Table 8 Root and canal anatomy distribution based on gender in mandibular premolars (n = 675).
Tooth type | 1TN1 n (%) | 1TN1–2−1 n (%) | 1TN1–2 n (%) | 1TN1–2−3 n (%) | 1TN1–2−3−2 n (%) | 2TN B1/L1 n (%) | 2TN 1B1/L1 n (%) | 2TN 1M1/D1–2−1 n (%) | 2TN M1/D1 n (%) | Total n (%) | p-value |
|---|---|---|---|---|---|---|---|---|---|---|---|
Mandibular first premolar (male) | 208 (90.08) | 16 (6.62) | 3 (1.24) | 1 (0.42) | 0 | 2 (0.82) | 2 (0.82) | 0 | 0 | 242 (100) | 0.534 |
Mandibular first premolar (female) | 104 (92.85) | 6 (5.35) | 1 (0.90) | 0 | 0 | 1 (0.90) | 0 | 0 | 0 | 112 (100) | |
Mandibular second premolar (male) | 203 (95.75) | 5 (2.35) | 2 (0.94) | 0 | 0 | 1 (0.48) | 0 | 0 | 1 (0.48) | 202 (100) | 0.452 |
Mandibular second premolar (female) | 103 (94.50) | 2 (1.83) | 0 | 0 | 1 (0.91) | 2 (1.83) | 0 | 1 (0.91) | 0 | 109 (100) | |
Total | 628 (93.31) | 29 (4.30) | 6 (0.89) | 1 (0.14) | 1 (0.14) | 6 (0.80) | 2 (0.29) | 1 (0.14) | 1 (0.14) | 675 (100) |
