Polymethylmethacrylate-Based Nanocomposites for Denture Base Fabrication: Impact of Nanoparticle Type and Concentration on the Color Change In Vitro

Table 2

Grouping and coding of different subgroups according to NP type and concentrations.

NP	Code	Description
Control	C	Unreinforced heat cured acrylic resin
ZrO2	3ZNP	Heat polymerized acrylic resin reinforced with 3 wt% of ZNP
	7ZNP	Heat polymerized acrylic resin reinforced with 7 wt% of ZNP
TiO2	3TNP	Heat polymerized acrylic resin reinforced with 3 wt% of TNP
	7TNP	Heat polymerized acrylic resin reinforced with 7 wt% of TNP
SiO2	3SNP	Heat polymerized acrylic resin reinforced with 3 wt% of SNP
	7SNP	Heat polymerized acrylic resin reinforced with 7 wt% of SNP