Shaping ability of three nickel-titanium rotary instruments in simulated L-shaped canals: OneShape, Hero Shaper, and Revo-S

Table 2 Means of canal width after instrumentation (mm) and standard deviations (SD at the different measurement points after root canal preparation

	Measurement points (mm from the apex)
	0	1	2	3	4	5	6	7	8	9	10
OS
Mean	0.31	0.37	0.42	0.47	0.54	0.59	0.65	0.71	0.76	0.82	0.88
SD	0.04	0.02	0.02	0.03	0.03	0.02	0.02	0.02	0.02	0.02	0.02
HS
Mean	0.34	0.38	0.42	0.49	0.52	0.60	0.66	0.73	0.78	0.83	0.89
SD	0.04	0.04	0.04	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.02
RS
Mean	0.31	0.37	0.43	0.49	0.54	0.59	0.63	0.69	0.74	0.79	0.85
SD	0.03*	0.03	0.03	0.03	0.05	0.04	0.04*	0.04**	0.03***	0.04**	0.03**

ISSN: 1472-6831