Table 1 Comparison of tongue measurements between the two groups

Skeletal class I (n = 45)

0.00 ± 0.00

0.09 ± 0.33

0.43 ± 1.32

0.68 ± 1.57

0.89 ± 1.86

0.49 ± 1.23

0.36 ± 0.64

62.37 ± 3.80

1236.75 ± 146.22

Skeletal class II (n = 45)

1.13 ± 1.55

2.35 ± 2.57

4.27 ± 3.38

6.05 ± 3.51

6.55 ± 4.23

6.14 ± 4.26

4.07 ± 3.38

60.69 ± 3.74

1019.62 ± 183.32

t

 − 3.632

 − 4.478

 − 5.833

 − 7.114

 − 7.187

 − 7.639

 − 6.266

1.126

5.567

P

0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

 < 0.001

0.274

 < 0.001