Table 5.

Comparison of the averages of investigated variables in two groups of heat-cured resin and 3D printer resin.

Parameter	Disinfectant	Studied groups		The difference of the averages	P-value
		Heat cured Mean ± Standard deviation	3D print Mean ± Standard deviation
ΔR	Sodium hypochlorite 0.5%	0.2 ± 0.13	0.18 ± 0.1	0.17	0.2
	Hydrogen peroxide 1%	0.08 ± 0.06	0.15 ± 0.08	-0.39	0.97
	Chlorhexidine 2%	0.12 ± 0.001	0.07 ± 0.04	0.04	0.53
ΔE	Sodium hypochlorite 0.5%	1.44 ± 0.54	2.79 ± 0.38	-1.36	<0.001
	Hydrogen peroxide 1%	1.64 ± 0.82	2.44 ± 0.34	-0.8	0.01
	Chlorhexidine 2%	2.76 ± 1.04	8.17 ± 1.51	-5.4	<0.001
ΔL	Sodium hypochlorite 0.5%	1.08 ± 0.23	0.9 ± 0.82	-0.67	0.11
	Hydrogen peroxide 1%	1.59 ± 0.53	0.41 ± 0.73	0.11	0.51
	Chlorhexidine 2%	1.82 ± 1.06	2.28 ± 1.15	-1.21	0.07