. 2011 Nov-Dec;19(6):623–627. doi: 10.1590/S1678-77572011000600013

Table 1.

∆E* mean and standard deviation (SD) for each denture tooth resin material according to the tested solutions within each period of immersion

Material	Solution	*∆E mean and SD**
		7th cycle	21st cycle	30th cycle	45th cycle	60th cycle	90th cycle
	W	0.268±0.038^Aa	0.862±0.072^Ab	0.870±0.118^BCb	0.880±0.132^Ab	0.844±0.125^Ab	0.798±0.119^Bb
	H1%	0.266±0.095^Aa	0.888±0.136^Ab	0.696±0.060^Ac	0.738±0.060^Abc	0.688±0.066^Acd	0.534±0.050^Ad
A	H2%	0.238±0.065^Aa	0.820±0.044^Ab	0.764±0.105^ACbd	0.728±0.041^Ab	0.836±0.058^Abd	0.664±0.129^ABCd
	H5.25%	0.228±0.039^Aa	0.900±0.075^Ab	0.806±0.054^ACc	0.830±0.064^Ac	0.816±0.048^Ac	0.718±0.058^BCd
	G2%	0.204±0.047^Aa	0.806±0.019^Ab	0.714±0.026^Ac	0.790±0.035^Ab	0.780±0.071^Abc	0.588±0.021^Ad
	GC4%	0.192±0.013^Aa	0.906±0.072^Ab	0.710±0.060^Ac	0.874±0.092^Ab	0.726±0.100^Ac	0.542±0.055^Ad
	W	0.358±0.023^Aa	0.698±0.021^Abc	0.676±0.166^Bb	0.902±0.207^Bc	0.702±0.043^Abc	0.628±0.063^Ab
	H1%	0.616±0.069^Bab	0.978±0.556^Ba	0. 474±0.136^Ab	0.550±0.218^Ab	0.450±0.048^Bb	0.326±0.111^Cb
T	H2%	0.344±0.036^Aa	0.686±0.028^Abc	0.662±0.053^Bbc	0.720±0.032^ABc	0.632±0.014^Ab	0.640±0.030A^b
	H5.25%	0.346±0.019^Aa	0.704±0.046^Ab	0.662±0.033^ABb	0.700±0.044^ABb	0.686±0.029^Ab	0.552±0.086^ABb
	G2%	0.324±0.041^Aa	0.692±0.066^Ab	0.648±0.044^ABbc	0.746±0.033^ABb	0.684±0.047^Ab	0.554±0.058^ABc
	GC4%	0.324±0.038^Aa	0.658±0.035^Ab	0.600±0.092^ABbc	0.678±0.060^ABb	0.646±0.090^Ab	0.502±0.038^ABc

ΔE* means followed by the same letters are not significantly different. Uppercase letters for vertical comparisons and lowercase letters for horizontal comparisons. A: Artiplus; T: Trilux.