Torsional and Bending Properties of V Taper 2H, ProTaper NEXT, NRT, and One Shape

Table 2

Cross-sectional area and inner core area at 3 mm cross sections from tip of the tested instruments.

Group	Cross-sectional area (μm^2)	Inner core area (μm^2)
OS	90,697	55,992
PTN	101,255	54,321
V2H	110,295	64,774
NRT	135,957	83,905

OS, One Shape; PTN, ProTaper NEXT; V2H, V taper 2H.