Table 8 Summary of middle mesial canals (MMCs) results in mandibular first molar
Studies | Whole tooth/ root (N) | Total incidence n (%) | MMCs Configuration type | |||
|---|---|---|---|---|---|---|
Independent | Fin | Confluent | Double MMC | |||
Versiani et al. [22] | MR (48) | 48 (18.6%) | 3 (6.30%) | 4 (8.30%) | 14 (29.20%) with isthmus 26 (54.10%) without isthmus | 1 (2.10%) |
Moe et al. [60] | MR (75) | 14 (18.7%) | 21.4% | 57.1% | 21.4% | Â |
Keleş A, Keskin [26] | MR (85) |  | At CEJ = 5 (5.3%) 1 mm = 0 (0%) 2 mm = 0 (0%)  ≥ 2 mm = 4 (4.3%) Total = 9 (9.6%) | At CEJ = 10 (10.7%) 1 mm = 2 (2.1%) 2 mm = 3 (3.2%)  ≥ 2 mm = 0 (0%) Total = 15 (16.1%) | At CEJ = 57 (61.2%) 1 mm = 3 (3.2%) 2 mm = 6 (6.4%)  ≥ 2 mm = 3 (3.2%) Total = 69 (74.1%) |  |
Keles et al. [24] | MR (30) bifid (30) non-bifid | 20 (66.6%) 10 (33.3%) in bifid 10 (33.3%) in non-bifid | 5 (16.6%) in bifid 2 (6.6%) in non-bifid | 0 cases in both groups | 8 (26.6%) without isthmus in non-bifid 5 (16.6%) without isthmus in bifid | Â |