Table 1 The cephalometric data before and after orthodontic treatment
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 |