This study | Ueda et al. [27] | Ghaeminia et al. [16] | Tantanapornk-ul et al. [26] | De Melo Albert et al. [28] | Ohman et al. [17] | Monoco et al. [9] | Maegawa et al. [15] | |
---|---|---|---|---|---|---|---|---|
Buccal | 8.9 % | 45.5 % | 17 % | 25 % | 45 % | 31 % | 25 % | 51 % |
Lingual | 11.8 % | 32.4 % | 49 % | 26 % | 48 % | 33 % | 19 % | 26 % |
Between roots | 0.7 % | 0.7 % | 15 % | 4 % | 10 % | 5 % | 4 % | |
Inferior | 78.6 % | 21.4 % | 19 % | 45 % | 7 % | 26 % | 51 % | 19 % |
Number | 136 | 145 | 53 | 142 | 31 | 90 | 73 | 47 |