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.

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