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Root shape (curvature) of mandibular first premolars.
| Root shape | Women | Men | Total |
|---|---|---|---|
| count (%) | count (%) | ||
| Straight | 50 (74.6) | 35 (67.3) | 85 (71.4) |
| Distal curve | 7 (10.4) | 5 (9.6) | 12 (10.1) |
| Distolingual curve | 2 (3.0) | 5 (9.6) | 7 (5.9) |
| Lingual curve | 2 (3.0) | 4 (7.7) | 6 (5.0) |
| Mesial curve | 4 (6.0) | 0 (0.0) | 4 (3.4) |
| Distobuccal curve | 1 (1.5) | 1 (1.9) | 2 (1.7) |
| Mesiobuccal curve | 1 (1.5) | 1 (1.9) | 2 (1.7) |
| Buccal curve | 0 (0.0) | 1 (1.9) | 1 (0.8) |
|
| |||
| Total | 67 | 52 | 119 |
