Table 3: Pre and post-operative differences in mentolabial angle after orthognathic procedures.
Procedure |
Movement |
Pre op |
Post op |
Difference |
Mand adv |
4mm |
131.5 |
106.9 |
Dec by 24.6 |
Mand adv |
2mm |
133.3 |
119.1 |
Dec by 14.2 |
Mand adv |
2mm |
152.0 |
131.8 |
Dec by 20.7 |
Mand adv |
5mm |
113.3 |
132.6 |
Inc by 19.3 |
Mand adv |
8mm |
100.1 |
131.3 |
Inc by 31.2 |
Mand adv |
4mm |
106.9 |
117.0 |
Inc by 10.1 |
Mand sback |
4mm |
155.2 |
139.9 |
Dec by 15.3 |
Mand sback |
9mm |
138.9 |
130.8 |
Dec by 8.1 |
Mand sback |
4mm |
156.6 |
133.1 |
Dec by 23.5 |
Mand sback |
2mm |
128.9 |
113.5 |
Dec by 15.4 |
Mand – Mandibular, Adv – Advancement, Sback – Setback, Inc – Increase, Dec – Decrease, mm – millimeter, op- operative.