Table 2 Measurements’ differences of the maximum dimension of IAC (MD), vertical distance (VD), and horizontal position (HP) relationship compared for different anatomical sites

MD

2.99 ± 1.0

3.34 ± 0.78^a

3.50 ± 0.96^ab

3.79 ± 1.06^b

4.43 ± 1.25^ab

VD

9.23 ± 1.84

8.34 ± 1.72 ^cb

7.69 ± 1.85^a

7.87 ± 1.88^a

9.29 ± 2.56^c

HP

%(count)

%(count)

%(count)

%(count)

%(count)

M

40.0 (2)

69.6 (55)

37.0 (68)

15.9 (30)

28.9 (56)

B

0.0 (0)

0.0 (0)

1.00 (2)

0.5 (1)

1.00 (2)

L

60.0 (3)

30.4 (24)

62.0 (114)

83.6 (158)

70.1 (136)