Table 1. Frequency of procedural errors in canals detected using periapical radiographs and CBCT (Kolmogorov-Smirnov test).

Method	n	Fracture	Canal Transportation	Perforation	P-value
Periapical radiograph	180	7 (3.88%)	4 (2.23%)	0 (0.00%)	P>0.05
CBCT a	180	7 (3.88%)	3 (1.67%)	1 (0.56%)	P>0.05

a. Cone beam computed tomography