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Maxillofacial Plastic and Reconstructive Surgery

Table 6 The average skeletal movements of subjects after bimaxillary surgery

From: The structural changes of pharyngeal airway contributing to snoring after orthognathic surgery in skeletal class III patients

Skeletal movement

Snoring group

Non-snoring group

p value

U1 set back (mm)

3.9 ± 1.53

1.8 ± 1.87

0.0121**

U1 up (mm)

2.6 ± 1.93

2.2 ± 1.45

0.665

PDI (mm)

3.8 ± 1.57

3.2 ± 1.05

0.412

B set back (mm)

9.7 ± 3.59

10.3 ± 4.33

0.772

B up (mm)

6.2 ± 2.64

7.6 ± 3.54

0.296

  1. Landmark measurements for surgical skeletal movements. The distances of maxillary and mandibular movements between prior to and after bimaxillary surgery were measured at PNS, U1, and B point.
  2. U1 maxillary first incisor insical edge, B points innermost curvature from chin to alveolar bone junction, PNS posterior nasal spine, PDI posterior differential impaction
  3. ***,**,* represent 1, 5, 10% significance level, respectively
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