highly reactive light initiator Ivocerin
Tetric N-Etch Etchant Phosphoric acid (37 wt% in water)
Tetric N-Bond Total-Etch Single-component, Total-etching, light curing, nano-filled adhesive ystem Phosphonic acid acrylate, HEMA*, Bis GMA**, urethane dimethacrylate, ethanol, nanofillers, catalysts and stabilizers.

*Hydroxyethyl Methacrylate **Bisphenol A diglycidylmethacrylate