Table 2.

Preoperative radiographs used in the studies

Author	Preoperative radiograph used
Smith [21]	OPG
Xu et al. [22]	OPG + CBCT
Kim et al. [24]	OPG
Neves et al. [33]	MDCT
Nakayama et al. [35]	OPG + CT
Hesagawa et al. [36]	OPG + CT
Ghaminia et al. [43]	OPG + CT
Bhat and Cariappa [44]	Not indicated
Jerjes et al. [47]	OPG
Kjolle et al. [48]	OPG
Guerruani et al. [49]	OPG
Landi et al. [50]	OPG + CT + Periapical
Wang et al. [52]	OPG + CT
Dolanmaz et al. [56]	OPG

OPG = orthopantomography; CT = computed tomography; CBCT = cone-beam computed tomography; MDCT = multi-detector computed tomography.