Skip to main content

Advertisement

Table 2 Comparison of cephalometric variables between pretreatment and posttreatment stages for the non-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
 Mx4.BOP(n = 30) 79.26 6.15 79.74 5.71 0.679
 Mx5.BOP(n = 30) 85.64 5.79 86.76 5.92 0.341
 Mx6.BOP(n = 30) 91.71 6.88 89.06 4.99 0.103
 Mx7.BOP(n = 27) 101.52 8.10 97.53 6.51 0.018*
  Mx4PP (n = 29) 90.78 6.22 89.38 7.19 0.215
  Mx5PP (n = 29) 84.40 6.22 82.37 8.59 0.092
  Mx6PP (n = 30) 78.33 7.43 80.07 5.42 0.268
  Mx7PP (n = 27) 68.77 8.70 71.91 8.37 0.070
Mandibular teeth mesio-distal angulations
 Md4.BOP(n = 30) 77.19 5.51 81.30 4.74 0.000*
 Md5.BOP(n = 30) 77.26 5.12 83.16 5.04 0.000*
 Md6.BOP(n = 30) 75.26 5.63 83.80 5.78 0.000*
 Md7.BOP(n = 27) 69.52 5.70 77.68 7.87 0.000*
  Md4MP (n = 30) 79.06 5.52 75.48 5.22 0.000*
  Md5MP (n = 30) 78.98 5.03 73.61 4.94 0.000*
  Md6MP (n = 30) 80.98 7.06 72.96 5.69 0.000*
  Md7MP (n = 27) 86.72 7.23 79.16 6.46 0.000*
Interdental angulations
 Mx4.Md4 (n = 29) 156.46 8.88 161.05 6.42 0.003*
 Mx5.Md5 (n = 29) 162.90 7.83 169.21 6.74 0.000*
 Mx6.Md6 (n = 30) 166.85 8.07 171.29 5.45 0.023*
 Mx7.Md7 (n = 27) 171.79 9.03 175.49 9.59 0.060
  1. *Statistically significant at P < 0.05