Table 3 The soft tissue and hyoid changes after orthognathic surgery in thirty skeletal Class III patients

Soft palate length(mm)

33.2 ± 3.2

35.2 ± 4.2

2 ± 3.3

0.003**

Soft palate angle

109.2 ± 7.7

116.2 ± 6.8

7 ± 6.1

0.000***

Soft palate area(mm ² )

246.7 ± 59.7

260.5 ± 57.1

13.8 ± 46.9

0.118

Tongue horizontal length(mm)

58.1 ± 5.4

53.6 ± 5.3

−4.5 ± 3.5

0.000***

Tongue height(mm)

39.5 ± 6.2

43.6 ± 4.8

4.5 ± 3.4

0.000***

Retropalatal tongue area(mm ² )

845.5 ± 321.1

973.1 ± 271.6

127.6 ± 274.1

0.016*

Retroglossal tongue area(mm ² )

1117.5 ± 306

1193.8 ± 264.5

76.3 ± 222

0.070

Horizontal hyoid bone coordinates(mm)

0.4 ± 3.2

−0.4 ± 2.3

−0.8 ± 2.5

0.095

Vertical hyoid bone coordinates(mm)

−83.8 ± 8.6

−82.8 ± 10.2

1.0 ± 4.7

0.259

Sagittal hyoid bone coordinates(mm)

6.2 ± 9.9

5.8 ± 9.1

−0.4 ± 2.9

0.491