Color Stability of the Bulk-Fill Composite Resins with Different Thickness in Response to Coffee/Water Immersion

Table 1

Composition of the materials.

Materials	Composition	Filler amount, wt%, vol%	Manufacturer
Tetric EvoCeram universal	Bis-GMA, UDMA, Ba-Al-Si glass; prepolymer filler (monomer, glass filler, ytterbium trifluoride, and mixed oxide), and prepolymer	55–57	Ivoclar Vivadent (Schaan, Liechtenstein)
Tetric EvoCeram bulk-fill	Dimethacrylates: Bis-GMA, Bis-EMA, UDMA, barium glass, ytterbium trifluoride, mixed oxide, and prepolymer; additives, catalysts, stabilizers, and pigments	81–61	Ivoclar-Vivadent (Schaan, Liechtenstein)

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