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Table 2 Intra-group comparisons of the vibration and control sides within the force group

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

Variables Vibration (N = 10) Control (N = 10) Z P
Mean ± SD/mm3 Mean ± SD/mm3
Buccal 0.161 ± 0.107 0.176 ± 0.192 − 0.561 0.575
Palatal 0.074 ± 0.078 0.062 ± 0.056 − 0.255 0.799
Mesial 0.144 ± 0.089 0.142 ± 0.175 − 0.051 0.959
Distal 0.098 ± 0.085 0.082 ± 0.078 − 0.663 0.508
Cervical 0.201 ± 0.112 0.186 ± 0.148 − 0.255 0.799
Mid 0.186 ± 0.154 0.21 ± 0.231 − 0.255 0.799
Apical 0.088 ± 0.085 0.066 ± 0.06 − 0.764 0.445
Total 0.476 ± 0.236 0.462 ± 0.337 − 0.051 0.959
  1. Wilcoxon signed-rank test, *p ≤ 0.05 statistical significance at level α = 0.05. SD standard deviation