Table 2.

NBS values of the heat-polymerized acrylic resin stored in drinks. The groups showing significant difference were marked with an asterisk (*) (p<0.05).

Drinks	Non-aged Groups		Aged Groups
	1 day	7 days	1 day	7 days
Water	0.75	0.79	0.97	1.21
Black tea	0.83	1.75*	1.12	1.61*
Green tea	0.56	0.81	0.54	0.86
Sour cherry juice	0.64	1.17	0.47	1.72*
Coke	0.82	1.18	0.95	1.72*
Coffee	0.72	0.88	0.60	0.60