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Position of the accessory canals from the root apex.
| Distance from the apex | Maxillary canine (n = 250) | Mandibular canine (n = 250) |
|---|---|---|
| <0.5 mm | 4 | 11 |
| 0.5 mm to 1 mm | 16 | 17 |
| 1 mm to 1.5 mm | 6 | 2 |
| 1.5 mm to 2 mm | 4 | 2 |
| Total number of teeth with accessory canals | 30 (12%) | 32 (12.8%) |
| Total number of teeth without accessory canals | 220 (88%) | 218 (87.2%) |
