Table 5: Analysis of canal curvature effect on apical measurement.

- Curved Canals Straight Canals
IG-File K-NiTi IG-File K-NiTi
Count 18 6 36 12
Percent 85.7 28.6 92,3 30,8
Stand. Error 0.152 0.110
P value 0.000 0.000