. 2022 Mar;56(1):22–32. doi: 10.15644/asc56/1/3

Table 4. Means and standard deviations of color change in L, a, and b* axis (color change 1st-30th day) of microhybrid and nanocomposite in three different solutions.

Material	Solution	∆L	∆a	∆b
Filtek Z250	Tea	7.73+1.56 ^A	-2.09+0.45^B	-6.35+1.65^C
	Coffee	8.15+1.40 ^A	-1.57+0.57 ^B	-4.24+0.77^C
	Coca-Cola	-0.38+0.36	0.11+0.28	0.26+0.36
	Distilled water	-0.45+0,20	0.67+0.25	0.05+0.47
Filtek Z550	Tea	5.83+1.27 ^A	-1.71+0.37^B	-5.87+1.06^C
	Coffee	9.27+1.94 ^A	3.36+0.58 ^B	8.80+0.99^C
	Coca-Cola	-1,50+0.79	-0.09+0.19	-0.81+0.63
	Distilled water	-0.32+0.87	-0.10+0.11	0.01+0.46
∆L -(brightness) values; ∆a (change along red-green axis) values; ∆b- (change along yellow-blue axis) values ^A-statistically significant decrease in the value of L* parameters ^B-statistically significant increase in the value of a* parameters ^C--statistically significant increase in the value of b* parameters

Table 4. Means and standard deviations of color change in L*, a*, and b* axis (color change 1st-30th day) of microhybrid and nanocomposite in three different solutions.