Color Stability of Glass Ionomer Cement after Reinforced with Two Different Nanoparticles

Table 2

Difference in color change among different groups at one hour.

Scheffe^a group	N	Subset for alpha = 0.05
		1	2	3
Control	15	1.3460
Carbon nanotube reinforced	15		5.8660
Silver nanoparticle reinforced	15			22.1340
Sig.		1.000	1.000	1.000

Means for groups in homogeneous subsets are displayed. ^aUses harmonic mean sample size = 15.000.