Table 1.

Chemical composition of the Y-TZP dental ceramics expressed as weight percent (wt.%)

Ceramic	wt.%
	Y2O3	HfO2	Al2O3	SiO2	Fe2O3	Na2O	ZrO2
Bruxzir	4.1	4.0	0.34	< 0.01	< 0.01	< 0.01	Balance
Incoris TZI	4.5–6.0	< 5.0	< 0.05	< 0.05	< 0.05	< 0.05	Balance