Table 2.
Class III Orthognathic Surgery Patients (N = 2466) from January 1, 2004, to December 31, 2015
| Variables |
Frequency |
|
| n |
% |
|
| Sex | ||
| Female | 1203 | 48.8 |
| Male | 1263 | 51.2 |
| Total | 2466 | 100.0 |
| Place of orthodontic treatment performed | ||
| University orthodontists | 1157 | 46.9 |
| Private practice, transfer for the surgery only | 1309 | 53.1 |
| Extraction except third molars | ||
| Non extraction | 1239 | 50.2 |
| Extraction | 1227 | 49.8 |
| Surgery | ||
| One-jaw surgery | 431 | 17.5 |
| Two-jaw surgery | 2055 | 82.5 |
| Maxillary surgery | ||
| None | 405 | 16.4 |
| Le Fort 1 | 2016 | 81.8 |
| Le Fort 2 | 31 | 1.3 |
| Le Fort 3 | 3 | 0.1 |
| Anterior segment osteotomya | 70 | 2.9 |
| Mandibular surgery | ||
| None | 28 | 1.1 |
| Sagittal split ramus osteotomy | 2113 | 85.7 |
| Intraoral vertical ramus osteotomy | 301 | 12.2 |
| Anterior segment osteotomya | 5 | 0.0 |
| Adjunctive surgerya | ||
| Genioplasty | 1227 | 49.8 |
| Paranasal augmentation | 80 | 3.2 |
| Zygoma reduction | 82 | 3.3 |
a
Percentages total more than 100 because of multiple surgical procedures.