Table 3 Descriptive statistics and statistical comparisons of the T1-T2 changes
Cephalometric measures | cHerbst group | Control group | Net change | P value | ||
|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | |||
Skeletal measures | ||||||
Co hor (mm) | −0.9 | 1.2 | −0.4 | 1.3 | −0.5 | 0.198 |
Co ver (mm) | 0.3 | 1.2 | 0.9 | 1.3 | −0.6 | 0.098 |
A hor (mm) | 0.5 | 1.0 | 0.9 | 1.2 | −0.4 | 0.161 |
B hor (mm) | 1.7 | 1.9 | 1.0 | 1.7 | 0.7 | 0.185 |
Pg hor (mm) | 1.9 | 2.1 | 1.4 | 2.1 | 0.5 | 0.383 |
Me ver (mm) | 3.4 | 1.6 | 2.6 | 2.7 | 0.8 | 0.193 |
Co-A (mm) | 1.6 | 1.5 | 1.3 | 1.8 | 0.3 | 0.593 |
Co-Gn (mm) | 4.0 | 1.8 | 2.7 | 2.4 | 1.3 | 0.026 |
Co-Go (mm) | 2.7 | 3.7 | 1.1 | 1.5 | 1.6 | 0.071 |
Go-Me (mm) | 1.4 | 3.1 | 1.3 | 2.7 | 0.1 | 0.913 |
SNA (°) | −0.3 | 0.9 | 0.2 | 1.1 | −0.5 | 0.142 |
SNB (°) | 0.8 | 1.0 | 0.1 | 0.8 | 0.7 | 0.014 |
SNPog (°) | 0.7 | 0.9 | 0.3 | 0.6 | 0.4 | 0.122 |
ANB (°) | −1.1 | 1.0 | 0.0 | 0.7 | −1.1 | 0.000 |
pp to T-FMN (°) | 0.7 | 1.2 | −0.5 | 1.9 | 1.2 | 0.005 |
ml to T-FMN (°) | 0.3 | 1.9 | 0.1 | 2.0 | 0.2 | 0.684 |
Co-Go-Me (°) | 0.6 | 2.8 | 0.7 | 1.7 | −0.1 | 0.890 |
Dental measures | ||||||
Overjet (mm) | −2.7 | 1.9 | 0.0 | 0.8 | −2.7 | 0.000 |
Overbite (mm) | −2.7 | 1.3 | −0.4 | 0.7 | −2.3 | 0.000 |
ms hor (mm) | −1.6 | 1.6 | 1.1 | 1.7 | −2.7 | 0.000 |
ms ver (mm) | 1.4 | 1.2 | 1.7 | 1.9 | −0.3 | 0.501 |
Upper molar tipping (°) | −5.7 | 4.5 | 1.4 | 4.1 | −7.1 | 0.000 |
mi hor (mm) | 3.6 | 1.9 | 1.1 | 1.7 | 2.5 | 0.000 |
mi ver (mm) | 2.6 | 1.3 | 1.6 | 2.0 | 1.0 | 0.031 |
is hor (mm) | 0.1 | 1.8 | 1.0 | 1.3 | −0.9 | 0.076 |
is ver (mm) | 1.6 | 1.4 | 1.1 | 1.6 | 0.5 | 0.291 |
ii hor (mm) | 2.9 | 1.7 | 1.0 | 1.6 | 1.9 | 0.000 |
ii ver (mm) | 4.3 | 1.7 | 1.5 | 2.0 | 2.8 | 0.000 |
Upper incisor inclination (°) | −2.3 | 4.6 | 0.3 | 2.1 | −2.6 | 0.023 |
Lower incisor inclination (°) | 4.6 | 4.1 | −0.8 | 3.4 | 5.4 | 0.000 |