Table 7 Root and canal anatomy distribution in numbers and percentages based on age groups in mandibular anterior teeth (n = 1171).
Teeth | Age group | Variants | Total n (%) | p-value | ||||
|---|---|---|---|---|---|---|---|---|
1TN1 n (%) | 1TN1–2−1 n (%) | 1TN1–2 n (%) | 2TN B1 L1 n (%) | 2TN 1B1 L1 n (%) | ||||
Mandibular central incisors | 10–20 | 6 (75.0) | 2 (25.0) | 0 | 0 | 0 | 8 (100) | 0.524 |
> 20–30 | 112 (74.66) | 38 (25.34) | 0 | 0 | 0 | 150 (100) | ||
> 30–40 | 118 (75.50) | 47 (28.49) | 0 | 0 | 0 | 165 (100) | ||
> 40–50 | 42 (84.0) | 8 (16.0) | 0 | 0 | 0 | 50 (100) | ||
> 50–60 | 16 (94.11) | 1 (5.89) | 0 | 0 | 0 | 17 (100) | ||
> 60–70 | 1 (100) | 0 | 0 | 0 | 0 | 1 (100) | ||
Mandibular Lateral Incisors | 10–20 | 6 (75.0) | 2 (25.0) | 0 | 0 | 0 | 8 (100) | 0.426 |
> 20–30 | 118 (77.63) | 34 (22.37) | 0 | 0 | 0 | 152 (100) | ||
> 30–40 | 132 (77.64) | 38 (22.36) | 0 | 0 | 0 | 170 (100) | ||
> 40–50 | 39 (90.70) | 4 (9.30) | 0 | 0 | 0 | 43 (100) | ||
> 50–60 | 10 (66.66) | 5 (33.34) | 0 | 0 | 0 | 15 (100) | ||
> 60–70 | 1 (100) | 0 | 0 | 0 | 0 | 1 (100) | ||
Mandibular canines | 10–20 | 8 (100) | 0 | 0 | 0 | 0 | 8 (100) | 0.020* |
> 20–30 | 146 (97.99) | 0 | 0 | 0 | 3 (2.01) | 149 (100) | ||
> 30–40 | 165 (97.05) | 2 (1.17) | 2 (1.17) | 0 | 1 (0.59) | 170 (100) | ||
> 40–50 | 48 (94.11) | 0 | 0 | 2 (3.92) | 1 (1.97) | 50 (100) | ||
> 50–60 | 10 (100) | 0 | 0 | 0 | 0 | 10 (100) | ||
> 60–70 | 1 (33.34) | 0 | 2 (66.66) | 0 | 0 | 3 (100) | ||
