Table 4.
Descriptive statistics and statistical comparisons of the T2-T3 changes
| Cephalometric measures | cHerbst group | Control group | Net change | P value | ||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | |||
| Skeletal measures | ||||||
| Co hor (mm) | −0.6 | 1.1 | −0.5 | 1.2 | 0.1 | 0.876 |
| Co ver (mm) | 0.3 | 1.1 | 0.0 | 1.3 | 0.3 | 0.489 |
| A hor (mm) | 0.8 | 1.5 | 0.3 | 1.8 | 0.5 | 0.276 |
| B hor (mm) | 0.7 | 1.8 | 0.9 | 1.8 | −0.2 | 0.752 |
| Pg hor (mm) | 0.7 | 2.1 | 1.0 | 2.1 | −0.3 | 0.598 |
| Me ver (mm) | 1.4 | 2.3 | 1.2 | 1.0 | 0.2 | 0.681 |
| Co-A (mm) | 1.5 | 1.7 | 1.0 | 1.3 | 0.5 | 0.228 |
| Co-Gn (mm) | 1.8 | 2.2 | 1.6 | 1.6 | 0.2 | 0.737 |
| Co-Go (mm) | 1.6 | 2.7 | 2.0 | 2.5 | −0.4 | 0.556 |
| Go-Me (mm) | 1.0 | 2.7 | 0.8 | 2.0 | 0.2 | 0.868 |
| SNA (°) | 0.4 | 1.0 | −0.3 | 1.0 | 0.7 | 0.042 |
| SNB (°) | 0.3 | 0.9 | 0.1 | 0.8 | 0.2 | 0.504 |
| SNPog (°) | 0.7 | 0.9 | 0.1 | 0.9 | 0.6 | 0.482 |
| ANB (°) | 0.1 | 0.9 | −0.4 | 0.8 | 0.5 | 0.118 |
| pp to T-FMN (°) | 0.0 | 1.0 | 0.1 | 1.8 | −0.1 | 0.880 |
| ml to T-FMN (°) | −0.7 | 1.5 | −0.8 | 1.7 | 0.1 | 0.740 |
| Co-Go-Me (°) | −0.5 | 1.9 | −0.6 | 1.6 | 0.1 | 0.875 |
| Dental measures | ||||||
| Overjet (mm) | 0.7 | 1.0 | −0.5 | 1.2 | 1.2 | 0.000 |
| Overbite (mm) | 1.4 | 1.2 | 0.0 | 0.7 | 1.4 | 0.000 |
| ms hor (mm) | 2.1 | 2.5 | 0.8 | 1.7 | 1.3 | 0.055 |
| ms ver (mm) | 1.5 | 1.6 | 0.9 | 1.0 | 0.6 | 0.077 |
| Upper molar tipping (°) | 4.4 | 4.5 | 1.7 | 3.6 | 2.7 | 0.028 |
| mi hor (mm) | 0.4 | 1.7 | 0.9 | 1.6 | −0.5 | 0.342 |
| mi ver (mm) | 0.8 | 1.8 | 0.6 | 1.0 | 0.2 | 0.774 |
| is hor (mm) | 0.6 | 1.8 | 0.2 | 1.6 | 0.4 | 0.418 |
| is ver (mm) | 1.2 | 1.6 | 0.5 | 1.0 | 0.7 | 0.110 |
| ii hor (mm) | −0.1 | 1.5 | 0.7 | 1.4 | −0.8 | 0.075 |
| ii ver (mm) | −0.2 | 1.9 | 0.5 | 0.8 | −0.7 | 0.192 |
| Upper incisor inclination (°) | −0.6 | 3.3 | −1.0 | 2.6 | 0.4 | 0.666 |
| Lower incisor inclination (°) | −3.2 | 3.9 | −0.6 | 2.5 | −2.6 | 0.013 |