Figure 1.
Figure 2.
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Figure 5.
Figure 6.
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Figure 8.
List of abbreviations
| Abbreviations | Definition |
|---|---|
| MFT | Myofuncional therapy |
| VHA | Vertical holding appliance |
| TPA | Transpalatal arch |
| CBCT | Cone-beam computed tomography |
Cephalometric measurements
| Measurements | Pre treatment | 3 months | 30 months | Post treatment | 3-year retention | |
|---|---|---|---|---|---|---|
| Anteroposterior | SNA (°) | 78.1 | 78.1 | 78.3 | 78.3 | 76.3 |
| SNB (°) | 76.8 | 78.1 | 78.4 | 77.7 | 78.1 | |
| ANB (°) | 1.4 | 0 | -0.1 | 0.6 | -1.8 | |
| A to N-perp (mm) | -6.72 | -7.7 | -7.2 | -6.9 | -7.4 | |
| Pog to N-perp (mm) | -14.4 | -11.8 | -10.2 | -11.7 | -9.8 | |
| Vertical | SN to palatal plane angle (°) | 4.1 | 4.1 | 2.9 | 2.9 | 2.5 |
| SN to occlusal plane angle (°) | 25.2 | 25.4 | 26.7 | 26.8 | 24.6 | |
| SN-GoMe (°) | 38.5 | 36.4 | 37.4 | 38.5 | 38.4 | |
| Anterior Facial Height (AFH) (mm) | 117 | 113.5 | 119.2 | 122.3 | 128.8 | |
| Posterior Facial Height (PFH) (mm) | 72.1 | 70.8 | 73.9 | 75.2 | 80.4 | |
| Facial height ratio (PFH/ AFH) | 0.62 | 0.62 | 0.62 | 0.61 | 0.62 | |
| Dental | U1 to FH (°) | 114.9 | 114.2 | 115.2 | 106.3 | 113.4 |
| IMPA (°) | 90.6 | 87.3 | 87.3 | 83.7 | 83.6 | |
| Interincisal Angle (°) | 120.9 | 126.3 | 124.8 | 136.3 | 132.8 |