Table 4.

Inter-examiner agreement of the NC as assessed by the three evaluators in the FS, ZS and HZ modes; VC and LAC as assessed by the three evaluators in HZ mode

Evaluator	κ
	FS(NC)	ZS(NC)	HZ(NC)	HZ(VC)	HZ (LAC)
Radiologist vs. Student	0.856	0.964	0.966	0.941	/
Radiologist vs. Endodontist	0.851	0.928	0.935	0.909	/
Student vs. Endodontist	0.930	0.890	0.902	0.845	/

HZ high-resolution zoom scan mode, ZS zoom scan mode, FS full scan mode

NC number of root canals, VC canal configuration classified using Vertucci’s classification, LAC lateral accessory canal