Evaluation of Discoloration Removal by Polishing Resin Composites Submitted to Staining in Different Drink Solutions

Table 2

Mean ± standard deviation values of for all conditions tested. Values followed by the same letters are statistically similar ( > 0.05).

Material	Solution	Time
Herculite Classic	Water	7 days	1.37 ± 0.36
		30 days	1.83 ± 0.35
		After polishing	1.59 ± 0.39
	Cola	7 days	1.61 ± 0.32
		30 days	1.97 ± 0.73
		After polishing	1.73 ± 0.51
	Coffee	7 days	1.33 ± 0.22
		30 days	2.68 ± 0.71
		After polishing	2.09 ± 0.48
	Wine	7 days	3.11 ± 0.72
		30 days	5.30 ± 1.36
		After polishing	2.36 ± 0.53
Durafill VS	Water	7 days	1.18 ± 0.79
		30 days	2.36 ± 0.95
		After polishing	2.11 ± 0.39
	Cola	7 days	1.68 ± 0.56
		30 days	2.27 ± 0.23
		After polishing	1.85 ± 0.36
	Coffee	7 days	1.83 ± 0.44
		30 days	3.81 ± 0.50
		After polishing	2.27 ± 0.72
	Wine	7 days	4.28 ± 0.51
		30 days	6.78 ± 1.03
		After polishing	4.09 ± 0.82
Luna	Water	7 days	3.06 ± 0.57
		30 days	3.59 ± 0.35
		After polishing	2.12 ± 0.57
	Cola	7 days	3.16 ± 0.47
		30 days	4.38 ± 0.37
		After polishing	1.47 ± 0.41
	Coffee	7 days	3.04 ± 0.56
		30 days	4.85 ± 0.51
		After polishing	1.45 ± 0.40
	Wine	7 days	4.26 ± 0.62
		30 days	8.07 ± 0.53
		After polishing	1.55 ± 0.67