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Table 4 Comparisons of root resorption between the groups on the control side

From: The effect of 12 weeks of mechanical vibration on root resorption: a micro-CT study

Variables No-force (N = 10) Force (N = 10) U P
Mean ± SD/mm3 Mean ± SD/mm3
Buccal 0.019 ± 0.054 0.176 ± 0.192 8.000 0.001*
Palatal 0.009 ± 0.03 0.062 ± 0.056 12.500 0.002*
Mesial 0.000 0.142 ± 0.175 10.000 0.001*
Distal 0.002 ± 0.003 0.082 ± 0.078 13.000 0.003*
Cervical 0.028 ± 0.084 0.186 ± 0.148 7.000 0.001*
Mid 0.001 ± 0.002 0.21 ± 0.231 0.000 < 0.001*
Apical 0.002 ± 0.006 0.066 ± 0.06 6.500 < 0.001*
Total 0.031 ± 0.085 0.462 ± 0.337 2.000 < 0.001*
  1. Wilcoxon signed-rank test, *p ≤ 0.05 statistical significance at level α = 0.05. SD standard deviation