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Table 2 Airway measurements before before (T1) and after treatment (T2) treatment with tooth-borne facemask (TBFM)

From: Comparison of the effects on the pharyngeal airway space of maxillary protraction appliances according to the methods of anchorage

  SPPS MPS IPS SPPA MPA IPA
TBFM T1 Mean 11.46 12.26 12.56 248.32 190.70 298.22
SD 2.19 3.35 2.17 52.59 23.61 56.76
T2 Mean 12.78 13.68 13.67 285.29 218.99 324.86
SD 2.01 2.97 2.07 64.91 33.60 65.19
P 0.022 0.099 0.056 0.023 0.001 0.109
  1. Independent t test, P < 0.05; measurements are in millimeters
  2. SD standard deviation