Effect of Different Bleaching Methods on Monomer Release from Aged Microhybrid and Nanohybrid Resin Composites

Table 1

The composition of resin composites used in the present study.

Material	Manufacturer	Type	Monomers of organic matrix	Filler	Particle size range	Filler (%)
CLEARFIL® AP-X esthetics	Kuraray Noritake Dental Inc., Japan	Microhybrid	BisGMA, TEGDMA, and UDMA	Silanated barium glass filler, silanated silica filler	0.02–17 µm	86% (w/w), 71% (v/v)
Grandio®	Voco GmbH., Germany	Nanohybrid	BisGMA, TEGDMA, and UDMA	Glass-ceramic, microfillers, and nanofillers	Glass-ceramic microfillers average particle size: 1 µm, nanofillers range of particle size: 20–50 nm	87% (w/w), 71.4% (v/v)