Table 1. Demographic characteristics and occurrence of lingual canal in lower incisors in CBCT scans of the evaluated patients.
| Variable | MD (SD) or ni (%) | |
|---|---|---|
| Female (ni= 211 (61.70)) |
Male (ni= 131 (38.30)) |
|
| Average age (years) | 51.12 ± 14.19 | 52.40 ± 14.47 |
| Age range | ||
| 18 years old 20–29 years old 30–39 years old 40–49 years old 50–59 years old 60–69 years old ≥70 years |
4 (1.90) 15 (7.10) 27 (12.80) 37 (17.55) 66 (31.30) 48 (22.75) 14 (6.60) |
1 (0.76) 5 (3.82) 22 (16.79) 26 (19.85) 31 (23.66) 33 (25.19) 13 (9.92) |
| Total number of teeth evaluated | ||
| Teeth 31 and 32 (left side) Teeth 41 and 42 (right side) |
422 (50.00) 422 (50.00) |
262 (50.00) 262 (50.00) |
| Occurrence of the lingual canal | ||
| No Yes |
145 (68.72) 66 (31.28) |
76 (58.02) 55 (41.98) |
| Location of the lingual canal | ||
| Teeth 31 and 32 (left side) Teeth 41 and 42 (right side) |
32 (48.48) 34 (51.52) |
20 (36.36) 35 (63.64) |
| Lingual canal position | ||
| Straight Mesial Distal |
49 (74.24) 8 (12,12) 9 (13.64) |
40 (72.73) 6 (10.91) 9 (16.36) |
Notes.
MD, Mean; SD, Standard deviation; ni, Absolute frequency; %, Percentage.