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Table 3 Comparison of cephalometric variables between pretreatment and posttreatment stages for the extraction group (dependent t tests)

From: Posterior teeth angulation in non-extraction and extraction treatment of anterior open-bite patients

Variables (°) Initial T1 Final T2 P
Mean SD Mean SD
Maxillary teeth mesio-distal angulations
 Mx5.BOP(n = 30) 85.26 3.88 83.64 4.43 0.156
 Mx6.BOP(n = 30) 89.94 4.14 87.00 4.91 0.031*
 Mx7.BOP(n = 24) 102.32 5.24 94.00 5.85 0.000*
  Mx5PP (n = 30) 82.17 6.31 85.02 6.37 0.026*
  Mx6PP (n = 30) 77.49 6.56 81.66 6.88 0.007*
  Mx7PP (n = 24) 65.70 6.88 74.76 6.33 0.000*
Mandibular teeth mesio-distal angulations
 Md5.BOP(n = 30) 77.44 5.99 82.19 5.01 0.001*
 Md6.BOP(n = 30) 76.92 6.10 82.21 5.61 0.000*
 Md7.BOP(n = 24) 73.54 5.24 78.37 6.47 0.003*
  Md5MP (n = 30) 78.60 6.20 72.85 6.88 0.000*
  Md6MP (n = 30) 78.49 6.85 72.83 6.77 0.000*
  Md7MP (n = 24) 80.85 5.70 76.39 7.50 0.001*
Interdental angulations
 Mx5.Md5 (n = 30) 162.00 6.42 165.67 7.91 0.045*
 Mx6.Md6 (n = 30) 166.78 6.91 168.62 6.02 0.150
 Mx7.Md7 (n = 24) 175.45 9.65 168.57 7.09 0.002*
  1. *Statistically significant at P < 0.05