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Table 1 Patients information

From: Change of the airway space in mandibular prognathism after bimaxillary surgery involving maxillary posterior impaction

Patient no.

Age (years)

Sex

Mx post. impactiona (mm)

Fixed reference point

A-P movement of maxilla (mm)

Mn set back (mm)

Genioplasty (mm)

1

22

M

5

ANS

12

2

23

M

2.5

ANS

11

3

19

M

5

ANS

13

4

20

M

2

ANS

9.5

Reduction, 4

5

21

M

3

ANS

15

Advancement, 4

6

21

M

6

Incisor tip

Advancement, 1

13

Advancement, 6

7

22

M

3

ANS

10

Advancement, 6

8

22

M

4

ANS

10.5

Advancement, 4

9

24

M

3.5

ANS

9

Reduction, 4

10

20

M

5

ANS

9

11

23

M

5

ANS

14.5

12

17

F

2

ANS

5

13

26

F

5

ANS

10

14

19

F

3

ANS

9

Reduction, 4

15

32

F

5

ANS

7.5

16

20

F

3.5

ANS

12

Advancement, 4

17

20

F

5

ANS

8

Advancement, 4

18

19

F

4

ANS

15

Advancement, 4

19

20

F

6

ANS

7

20

18

F

3

ANS

13

Reduction, 4

21

23

F

5

ANS

6.5

22

33

F

5

ANS

5.5

  1. Abbreviations: Mx maxillary, Mn mandibular, Post posterior, ANS anterior nasal spine, A-P anteroposterior
  2. aMaxillary posterior impaction was defined as the upward movement of the posterior nasal spine (PNS) in fixation of reference point