Masking Ability of Bleach Shade Composite Resins in Different Thicknesses

Table 2

Materials used in the study.

Composite	Manufacturer	Composition
Gradia Direct	GC, Japan	Microhybrid composite resin matrix: urethane dimethacrylate (UDMA), dimethacrylates, trimethacrylates; Fillers: silica and prepolymerised resin fillers (73 wt%)
G-aenial Anterior	GC, Japan	Microhybrid composite matrix: UDMA, dimethacrylate comonomers; Fillers: prepolymerised silica and strontium fluoride containing fillers (76 wt%)
Estelite Sigma Quick	Tokuyama Dental, Japan	Nanohybrid composite matrix: Bis-GMA, TEGDMA fillers: silica-zirconia fillers, silica-titania fillers (82 wt%)
Charisma Diamond	Kulzer, Germany	Nanohybrid composite matrix: TCD-DI-HEA, UDMA, Bis-GMA, TEGDMA; Fillers: Ba, Al, F glass, and colloidal silica (77 wt%)
Renamel Microfill	Cosmodent, USA	Microfill composite matrix: diurethane dimethacrylate, butanediol dimethacrylate, multifunctional methacrylate ester; Fillers: pyrogenic silicic acid filler (60 wt%)