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Table 4 Differences between T2 (end of therapy) and T1 (begin of therapy) in the two subgroups. Between-groups 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 T2–T1 Subgroup 2 T2–T1 p value
SNA (degrees) −0.9 ± 1.6 −0.8 ± 2.5 0.88
SNB (degrees) 1.3 ± 1.7 0.8 ± 1.7 0.36
ANB (degrees) −2.3 ± 1.1 −1.6 ± 2 0.18
SN-GoMe (degrees) −1 ± 2.5 0.5 ± 2.2 0.05
A/Olp (mm) −0.8 ± 2.2 0.1 ± 1.8 0.17
Pg/Olp (mm) 2.3 ± 3.3 1 ± 1.9 0.13
AD1 (mm) 1.1 ± 3.5 0.9 ± 1.9 0.74
AD2 (mm) 2.4 ± 1 0.9 ± 1.4 0.00*
AD-PtV (mm) 1.7 ± 1.4 0.9 ± 1.4 0.07
OA (mm) 1.7 ± 1.2 0.9 ± 0.6 0.01*
LA (mm) 1.65 ± 3.6 1 ± 2.2 0.49
  1. *p < 0.05