Table 3.

Analysis of variance (one way ANOVA) of colour difference (ΔE) comparing different groups

Group	Mean	±SD	F value
Deglazed (D)	3.40c	0.59	37.585**
Wheel (Wh)	1.67b	0.28
Kit (K)	1.07a	0.57
Wax (Wx)	1.57b	0.44
Wheel + Wax (WhWx)	1.07a	0.48
Kit + Wax (KWx)	1.06a	0.36

Values with same superscript (a, b, c) do not differ from each other—Tukey’s HSD

** p < 0.001