Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
SSRO: sagittal split ramus osteotomy.
| Period 1 | Period 2 | Period 3 | ||
| Complicated (added) | Le Fort I | 7 | 18 | 14 |
| Le Fort I multisegmented | 13 | 8 | 7 | |
| Segmental osteotomy | 4 | 2 | 4 | |
| Corticotomy | 0 | 0 | 1 | |
| Destruction | 0 | 1 | 0 | |
| SSRO | 0 | 0 | 0 | |
| Simple (canceled) | Le Fort I | 6 | 6 | 11 |
| Le Fort I multisegmented | 11 | 13 | 3 | |
| Segmental osteotomy | 0 | 4 | 5 | |
| Corticotomy | 0 | 0 | 0 | |
| Destruction | 0 | 0 | 0 | |
| SSRO | 1 | 1 | 0 |
