Shaping Ability Of Twisted File, HERO Shaper And Profile .06 Ni-Ti Instruments In Simulated Curved Root Canals
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Aim: To determine the shaping and centering ability of Twisted File (TF), HERO Shaper file and the ProFile .06 in simulated curved root canals. Methodology: Sixty simulated root canals of either 20o, 10 mm radius (n = 30) or 30o, 6 mm radius (n = 30) canal curvatures were prepared with three file systems in a variable tip, modified Crown Down technique. Mean changes on the inner and outer canal walls were analysed for shaping and centering ability of the systems and analysed using ANOVA. Result: There were no significant differences in canal preparations between the 20 and 30 canal curvatures with each system (p > 0.05). All file systems produced well-tapered canal preparations. Overall HERO shaper removed the least canal wall material (p< 0.05), while the other two systems were comparable (p> 0.05). TF showed a better ability to remove inner canal wall material and remain centered in the apical third (p< 0.05), while Profile and HERO transported to the outer wall. Conclusion: All systems produced clinically acceptable canal shapes. TF files showed a better ability to instrument the inner canal wall and remain centered in the apical region. HERO Shaper file was observed to remove the least material in all regions.
© 2013 Love RM, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Dentistry not elsewhere classified