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Table 4 Post-treatment comparison (T2) of the mean values of cephalometric analysis between the RME-RTB, RME-FM, and control groups

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 30.76 ± 2.80 32.38 ± 4.55 31.30 ± 4.19 0.567 0.552 0.936 0.768
 < Ar-T-Vert T 26.69 ± 3.06 27.61 ± 3.92 26 ± 3.71 0.524 0.791 0.872 0.499
Antero-posterior skeletal measurements
 < SNA 81.15 ± 2.79 80.23 ± 3.46 79.26 ± 2.04 0.243 0.684 0.217 0.669
 < SNB 81.15 ± 3.31 80.73 ± 2.99 82.88 ± 2.27 0.142 0.923 0.299 0.152
 < ANB 0.00 ± 1.08 − 0.50 ± 1.93 − 3.61 ± 1.34 0.008** 0.674 0.006** 0.005**
Wits (mm) − 3.92 ± 3.56 − 4.84 ± 2.19 − 8.53 ± 2.40 0.009** 0.678 0.005** 0.006**
 A-Vert T (mm) 66.80 ± 5.92 62.88 ± 5.80 65.15 ± 4.50 0.192 0.179 0.724 0.547
 Ptm-Vert T (mm) 18.80 ± 3.05 16.30 ± 2.68 18.76 ± 2.42 0.038* 0.063 0.992 0.063
 Co-A (mm) 87.73 ± 4.80 85.84 ± 7.53 82.46 ± 5.75 0.096 0.712 0.085 0.344
 Pr-Vert T (mm) 69.76 ± 7.03 65.30 ± 6.48 67.07 ± 4.44 0.182 0.169 0.506 0.748
 B-Vert T (mm) 67.15 ± 9.29 61.30 ± 8.41 69.30 ± 6.48 0.048* 0.172 0.783 0.045
 Id-Vert T (mm) 69.15 ± 9.29 63.46 ± 7.86 70.76 ± 6.40 0.064 0.177 0.862 0.066
 Co-Gn (mm) 119.07 ± 9.16 115.92 ± 10.34 113.61 ± 8.08 0.333 0.662 0.367 0.804
 Co-Go (mm) 56.30 ± 4.78 56.76 ± 7.66 52.23 ± 5.70 0.136 0.986 0.225 0.163
 Go-Gn (mm) 78 ± 6.63 75.61 ± 8.06 74.15 ± 5.25 0.358 0.647 0.325 0.846
 Co-Vert T (mm) 16.73 ± 2.42 17.84 ± 2.79 14.03 ± 2.76 0.008** 0.546 0.035* 0.004**
Vertical skeletal measurements
 < ML-SBL 27.69 ± 5.46 27.53 ± 6.29 25.92 ± 6.38 0.714 0.991 0.734 0.771
 < NL-SBL − 0.69 ± 2.17 1.23 ± 3.58 0.30 ± 1.60 0.185 0.153 0.598 0.634
 < NL-ML 28.46 ± 4.42 26.30 ± 4.21 25.61 ± 5.53 0.292 0.488 0.295 0.927
 < Ar-Go-Me 132.46 ± 4.46 128.92 ± 5.79 134.69 ± 4.81 0.027* 0.185 0.508 0.016*
 ANS-Me (mm) 67.38 ± 6.07 63.30 ± 4.69 60.69 ± 4.40 0.006** 0.114 0.004** 0.408
Dentoalveolar measurements
 < UI-SN 113.61 ± 5.51 112.30 ± 7.83 107.76 ± 10 0.164 0.902 0.168 0.322
 < IMPA 85.46 ± 6.33 84.76 ± 8.91 81.92 ± 9.07 0.519 0.971 0.529 0.657
Measurements for assessment of condyle inclination
 < CondAx-Vert T 22.15 ± 3.69 19.30 ± 6.35 24.23 ± 4.08 0.045* 0.304 0.528 0.033*
 < CondAx-SBL 69.30 ± 4.97 72.92 ± 7.34 66.92 ± 3.40 0.028* 0.221 0.512 0.022*
 < CondAx-ML 139.30 ± 6.87 135.38 ± 8.18 139.69 ± 4.80 0.219 0.319 0.988 0.249
 < Ar-Go-Vert T 14.84 ± 5.45 12.61 ± 4.35 20.46 ± 2.43 0.008** 0.383 0.009** 0.003**
  1. *Significant
  2. **Highly significant