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Type of roots (fused/separated) in mandibular premolars according to gender
| Number of teeth | Type of roots | Total type with fused/separated roots | ||||||
|---|---|---|---|---|---|---|---|---|
| First premolar | Second premolar | Chi-square (df) | P value | |||||
| Fused | Separated | Fused | Separated | |||||
| Gender | ||||||||
| Male | 253 | 4 (6.6%) | 29 (47.5%) | 7 (11.5%) | 21 (34.4%) | 0.6867 (3) | 0.867 | 61 (54.5%) |
| Female | 223 | 5 (9.8%) | 26 (51%) | 2 (3.9%) | 18 (35.3%) | 51 (45.6%) | ||
| Total | 476 | 9 (8.0%) | 55 (49.1%) | 9 (8%) | 39 (34.8%) | 112 | ||
