Table 1 Prevalence of C-shaped Canal configuration in mandibular first molars
Investigators | No. of teeth | No. of C-shapes | Prevalence(%) | Gender differnce | Common type | Race | Type of study | Method of study |
|---|---|---|---|---|---|---|---|---|
Martins et al. (2016) [31] | 695 | 4 | 0.6 | Not stated | Not stated | Portuguese | In vivo | CBCT |
Shemesh et al. (2017) [41] | 1229 | 2 | 0.16 | Not stated | Not stated | Israel | In vivo | CBCT |
Alfawaz et al. (2019) [12] | 529 | 1 | 0.19 | Not stated | Not stated | Saudi Arabian | In vivo | CBCT |
Vaz de Azevedo et al. (2019) [34] | 379 | 91 | 24.01 | Female | C1 (89.01%) | Brazilian | In vivo | CBCT |
Hiran et al. (2021) [18] | 256 | 1 | 0.39 | Not stated | Not stated | Thai | In vivo | CBCT |
Nejaim et al. (2020) [19] | 710 | 17 | 2.39 | Female | C1 | Brazilian | Invivo | CBCT |
Kenawi et al. (2022) [15] | 283 | 16 | 5.7 | Not stated | C1 (87.5%) | Saudi Arabian | In vivo | CBCT |
Feghali et al. (2022) [40] | 296 | 3 | 1.01 | Not stated | C1 | Lebanese | In vivo | CBCT |
Chen et al. (2022) [48] | 2000 | 11 | 0.55 | No difference | Not stated | Eastern Chinese | In vivo | CBCT |
Mashyakhy et al. (2020) [20] | 290 | 0 | 0 | Not stated | Not stated | Saudi Arabian | In vivo | CBCT |
Alnowailaty et al. (2022) [16] | 600 | 146 | 24.33 | No difference | C1(coronal) C2(middle) C3(apical) | Saudi Arabian | In vivo | CBCT |
Nouroloyouni et al. (2023) [32] | 248 | 11 | 4.4 | Male | C2 | Iranian | In vivo | CBCT |
Shekarian et al. (2023) [17] | 291 | 5 | 1.7 | Not stated | Not stated | Iranian | In vivo | CBCT |
Alazemi et al. (2023) [14] | 651 | 43 | 6.6 | Females | C3 | Kuwaiti | In vivo | CBCT |
Singh et al. (2024) [33] | 99 | 3 | 6 | Not stated | Not stated | Rohilkhand | In vitro | Dentascan |
Armenta et al. (2024) [13] | 1057 | 2 | 0.2 | Female | C2 | Mexico | In vivo | CBCT |