Case Report
Treatment of Open Bite Based on Skeletal Anchorage Using Extrusion Lever Arms and Class III Elastics
Table 1
Cephalometric measurements before and after the treatment.
| | Parameter | Before treatment | After treatment |
| | SNA (°) | 78.8 | 79.5 | | SNB (°) | 77.7 | 78.1 | | ANB (°) | +1.1 | +1.4 | | AO-BO (mm) | −3.5 | −5.7 | | Cant of occlusal plane (°) | 5.4 | 8.5 | | Maxillary mandibular plane angle (°) | 30.6 | 30.2 | | Bjork sum (°) | 399.9 | 399.5 | | FMA (°) | 29.2 | 28.5 | | FMIA (°) | 56.5 | 67.2 | | IMPA (°) | 94.3 | 84.3 | | U1 to maxillary plane angle (°) | 119.8 | 110.5 | | Li-E (mm) | −4.1 | −3.8 | | Ls-E (mm) | −6.4 | −5.7 |
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