Observational Study
Copyright ©The Author(s) 2020.
World J Clin Cases. Feb 26, 2020; 8(4): 743-756
Published online Feb 26, 2020. doi: 10.12998/wjcc.v8.i4.743
Table 8 Mann-Whitney U statistical test for the variable categorized procedure time
Enamel loss in μm
Mann-Whitney U440.50
Wilcoxon W1665.50
Z-3.88
Asymp. Sig. (2-tailed)0.000