Table 1: Composition of the materials.

Materials Composition Filler amount, wt%, vol%Manufacturer

Tetric EvoCeram universalBis-GMA, UDMA, Ba-Al-Si glass
prepolymer filler (monomer, glass filler, ytterbium trifluoride, and mixed oxide), and prepolymer
55–57Ivoclar Vivadent (Schaan, Liechtenstein)

Tetric EvoCeram bulk-fillDimethacrylates: Bis-GMA, Bis-EMA, UDMA, barium glass, ytterbium trifluoride, mixed oxide, and prepolymer; additives, catalysts, stabilizers, and pigments 81–61Ivoclar-Vivadent (Schaan, Liechtenstein)

UDMA, urethane dimethacrylate; Bis-GMA, bisphenol A diglycidyl ether dimethacrylate; Ba-Al-Si glass, barium-aluminum-silicate glass.