Table 4 Descriptive statistics and statistical comparisons (independent-samples t tests) of the final forms (cephalometric values at T2)
Variables | Prepubertal | Pubertal | Diff | P value | 95% CI of the difference | |||
|---|---|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | Lower | Upper | |||
SNA (°) | 80.2 | 3.2 | 80.5 | 3.9 | − 0.3 | 0.803 | − 2.5 | 1.9 |
SNB (°) | 78.6 | 3.7 | 79.1 | 3.4 | − 0.5 | 0.605 | − 2.8 | 1.7 |
ANB (°) | 1.6 | 2.3 | 1.4 | 3.1 | 0.2 | 0.865 | − 1.5 | 1.8 |
Wits (mm) | − 1.6 | 2.3 | − 2.6 | 4.4 | 1 | 0.374 | − 1.2 | 3.0 |
Co-Gn (mm) | 101.9 | 5.2 | 106.8 | 6.5 | − 4.9 | 0.010* | − 8.4 | − 1.2 |
SN-Pal. Pl. (°) | 7.5 | 3.0 | 8.4 | 3.3 | − 0.9 | 0.367 | − 2.9 | 1.1 |
SN-GoMe (°) | 35.4 | 6.9 | 37.0 | 6.0 | − 1.6 | 0.424 | − 5.7 | 2.5 |
Pal. Pl.-Mand.Pl (°) | 27.8 | 5.9 | 28.6 | 5.3 | − 0.8 | 0.676 | − 4.3 | 2.8 |
ArGoMe (°) | 130.3 | 5.7 | 131.4 | 5.7 | − 1.1 | 0.560 | − 4.6 | 2.5 |
Pal. Pl.-Occl. Pl. (°) | 9.2 | 3.1 | 7.9 | 3.2 | 1.3 | 0.213 | − 0.7 | 3.2 |
Occl. Pl.-Mand. Pl. (°) | 18.7 | 4.9 | 20.7 | 3.6 | − 2 | 0.156 | − 4.7 | 0.8 |
I^SN (°) | 108.0 | 7.5 | 105.8 | 6.3 | 2.2 | 0.313 | − 2.2 | 6.6 |
I^Pal. Pl. (°) | 64.5 | 8.4 | 66.7 | 5.9 | − 2.2 | 0.355 | − 6.8 | 2.5 |
IMPA (°) | 83.7 | 9.2 | 82.3 | 7.3 | 1.4 | 0.609 | − 3.9 | 6.6 |