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Table 2 Cephalometric measurement changes of the study group in different treatment stages

From: Changes in lips, cheeks and tongue pressures after upper incisor protrusion in Class II division 2 malocclusion: a prospective study

  T1-T0 T2-T1 T2-T0
Mean difference ± SD p Mean difference ± SD p Mean difference ± SD p
U1-SN (°) 19.43 ± 1.47 0.000* −2.21 ± 0.97 0.107 17.22 ± 1.43 0.000*
U1-NA (°) 20.02 ± 1.45 0.000* −2.30 ± 0.90 0.058 17.72 ± 1.31 0.000*
U1-NA (mm) 6.29 ± 0.43 0.000* −0.26 ± 0.28 1.000 6.03 ± 0.30 0.000*
  1. *p < 0.001