Table 3.
Mean and standard deviation of variables related to the initial and final soft tissue profile of individuals submitted to orthodontic treatment without tooth extraction (Group A).
| Cephalometric variables | Without tooth extraction (n = 10) (Group A) |
p** | |||||
|---|---|---|---|---|---|---|---|
| Pre-treatment |
Post-treatment |
Change* |
|||||
| Mean | ±SD | Mean | ±SD | Mean | ±SD | ||
| Nasolabial Angle (°) | 95.1 | ±14.1 | 97.1 | ±11.2 | 2.05 | ±8.20 | 0.507 |
| Mentolabial Angle (°) | 109.1 | ±21.8 | 117.5 | ±15.5 | 18.4 | ±11.9 | 0.059 |
| Interlabial Angle (°) | 101.3 | ±19.3 | 112.1 | ±12.3 | 10.8 | ±14.6 | 0.036*** |
| Facial Convexity Angle (°) | 13.1 | ±2.5 | 11.4 | ±2.6 | −1.7 | ±2.3 | 0.064 |
| Total Facial Convexity Angle (°) | 142.1 | ±4.3 | 141.9 | ±3.6 | −0.2 | ±3.5 | 0.766 |
| Lower Face Angle (°) | 105.1 | ±33.7 | 102.8 | ±33.1 | −2.3 | ±47.8 | 0.171 |
| MAFH/LAFH Proportion | 0.93 | ±0.08 | 0.91 | ±0.09 | −0.02 | ±0.09 | 0.634 |
| Lower Face Vertical Proportion | 0.50 | ±0.07 | 0.47 | ±0.06 | −0.03 | ±0.05 | 0.448 |
| H.NB Angle (°) | 13.3 | ±4.1 | 11.4 | ±2.6 | −1.9 | ±2.01 | 0.020*** |
| Ricketts E Line (mm) | 0.20 | ±3.5 | 0.15 | ±2.4 | −0.05 | ±1.9 | 0.887 |
* 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.