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Table 7 Prediction of changes in alar base width

From: Influence of maxillary advancement surgery on skeletal and soft-tissue changes in the nose — a retrospective cone-beam computed tomography study

Maxillary advancement

Percentiles for increase in Alb (mm)

5.0 %

10.0 %

50.0 %

90.0 %

95.0 %

2 mm

1.13653

1.26409

1.88730

2.81777

3.13401

3 mm

1.29681

1.44235

2.15346

3.21515

3.57598

4 mm

1.46956

1.63449

2.44031

3.64343

4.05233

5 mm

1.65802

1.84409

2.75326

4.11066

4.57200

6 mm

1.86481

2.07410

3.09666

4.62337

5.14224

7 mm

2.09245

2.32728

3.47467

5.18774

5.76995

8 mm

2.34348

2.60649

3.89153

5.81012

6.46218

9 mm

2.62062

2.91473

4.35173

6.49721

7.22638

10 mm

2.92678

3.25524

4.86013

7.25626

8.07062

  1. Approximate percentiles for Alb relative to maxillary advancement. A advancement of 5mm would lead to a mean widening of the alar base width of 2.8 mm
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Head & Face Medicine

ISSN: 1746-160X

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