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Table 4 Root resorption crater volume at different regions in the two study groups

From: The effect of two different types of forces on possible root resorption in relation to dentin phosphoprotein levels: a single-blind, split-mouth, randomized controlled trial

  Continuous force Intermittent force Mean difference (SD) 95% CI WSR
P value
Mean ± SD
Buccal      
Cervical 0.15 ± 0.08 0.05 ± 0.03 0.10 (0.08) 0.03, 0.16 0.008*
Middle 0.06 ± 0.008 0.005 ± 0.0007 0.06 (0.007) − 0.003, 0.12 0.18
Apical 0.06 ± 0.002 0.06 ± 0.001 0.0002 (0.0007) − 0.004, 0.009 0.18
P value 0.16 0.22    
Lingual      
Cervical 0.16 ± 0.02 0.11 ± 0.001 0.05 (0.02) − 0.16, 0.25 0.18
Middle 0.14 ± 0.00 0.004 ± 0.00 0.14 (0.00) − 0.001, 0.001 0.18
Apical 0.14 ± 0.02 0.03 ± 0.002 0.12 (0.03) − 0.12, 0.35 0.18
P value 0.37 0.37    
Mesial      
Cervical 0.18 ± 0.02 0.06 ± 0.06 0.14 (0.05) − 0.06, 0.21 0.07
Middle 0.09 ± 0.0007 0.05 ± 0.04 0.05 (0.02) − 0.12, 0.22 0.18
Apical 0.06 ± 0.001 0.06 ± 0.02 0.0004 (0.03) 0.25, 0.26 0.66
P value 0.14 0.17    
Distal      
Cervical 0.12 ± 0.01 0.11 ± 0.001 0.01 (0.02) − 0.13, 0.15 0.18
Middle 0.06 ± 0.001 0.05 ± 0.001 0.001 (0.00) − 0.01, 0.01 0.16
Apical 0.07 ± 0.001 0.07 ± 0.0007 0.001 (0.002) − 0.02, 0.02 0.32
P value 0.14 0.14    
  1. WSR Wilcoxon signed rank test, SD standard deviation, CI confidence interval
  2. *Statistically significant at P value < 0.05