Table 2. Comparison of measurements related to bilateral maxillary variables according to the sex category.
| Parametera,b | Sexa | P-valuec | |
|---|---|---|---|
|
Male (♂)
(n = 172) |
Female (♀)
(n = 252) |
||
| Maximum maxillary sinus height (mm) | 39.85 ± 3.87 | 35.27 ± 3.89 | <0.001 |
| Maximum maxillary sinus depth (mm) | 37.59 ± 2.96 | 34.86 ± 3.10 | <0.001 |
| Maximum maxillary sinus width (mm) | 28.98 ± 3.98 | 26.11 ± 4.21 | <0.001 |
| Minimum distance from the sinus floor to the AC (mm) | 5.78 ± 3.44 | 6.08 ± 2.91 | 0.332 |
| Greater width of IOF in the axial plane (mm) | 4.70 ± 0.90 | 4.15 ± 0.94 | <0.001 |
| Greater width of IOF in the sagittal plane (mm) | 4.14 ± 0.83 | 3.54 ± 0.87 | <0.001 |
| Greater width of IOF in the coronal plane (mm) | 3.92 ± 0.68 | 3.56 ± 0.75 | <0.001 |
| Distance from the mid-point of the IOF to the AC (mm) | 30.93 ± 2.95 | 29.73 ± 2.66 | <0.001 |
| Length of GPC in the sagittal plane (mm) | 37.47 ± 3.17 | 35.11 ± 2.93 | <0.001 |
| Anteroposterior width of the GPC in the axial plane (mm) | 6.28 ± 1.30 | 5.31 ± 1.27 | <0.001 |
| Distance from the GPC to the pterygoid hamulus (mm) | 9.68 ± 1.45 | 8.93 ± 1.64 | <0.001 |
| Distance from the GPC to the NPC (mm) | 33.20 ± 3.82 | 32.12 ± 3.00 | 0.001 |
| Distance from the GPC to the PNS (mm) | 15.97 ± 1.16 | 15.22 ± 1.28 | <0.001 |
| Distance from the medial wall of GPF to the MMS (mm) | 13.77 ± 1.44 | 13.45 ± 1.38 | 0.021 |
| Distance from the center of GPF to the AC (mm) | 10.89 ± 2.30 | 9.45 ± 2.33 | <0.001 |
| Angle among the horizontal plane of PB and the GPC (degrees) | 93.83 ± 8.02 | 93.82 ± 10.80 | 0.990 |
Abbreviations: AC, alveolar crest; IOF, infraorbital foramen; GPC, greater palatine canal; PNS, posterior nasal spine; NPC, nasopalatine canal; GPF, greater palatine foramen; MMS, midline maxillary suture; PB, palatine bone
aData based on the sum of right- and left-maxillary posterior sides
bValues are given as mean ± SD
cTwo-sided unpaired t-test