Table 7.

A comparison of mean distances from the IOF to the ANS in different populations.

Study	Distance from IOF to ANS (mm)
Cisneiros de Oliveira et al., Brazil [15]	36.0 males, 34.0 females
Ukoha et al., Nigeria [11]	29.01 ± 3.59
Lopes et al., Brazil [12]	34.70 ± 5.63 right side, 35.66 ± 3.91 left side
Ekambaram et al., India [20]	36.30 ± 2.26 right side, 36.00 ± 2.36 left side in males 34.31 ± 2.20 right side, 33.01 ± 2.31 left side in females
Agthong et al., Thailand [6]	34.8 right side, 35.0 left side in males 32.8 right side, 33.1 left side in females
Singh et al., India [24]	36.73 ± 3.11 right side, 36.51 ± 3.23 left side
Present study	34.25 ± 2.24 right side, 34.41 ± 2.00 left side in males 32.41 ± 3.56 right side, 33.34 ± 4.05 left side in females