Table 2: T-Test was used for impact strength, thermal conductivity, and color stability between groups according to the addition of 3% of TiO₂.

–		t-Test	P-Value	Sig
Impact strength	Group la and Group lb	3.723	0.002	S
	Group IIa and Group llb	5.115	0.000	S
Thermal conductivity	Group la and Group lb	0.944	0.358	NS
	Group IIa and Group llb	2.017	0.059	NS
Color stability	Group la and Group lb	5.045	0.000	S
	Group IIa and Group llb	6.728	0.000	S