Table 2.

Accuracy of NC as assessed by three evaluators in the FS, ZS and HZ modes

Evaluator	Accuracy			P
	FS	ZS	HZ
Radiologist	91.4%	91.4%	97.1%	0.811 a
Student	90.0%	90.0%	95.7%	0.693 a
Endodontist	90.0%	91.4%	97.1%	0.747 a
p	0.976a	0.811 a	0.978 a

HZ high-resolution zoom scan mode, ZS zoom scan mode, FS full scan mode^,a p > 0.05