Influence of Different Beverages on the Color Stability of Nanocomposite Denture Base Materials

Table 2

Grouping and coding of different variables.

Variables solution	1^st group (control)	2^nd group		3^rd group		4^th group		Total
		ZrO2 (Z)		TiO2 (T)		SiO2 (S)
	V0	3%	7%	3%	7%	3%	7%
		Z3	Z7	T3	T7	S3	S7
Coffee	10 samples	10	10	10	10	10	10	70
Tea	10	10	10	10	10	10	10	70
Coca-Cola	10	10	10	10	10	10	10	70
Mineral water	10	10	10	10	10	10	10	70
Total	40	40	40	40	40	40	40	280