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

Table 1

The study’s materials.

Trade name	Manufacturer	Specifications
Vertex	Vertex Dental, Netherlands	Powder: polymethyl methacrylate, 500 g; Liquid: phthalyl butyl glycolate, ethanol, 250 ml
ZrO2 nanoparticles	NanoGATE, Ciro, Egypt	Spherical, white, and tetragonal particles (12 ± 3 nm; purity >99%)
TiO2 nanoparticles		Spherical, white, and anatase particles (15 ± 3 nm; purity >99%)
SiO2 nanoparticles		Spherical, white, and amorphous particles (21 ± 3 nm; purity >99%)
Silane coupling agent (3-trimethoxysilyl-propyl-methacrylate (TMSPM))	Sigma–Aldrich Chemie GmbH; Riedstrasse2, Germany	Purity 98%, ethanol 99.7%; lot no. 440159