Impact of Peracetic Acid on the Dynamic Cyclic Fatigue of Heat-Treated Nickel-Titanium Rotary Endodontic Instrument

Table 4

The means and standard deviations (SD) of the fragmented lengths of the tested files.

File treatment	Fragment lengths in the file groups (mm)
	One Curve	ProTaper Gold	Wave One Gold
Control (no PAA)	2.57 (0.087)	4.06 (1.09)	5.53 (0.64)
0.002 wt.% PAA	2.765 (0.36)	3.68 (0.55)	5.58 (0.12)
0.34 wt.% PAA	2.566 (0.25)	3.92 (1.13)	6.31 (0.41)

A statistically significant difference () in the Mann–Whitney U test.