The Effect of Hydrofluoric Acid Surface Treatment on the Cyclic Fatigue Resistance of K3 NiTi Instruments

Table 2

Ni and Ti composition in as-received and HF-treated samples in K3 (atomic%).

Weight percent	Ni	Ti
As-received ()	55.07 ± 2.50	44.93 ± 2.50
HF-treated ()	54.14 ± 2.70	45.86 ± 2.70