Surgical variable | Mean ± SD | P value | |
---|---|---|---|
Group1 (n = 23) | Group2 (n = 14) | ||
Maxillary posterior impaction (mm)a | – | 4.23 ± 3.14 | – |
Advancement of maxilla (mm)b | – | 0.81 ± 2.11 | – |
Mandibular setback amount (mm)c | 4.85 ± 4.34 | 6.81 ± 5.14 | 0.223 |
Changes of mandibular plane angle (°)d | 3.54 ± 4.56 | 2.17 ± 4.24 | 0.371 |