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Table 3 Values at T1 (begin of the treatment) and T2 (end of the treatment) in the subgroup 1 and subgroup 2. Intra-group differences

From: A retrospective cephalometric study on pharyngeal airway space changes after rapid palatal expansion and Herbst appliance with or without skeletal anchorage

  Subgroup 1 (T1) Subgroup 1 (T2) p value Subgroup 2 (T1) Subgroup 2 (T2) p value
SNA (degrees) 81.1 ± 4.6 80.2 ± 4.5 0.025* 82.3 ± 4.7 81.5 ± 3.9 0.163
SNB (degrees) 75.3 ± 3.6 76.6 ± 3.9 0.004* 76.8 ± 3.1 77.6 ± 2.7 0.061
ANB (degrees) 5.8 ± 2.4 3.5 ± 2.2 0.000* 5.5 ± 2.3 3.9 ± 2.3 0.002*
SN-GoMe (degrees) 35 ± 5.9 34 ± 5.7 0.078 34.4 ± 4.7 34.9 ± 5.4 0.364
A/Olp (mm) 78.5 ± 3.6 77.7 ± 3.7 0.119 75.5 ± 3.7 75.6 ± 3.6 0.810
Pg/Olp (mm) 80.3 ± 6.1 82.6 ± 6.8 0.005* 77 ± 6.8 78 ± 6.4 0.027*
AD1 (mm) 21.4 ± 4.2 22.5 ± 3.8 0.160 19.9 ± 3.8 20.8 ± 3.7 0.067
AD2 (mm) 15.1 ± 3.1 17.5 ± 3 0.000* 15.3 ± 2.7 16.2 ± 3.2 0.009*
AD-PtV (mm) 8 ± 3.5 9.7 ± 3.7 0.000* 8.1 ± 2.5 9 ± 2.5 0.013*
OA (mm) 11.2 ± 2.3 12.9 ± 2.5 0.000* 10.1 ± 1.9 11 ± 1.8 0.168
LA (mm) 11.7 ± 2.2 13.4 ± 2.9 0.000* 12.2 ± 2.8 13.2 ± 2.8 0.061
  1. *p < 0.05