Table 3. | Differences between preoperative and postoperative cephalometric values and means of differences |
| Preoperative | Postoperative | Mean of difference | ||||
|---|---|---|---|---|---|---|
| Mean | SD | Mean | SD | Mean | SD | |
| SNA | 79.9 | 4.3 | 85.9 | 8.5 | 6 | 3.2 |
| SNB | 74.3 | 4.9 | 78.5 | 5 | 4.2 | 2.2 |
| ANB | 5.6 | 2.9 | 7.4 | 2.1 | 1.8 | 3.8 |
| PAS | 5 | 2.2 | 9.5 | 3.3 | 4.4 | 3.7 |
| MP-H | 28.2 | 5.4 | 29.5 | 5.8 | 1.3 | 2.5 |
| Co-A | 86.9 | 9.9 | 92.2 | 11.3 | 5.2 | 4.5 |
| Co-Pog | 119 | 15 | 126.5 | 14.3 | 9.5 | 8.7 |
SNA = angle between sella, nasion and subspinale point A; SNB = angle between sella, nasion and supramentale point B; ANB = angle between the maxilla and the mandible; PAS = the narrowest distance between the base of the tongue and the posterior pharyngeal wall; MP-H = distance from the mandibular plane to the most anterior point of the hyoid bone); Co-A = amount of the maxillary advancement; Co-Pog = amount of the mandibular advancement; SD = standard deviation. |
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