A comparison of the shaping ability of three nickel-titanium rotary instruments: a micro-computed tomography study via a contrast radiopaque technique in vitro

Table 2 Canal transportation (μm) of the canals after instrumentation at different measurement levels (mean ± SD)

Group (n = 10)	Canal transportation (mm from the apex)
Group (n = 10)	1 mm	2 mm	3 mm	5 mm	7 mm
PTU^†	0.03 ± 0.02	0.04 ± 0.02	0.06 ± 0.02	0.02 ± 0.02	0.03 ± 0.02
Reciproc	0.04 ± 0.02	0.06 ± 0.03	0.06 ± 0.03	0.03 ± 0.02	0.02 ± 0.02
K3XF	0.02 ± 0.01	0.01 ± 0.01*	0.02 ± 0.01*	0.01 ± 0.01	0.02 ± 0.01

^†, ProTaper Universal
* Mean values represented with different superscript letters are significantly different according to the Kruskal-Wallis test (P < .05)

ISSN: 1472-6831