In vitro study of effects of aging and processing conditions on colour change in maxillofacial silicone elastomers

Table 2 Mean ∆E₀₀ scores and standard deviations representing degree of colour change after 6000 h

Molding Stone Colours	100 °C group	25 °C group	^ap
Molding Stone Colours	Mean ∆E₀₀ ± sd	Mean ∆E₀₀ ± sd	^ap
Control	4.11 ± 1.70	2.78 ± 1.87	0.225
Yellow	3.28 ± 1.60	1.71 ± 1.02	0.017*
Green	3.36 ± 1.92	2.39 ± 1.06	0.181
White	6.99 ± 4.52	2.06 ± 1.03	0.007*
Blue	2.84 ± 1.68	1.63 ± 1.03	0.069
Reddish-Brown	3.16 ± 0.61	3.40 ± 1.06	0.542

^aIndependent samples t test, *p < 0.05, ∆E_00: Colour change, sd: standart deviation
P-values set in boldface indicate statistical significance

ISSN: 1472-6831