TABLE 4.
Cephalometric comparison of 2-jaw versus mandibular surgery in young patients.
| 2-Jaw n=16 |
Mn only n=16 |
|||
|---|---|---|---|---|
| Mean |
S.D. |
Mean |
S.D. |
|
| Presurgery characteristics | ||||
| Overjet (mm) | 6.9 | 2.8 | 8.2 | 2.6 |
| Overbite (mm) | 2.7 | 3.1 | 4.4 | 2.1 |
| Co-Pg (mm) | 113.3 | 7.4 | 113.3 | 9.3 |
| Co-Gn (mm) | 115.5 | 7.1 | 115.1 | 9.6 |
| Mand plane (°) | 40.8 | 11.2 | 34.9 | 9.2 |
| Pal plane (°) | 7.8 | 4.2 | 6.9 | 3.6 |
| Change 1 yr to >5 yrs | ||||
| Overjet (mm) | 1.1 | 1.2 | 0.9 | 1.2 |
| Overbite (mm) | −0.2 | 1.5 | 0.2 | 1.4 |
| Co-Pg (mm) | 0.5 | 2.2 | −0.1 | 2.1 |
| Co-Gn (mm) | 0.4 | 2.0 | 0.2 | 1.6 |
| Mand plane (°) | 0.7 | 2.1 | 0.2 | 2.0 |
| Pal plane (°) | 0.2 | 2.5 | 0.5 | 1.4 |