| Year of study | Country of study | Method of study | N (sides) | Occurrence (%) | Reliability (%) |
---|---|---|---|---|---|---|
Yates et al. [16] | 1976 | USA | Dry mandibles | 140 | 44 | 59 |
Langston & Tebo [31] | 1977 | USA | Dry mandibles | 100 | 100 | - |
Martone et al. [38] | 1993 | USA | Dry mandibles | 63 | 42 | - |
Pogrel et al. [15] | 1995 | USA | Dry mandibles | 40 | 100 | 22.5 |
Aziz et al. [26] | 2007 | USA | Dry mandibles | 36 | 100 | - |
Apinhasmit et al. [22] | 2011 | Thailand | Dry mandibles | 184 | 80.4 | - |
Monazzi et al. [39] | 2012 | Brazil | Dry mandibles | 88 | 65.9 | - |
Park et al. [40] | 2014 | Korea | CT images | 250 | 45.5 | - |
Hosapatna et al. [14] | 2015 | India | Dry mandibles | 100 | 53 | - |
Park et al. [23] | 2018 | Korea | Dry mandibles | 40 | 100 | - |
Zhao et al. [41] | 2019 | China | CT images | 204 | 45 | - |
Hsiao et al. [24] | 2020 | Taiwan | CT images | 180 | 81.10 | - |
Kapur et al. [25] | 2021 | UKa | Dry mandibles | 480 | 100 | 59.15b |
Sinanoglu et al. [42] | 2023 | Turkey | CT images | 228 | 32.02 | - |
Present study | 2024 | Thailand | Dry mandibles | 226 | 92.48 | 86.67 |