Table 4.
Mean and standard deviation of variables related to the initial and final soft tissue profile of individuals submitted to orthodontic treatment with tooth extraction (Group B).
| Cephalometric variables | With tooth extraction (n = 10) (Group B) |
p** | |||||
|---|---|---|---|---|---|---|---|
| Pre-treatment |
Post-treatment |
Change* |
|||||
| Mean | ±SD | Mean | ±SD | ±SD | Mean | ||
| Nasolabial Angle (°) | 102.9 | ±12.5 | 106.4 | ±8.6 | 3.5 | ±9.8 | 0.285 |
| Mentolabial Angle (°) | 117.5 | ±17.6 | 124.8 | ±10.9 | 7.3 | ±8.9 | 0.052 |
| Interlabial Angle (°) | 102.4 | ±27.5 | 124.4 | ±17.2 | 22 | ±16.7 | 0.005*** |
| Facial Convexity Angle (°) | 16.4 | ±2.5 | 16.5 | ±2.2 | 0.2 | ±3.1 | 0.259 |
| Total Facial Convexity Angle (°) | 138.7 | ±4.4 | 138.5 | ±2.3 | −0.2 | ±3.2 | 0.552 |
| Lower Face Angle (°) | 116.7 | ±6.7 | 115.4 | ±9.2 | −1.3 | ±10.9 | 0.574 |
| MAFH/LAFH Proportion | 0.87 | ±0.11 | 0.89 | ±0.10 | 0.01 | ±0.05 | 0.762 |
| Lower Face Vertical Proportion | 0.48 | ±0.04 | 0.46 | ±0.05 | −0.02 | ±0.06 | 0.208 |
| H.NB Angle (°) | 15.3 | ±4.7 | 12.1 | ±3.7 | −3.2 | ±4.1 | 0.035*** |
| Ricketts E Line (mm) | 2.6 | ±3.8 | 2.4 | ±1.3 | −0.2 | ±3.7 | 0.066 |
* Difference between post-treatment and pre-treatment values. ** Wilcoxon or paired Student T test. *** Statistically significant differences (p < 0.05). MAFH = medium anterior facial height. LAFH = lower anterior facial height. SD = standard deviation.