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Table 3 Comparisons of root resorption between the groups on the vibration 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 0.000 0.161 ± 0.107 0.000 < 0.001*
Palatal 0.002 ± 0.005 0.074 ± 0.078 11.000 0.001*
Mesial 0.015 ± 0.047 0.144 ± 0.089 8.500 0.001*
Distal 0.005 ± 0.015 0.098 ± 0.085 6.000 0.001*
Cervical 0.000 0.201 ± 0.112 5.000 < 0.001*
Mid 0.018 ± 0.056 0.186 ± 0.154 7.000 0.001*
Apical 0.003 ± 0.009 0.088 ± 0.085 7.500 0.001*
Total 0.017 ± 0.337 0.476 ± 0.236 0.000 < 0.001*
  1. Mann–Whitney U test, *p ≤ 0.05 statistical significance at level α = 0.05. SD standard deviation