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Table 3 Pre-treatment comparison (T1) of the mean values of cephalometric analysis between RME-RTB, RME-FM, and control group

From: Effectiveness of reverse twin block with lip pads-RME and face mask with RME in the early treatment of class III malocclusion

Parameters RME-RTB (n = 13), X ± SD RME-FM (n = 13), X ± SD Control (n = 13), X ± SD   p value
p value RME-RTB, RME-FM RME-RTB control RME-FM control
Measurements for assessment of cranial base angulations
 < Ba-T-Vert T 31.15 ± 3.97 32.23 ± 4.76 31.07 ± 4.46 0.756 0.806 0.993 0.786
 < Ar-T-Vert T 26.53 ± 4.09 27.61 ± 2.90 26.07 ± 4.27 0.574 0.753 0.944 0.569
Antero-posterior skeletal measurements
 < SNA 79.15 ± 3.18 78.92 ± 3.14 78.46 ± 2.10 0.824 0.974 0.813 0.918
 < SNB 82.23 ± 2.71 81.46 ± 2.84 81.50 ± 2.10 0.697 0.723 0.752 0.998
 < ANB − 3.07 ± 1.65 − 2.53 ± 2.06 − 3.03 ± 1.36 0.675 0.704 0.992 0.746
 Wits (mm) − 8.15 ± 2.37 − 7.23 ± 2.24 − 7.50 ± 2.50 0.596 0.589 0.761 0.952
 A-Vert T (mm) 63.76 ± 6.39 60.38 ± 6.14 63.42 ± 4.44 0.261 0.306 0.987 0.372
 Ptm-Vert T (mm) 18.07 ± 2.92 15.76 ± 2.77 18.15 ± 2.19 0.042* 0.085 0.992 0.072
 Co-A (mm) 83.38 ± 5.82 81.38 ± 7.93 80.69 ± 5.32 0.544 0.714 0.543 0.962
 Pr-Vert T (mm) 67.23 ± 6.83 62.38 ± 7.19 65.53 ± 4.29 0.146 0.133 0.775 0.414
 B-Vert T (mm) 67.53 ± 8.57 61.07 ± 9.34 66.46 ± 6.27 0.118 0.122 0.946 0.225
 Id-Vert T (mm) 69.38 ± 7.98 62.69 ± 9.18 67.69 ± 6.68 0.104 0.097 0.855 0.266
 Co-Gn (mm) 114.69 ± 8.71 110.07 ± 10.1 110 ± 6.97 0.302 0.372 0.363 0.962
 Co-Go (mm) 53.30 ± 4.19 52.84 ± 7.39 50.84 ± 4.86 0.501 0.975 0.517 0.641
 Go-Gn (mm) 76.30 ± 6.70 72.23 ± 7.63 72.61 ± 4.95 0.224 0.264 0.339 0.986
 Co-Vert T (mm) 15.46 ± 3.16 16.53 ± 2.87 13.61 ± 2.50 0.047* 0.603 0.242 0.032*
Vertical skeletal measurements
 < ML-SBL 26.92 ± 5.04 26.76 ± 7.22 26.23 ± 6.22 0.955 0.995 0.952 0.977
 < NL-SBL − 0.15 ± 1.99 1.23 ± 4.93 0.76 ± 1.09 0.525 0.504 0.731 0.928
 < NL-ML 27.15 ± 4.82 25.53 ± 3.35 25.46 ± 5.48 0.586 0.65 0.626 0.999
 < Ar-Go-Me 131.84 ± 4.82 129.69 ± 5.67 133.15 ± 3.67 0.198 0.498 0.768 0.173
 ANS-Me (mm) 63.30 ± 5.36 59.84 ± 4.18 59.15 ± 4.33 0.063 0.156 0.079 0.922
Dentoalveolar measurements
 < UI-SN 110.53 ± 6.10 106.84 ± 9.80 105.38 ± 10.4 0.337 0.552 0.321 0.917
 < IMPA 85.23 ± 5.67 85.38 ± 9.15 84.53 ± 9.23 0.96 0.99 0.972 0.963
Measurements for assessment of condyle inclination
 < CondAx-Vert T 20 ± 4.47 20.92 ± 8.75 23.46 ± 3.23 0.321 0.91 0.31 0.533
 < CondAx-SBL 71.46 ± 5.01 70.53 ± 8.81 66.76 ± 2.48 0.126 0.926 0.136 0.263
 < CondAx-ML 136.23 ± 5.05 136.61 ± 7.64 139.23 ± 5.64 0.414 0.985 0.446 0.532
 < Ar-Go-Vert T 16.53 ± 4.77 14.38 ± 6.27 19.69 ± 2.78 0.026* 0.494 0.239 0.024*
  1. *Significant