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Table 1 The cephalometric data before and after orthodontic treatment

From: Displacement in root apex and changes in incisor inclination affect alveolar bone remodeling in adult bimaxillary protrusion patients: a retrospective study

Parameter T0 T1 P Value
Mean SD 25% Percentile Median 75% Percentile Mean SD 25% Percentile Median 75% Percentile
SNA(°) 81.7 3.1 80.1 81.8 82.7 81.2 2.2 80.0 80.7 82.9 0.4W
SNB(°) 75.7 3.1 74.0 75.7 77.6 75.6 2.4 73.6 75.9 77.1 0.8T
ANB(°) 6.0 1.3 4.9 6.0 6.8 5.6 1.2 4.5 5.5 6.4 0.1T
U1-SN(°) 108.8 6.7 104.4 108.2 114.5 99.2 6.5 94.6 100.5 102.0 < 0.001T
U1-NA(°) 26.4 5.7 22.1 27.2 30.7 19.0 6.9 15.2 19.6 24.6 < 0.001T
U1-NA (mm) 2.4 0.8 1.8 2.4 3.0 1.6 0.7 1.0 1.5 2.0 < 0.001T
MP-SN(°) 39.3 5.7 35.2 39.5 42.7 38.8 5.2 36.1 38.5 41.7 0.6T
MP-FH(°) 30.0 5.7 25.3 29.5 32.8 30.3 4.8 26.1 30.3 33.6 0.4W
L1-MP(°) 98.5 6.4 93.8 98.6 104.5 92.1 7.5 84.7 93.7 97.0 < 0.01T
L1-NB(°) 34.1 5.9 31.3 34.2 38.3 27.3 6.6 23.3 87.1 32.0 < 0.001T
L1-NB (mm) 4.7 1.2 4.0 4.9 5.4 3.1 0.9 2.5 3.1 3.8 < 0.001T
U1-L1(°) 113.0 6.7 108.2 113.8 117.8 129.3 8.7 123.1 129.5 134.0 < 0.001T
  1. SD standard deviation, T paired t-test, W Wilcoxon test
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