TABLE 4. Density values of restorative materials expressed as equivalent of aluminum thickness (mmAl). Comparison results among the groups and regarding enamel and dentin.

Materials	Density means - mmAl	Enamel 4.19 (± 0.008) n=15		Dentin 2.57(± 0.0004) n=15
		F	p	F	p
TPH	6.24 ± 0.28	175.62	<0.0001*	934.0	<0.0001*
F2000	5.92 ± 0.15	144.68	<0.0001*	998.37	<0.0001*
Synergy	4.77 ± 0.23	15.07	<0.0008*	374.65	<0.0001*
Prisma Flow	4.51 ± 0.24	4.66	0.042*	285.87	<0.0001*
Degufill	4.33 ± 0.21	1.04	0.3186	248.05	<0.0001*
Luxat	1.99 ± 0.07	25.69	<0.0001*	32.89	<0.0001*

^*Statistical difference at significance level of 5%