Development of artificial L-shaped canals with nickel-titanium rotary files.
Journal Title: Journal of Stomatology (Czasopismo Stomatologiczne) - Year 2017, Vol 70, Issue 3
Abstract
Introduction: The aim of endodontic treatment is removal of pulp and shaping root canal in respect of original anatomy. In order to shorten working time and reduce risk of procedural errors, nickel-titanium rotary files are used in development procedures. The rotary instruments vary in taper, cross-sections of working parts, manufacturing process, direction and extent of rotation during shaping. Aim of study: The purpose of this study was to compare the shaping ability of three rotary instruments in simulated L-curved canals. Material and methods: Thirty resin blocks with simulated L-curved canals were used in this experimental study. The blocks were divided into three groups (10 in each). Canals were prepared to an apical size of 25 according to the recommendations of manufacturer. Pre-operative and post-operative images were superimposed by GIMP 2.6. The amount of material removed from canal walls, apical transportation and changes of working length were measured. Results: The most central preparation was provided by WaveOne Gold as compared to the other systems. The smallest change of the working length was noticed after Hyflex CM instrumentation. The statistical significant differences were detected between ProTaper Universal and Hyflex CM and between ProTaper Universal and WaveOne Gold in terms of change of the working length and apical transportation (p<0.05). Summary: WaveOne Gold Files preserved the original anatomy of L-shaped canals in best way.
Authors and Affiliations
Mateusz Radwański, Michał Łęski, Halina Pawlicka
Keywords
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