Table 3.
The nasopalatine canal dimensions in coronal section according to the general, gender, age groups and dental status
| N | IF | MP | SF | ||
|---|---|---|---|---|---|
|
|
|
|
|||
| Mean (SD) | Mean (SD) | Mean (SD) | |||
| General | - | 1000 | 3.36 (1.05) | 3.18 (1.1) | 3.98 (1.24) |
|
| |||||
| Gender | Female | 497 | 3.23 (0.98) | 3.1 (1.05) | 3.9 (1.24) |
|
| |||||
| Male | 503 | 3.5 (1.1) | 3.26 (1.14) | 4.06 (1.25) | |
|
| |||||
| P value | - | 0.000a | 0.04b | 0.011b | |
|
| |||||
| Age groups | Group 1 | 119 | 2.94 (0.98)A | 2.78 (1.06)A | 3.86 (1.24)A |
|
| |||||
| Group 2 | 208 | 3.15 (1)A | 2.87 (0.94)A | 3.76 (1.2)A | |
|
| |||||
| Group 3 | 226 | 3.41 (1.05)B | 3.26 (1.1)B | 4 (1.22)AB | |
|
| |||||
| Group 4 | 291 | 3.46 (0.99)B | 3.36 (1.1)B | 4.1 (1.31)B | |
|
| |||||
| Group 5 | 156 | 3.73 (1.13)B | 3.46 (1.12)B | 4.11 (1.17)B | |
|
| |||||
| P value | - | 0.000c | 0.000c | 0.014d | |
|
| |||||
| Dental status | Group 1 | 818 | 3.29 (1.02)A | 3.11 (1.07)A | 3.94 (1.23) |
|
| |||||
| Group 2 | 47 | 3.53 (1.1)AB | 3.4 (1.16)AB | 4.16 (1.46) | |
|
| |||||
| Group 3 | 48 | 3.48 (1.02)AB | 3.28 (1.1)AB | 3.94 (1.31) | |
|
| |||||
| Group 4 | 87 | 3.92 (1.2)B | 3.65 (1.21)B | 4.27 (1.16) | |
|
| |||||
| P value | - | 0.000c | 0.000c | 0.075 | |
aStatistically significant at level P ≤ 0.01 (independent samples Mann-Whitney U test).
bStatistically significant at level P ≤ 0.05 (independent samples Kruskal-Wallis test).
cStatistically significant at level P ≤ 0.01 (independent samples Kruskal-Wallis test).
dStatistically significant at level P ≤ 0.05 (independent samples Kruskal-Wallis test).
The uppercase superscript indicates statistical differences within column (Dunn-Bonferroni post hoc analysis).
IF = incisive foramen; MP = mid-level point; SF = stenson foramen; SD = standard deviation. LEGEND(2)