Table 2.
Comparison of cephalometric measurements between groups without tooth extraction (Group A) and with tooth extraction (Group B) in pre- and post-treatment stages.
| Cephalometric variables | Pre-treatment measurements |
p* | Post-treatment measurements |
p* | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Without extraction |
With extraction |
Without extraction |
With extraction |
|||||||
| Group A |
Group B |
Group A |
Group B |
|||||||
| Mean | ±SD | Mean | ±SD | Mean | ±SD | Mean | ±SD | |||
| Nasolabial Angle (°) | 95.1 | ±14.1 | 102.9 | ±12.5 | 0.24 | 97.1 | ±11.2 | 106.4 | ±8.6 | 0.05 |
| Mentolabial Angle (°) | 109.1 | ±21.8 | 117.5 | ±17.6 | 0.38 | 117.5 | ±15.5 | 124.8 | ±10.9 | 0.32 |
| Interlabial Angle (°) | 101.3 | ±19.3 | 102.4 | ±27.5 | 0.73 | 112.1 | ±12.3 | 124.4 | ±17.2 | 0.10 |
| Facial Convexity Angle (°) | 13.1 | ±2.5 | 16.4 | ±2.5 | 0.01** | 11.4 | ±2.6 | 16.5 | ±2.2 | 0.0004** |
| Total Facial Convexity Angle (°) | 142.1 | ±4.3 | 138.7 | ±4.4 | 0.11 | 141.9 | ±3.6 | 138.5 | ±2.3 | 0.03** |
| Lower Face Angle (°) | 105.1 | ±33.7 | 116.7 | ±6.7 | 0.51 | 102.8 | ±33.1 | 115.4 | ±9.2 | 0.47 |
| MAFH/LAFH Proportion | 0.93 | ±0.08 | 0.87 | ±0.11 | 0.27 | 0.91 | ±0.09 | 0.89 | ±0.10 | 0.51 |
| Lower Face Vertical Proportion | 0.50 | ±0.07 | 0.48 | ±0.04 | 0.93 | 0.47 | ±0.06 | 0.46 | ±0.05 | 0.76 |
| H.NB Angle (°) | 13.3 | ±4.1 | 15.3 | ±4.7 | 0.30 | 11.4 | ±2.6 | 12.1 | ±3.7 | 0.79 |
| Ricketts E Line (mm) | 0.20 | ±3.5 | 2.6 | ±3.8 | 0.09 | 0.15 | ±2.4 | 2.4 | ±1.3 | 0.01** |
* Mann-Whitney or independent Student T test. ** Statistically significant differences (p < 0.05). MAFH = medium anterior facial height. LAFH = lower anterior facial height. SD = standard deviation.