Table 2 Distribution of shapes on CT sagittal sections in normal and cystic maxillary incisive canals
Age group | Cylindrical | Funnel | Spindle | Hourglass | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Male (Normal canals) | Female (Normal canals) | Patients (Cystic canals) | Male (Normal canals) | Female (Normal canals) | Patients (Cystic canals) | Male (Normal canals) | Female (Normal canals) | Patients (Cystic canals) | Male (Normal canals) | Female (Normal canals) | Patients (Cystic canals) | |
20s | 12 | 13 | 1 | 13 | 13 | 1 | 4 | 3 | 1 | 3 | 4 | 5 |
30s | 8 | 9 | 1 | 10 | 8 | 0 | 3 | 4 | 1 | 4 | 2 | 2 |
40s | 5 | 4 | 1 | 4 | 2 | 0 | 4 | 2 | 0 | 3 | 3 | 1 |
50s | 3 | 3 | 3 | 4 | 3 | 0 | 2 | 2 | 1 | 2 | 1 | 4 |
60s | 3 | 3 | 2 | 2 | 3 | 0 | 1 | 1 | 1 | 5 | 2 | 5 |
70s | 3 | 2 | 1 | 3 | 1 | 1 | 2 | 3 | 1 | 3 | 3 | 3 |
80s | 4 | 3 | 1 | 4 | 3 | 0 | 2 | 0 | 0 | 2 | 2 | 3 |
Total | 38 | 37 | 10 | 40 | 33 | 2 | 18 | 15 | 5 | 22 | 17 | 23 |