Table 2.
Features of Class II and Class III Subjects
| Variables |
Class II Subjects |
Class III Subjects |
||||
| n |
Mean |
SDa |
n |
Mean |
SDa |
|
| Maxillary surgery | ||||||
| No | 20 | 71 | ||||
| Yes | 94 | 133 | ||||
| Genioplasty | ||||||
| No | 16 | 123 | ||||
| Yes | 98 | 81 | ||||
| Overjet before surgery, mm | 7.7 | 2.4 | −5.8 | 3.8 | ||
| Overbite before surgery, mm | 2.7 | 3.1 | −0.2 | 1.8 | ||
| Amount of surgical repositioning at point A,b mm | ||||||
| Anteroposterior repositioning | −0.2 | 2.1 | 1.4 | 1.9 | ||
| Vertical repositioning | −1.5 | 3.1 | −1.1 | 2.3 | ||
| Amount of surgical repositioning at point B,b mm | ||||||
| Anteroposterior repositioning | 6.0 | 3.9 | −7.3 | 3.8 | ||
| Vertical repositioning | −1.0 | 4.7 | −2.9 | 4.2 | ||
a
SD indicates standard deviation.
b
A positive value indicates forward and downward in the horizontal and vertical directions, respectively; a negative value indicates either posterior direction or superior direction during surgical repositioning.