Case Report
Nonextraction Treatment of Severe Crowding with the Aid of Corticotomy-Assisted Orthodontics
Table 1
Summary of cephalometric measurements.
| | Measurement | Norm | Before treatment | After treatment |
| | SNA (degrees) | 82 | 78 | 78 | | SNB (degrees) | 80 | 75 | 74 | | ANB (degrees) | 2 | 3 | 4 | | Wits appraisal (mm) | 0 | 1 | 1 | | FMA (degrees) | 25 | 36 | 35 | | U1-NA (degrees) | 22 | 22 | 24 | | U1-NA (mm) | 4 | 6 | 7 | | L1-NB (degrees) | 25 | 30 | 31 | | L1-NB (mm) | 4 | 7 | 7 | | IMPA (degrees) | 90 | 94 | 97 | | Nasolabial angle (degrees) | 102 | 98 | 94 | | E-Line-Upper lip (mm) | −4 | −2 | 0 | | E-Line-Lower lip (mm) | −2 | 0 | 2 |
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