Effect of Laser and Conventional Office Bleaching and Polishing on the Color Change of Stained Nanohybrid and Microhybrid Composite Resin

Table 1

Charachteristics of composite resins used in the study.

Material (code)	Type	Organic matrix	Fillers	Filler amount (wt%)	Manufacturer
Grandio (GRA)	Nanohybrid	Bis-GMA, Bis-EMA, and TEGDMA	Glass ceramic, silicon dioxide nanoparticles	87	Voco GmbH, Cuxhaven, Germany
Clearfil AP-X (AP-X)	Microhybrid	Bis-GMA and TEGDMA	Barium glass, silica, colloidal silica	85.5	Kuraray Noritake Dental, Tokyo, Japan