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Table 4 Means ± standard deviation of the color characteristics in the L*a*b* color space (CIELAB) for each experimental group and the control groups

From: Mechanical and aesthetics compatibility of Brazilian red propolis micellar nanocomposite as a cavity cleaning agent

Treatment Micellar nanocomposites loaded with EARP applied before dentin etching Micellar nanocomposites loaded with EARP applied after dentin etching
L* a* b* L* a* b*
Micellar nanocomposites 0.3% (RP3) 45.46 ± 2.46Aa − 1.08 ± 1.09Aa 3.83 ± 1.67Aa 47.21 ± 2.60Aa − 2.05 ± 0.42Ab 3.66 ± 1.32Aa
RP3 control 45.02 ± 3.04Aa −1.33 ± 0.53Aa 3.39 ± 1.89Aa 48.90 ± 1.94Ab − 2.25 ± 0.44Ab 3.93 ± 1.23Aa
Micellar nanocomposites 0.6% (RP6) 43.50 ± 1.11Ba − 0.93 ± 0.62Aa 0.98 ± 1.22Ba 43.28 ± 3.75Ba − 0.89 ± 0.88Ba 2.76 ± 0.89Aa
RP6 control 44.85 ± 2.35Ba − 1.61 ± 0.45Aa 1.84 ± 1.63Aa 46.20 ± 1.87Aa − 1.17 ± 0.52Aa 2.84 ± 1.60Aa
Micellar nanocomposites 1.0% (RP1) 44.44 ± 2.41Ba − 1.61 ± 0.53Aa 3.30 ± 1.38Aa 43.33 ± 2.31Ba − 0.94 ± 0.32Ba 1.63 ± 1.74Ba
RP1 control 46.02 ± 2.58Aa − 1.70 ± 0.65Aa 3.04 ± 1.02Aa 45.46 ± 2.92Aa − 1.55 ± 0.48Aa 2.44 ± 1.54Aa
  1. F test (ANOVA) followed by the Tukey test for paired comparisons of L*, a*, and b* CIELAB coordinates. When all the capital letters (columns) are different, there is a significant difference between color changes for each CIELAB coordinate. When all the lower case letters (rows) are different, there is a significant difference between different processing techniques in the same CIELAB coordinate by Tukey’s paired comparisons. EARP, ethyl acetate extract of Brazilian red propolis