Table 1. Prevalence (%) of 2R2C and 1R2C morphology in the distal root of mandibular first molars.
| Left | Right | Overall | |||||
|---|---|---|---|---|---|---|---|
| Female | Male | Total | Female | Male | Total | ||
| 2R2C | 37 | 49 | 86 (19.91) | 55 | 60 | 115 (26.62) | 201 (23.26) |
| 1R2C | 51 | 65 | 116 (26.85) | 49 | 57 | 106 (24.54) | 222 (25.69) |
| 1R1C | 121 | 109 | 230 (53.24) | 105 | 106 | 211 (48.84) | 441 (51.04) |
| Total | 209 | 223 | 432 (100) | 209 | 223 | 432 (100) | 864 (100) |
Values are presented as number of patients or number of teeth; Values in the parentheses were prevalence in percentage (%).
2R2C, 2 separate distal roots with 1 canal in each root; 1R2C, 1 distal root with 2 separate canals.