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Table 5 Comparison of oropharynx and hyoid bone position between the maximum and moderate retraction groups

From: Oropharynx and hyoid bone changes in female extraction patients with distinct sagittal and vertical skeletal patterns: a retrospective study

Variable Maximum retraction group (n = 48) Moderate retraction group (n = 72) Maximum retraction group vs Moderate retraction group
T0
Mean (SD)
T1
Mean (SD)
P T0
Mean (SD)
T1
Mean (SD)
P P
Oropharynx
 Vol, mm3 15,929.9 (4897.7) 17,135.1 (6426.2) 0.062 16,252.9 (5913.9) 17,780.1 (6369.7) 0.003* 0.219
 MCA, mm2 243.4 (121.8) 263.0 (143.1) 0.353 243.3 (106.8) 269.3 (112.0) 0.045* 0.083
 PNS-AP 26.7 (3.9) 27.7 (3.4) 0.022* 27.4 (4.3) 28.1 (3.5) 0.033* 0.739
 PNS-lateral 38.7 (3.9) 39.9 (4.6) 0.002* 37.7 (6.4) 39.4 (6.7) 0.000* 0.128
 PNS-AP/ lateral 0.69 (0.09) 0.70 (0.07) 0.572 0.74 (0.11) 0.73 (0.12) 0.167 0.154
 E-AP 12.2 (3.3) 12.7 (4.3) 0.290 13.1 (3.3) 13.2 (3.4) 0.869 0.458
 E- lateral 31.2 (3.5) 31.9 (3.7) 0.044* 30.5 (3.0) 31.2 (2.9) 0.030* 0.691
 E-AP/lateral 0.39 (0.11) 0.40 (0.12) 0.729 0.43 (0.10) 0.42 (0.10) 0.465 0.962
Hyoid
 H-Eb 8.3 (2.0) 8.4 (2.3) 0.660 8.4 (2.5) 8.2 (1.9) 0.852 0.441
 H-Me 43.3 (4.2) 45.5 (6.3) 0.004* 43.9 (5.3) 45.0 (5.2) 0.078 0.664
 H-C3 26.5 (3.3) 27.5 (3.4) 0.003* 27.3 (3.0) 27.1 (2.9) 0.507 0.0.95
 H-X 8.5 (5.8) 6.7 (6.9) 0.008* 6.1 (6.5) 5.1 (7.0) 0.137 0.880
 H-Y 93.2 (5.8) 94.0 (5.8) 0.061 94.8 (5.6) 94.7 (5.3) 0.814 0.044*
  1. *P < 0.05