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Table 3 Differences in mean a* among study groups

From: Effect of vulcanization temperature and dental stone colour on colour degradation of maxillofacial silicone elastomers

Groups Room temperature High temperature a p
Mean a* ± SD Mean a* ± SD
Control group 2.15 ± 0.31 2.30 ± 0.41 0.118
White 2.41 ± 0.42 1.77 ± 0.41 <0.001*
Blue 2.33 ± 0.31 1.96 ± 0.46 <0.001*
Yellow 2.09 ± 0.44 1.81 ± 0.49 0.027*
Green 2.23 ± 0.37 1.29 ± 0.34 <0.001*
Reddish-brown 3.83 ± 0.64 3.56 ± 0.70 0.123
  1. aIndependent samples t test
  2. *p < 0.05