THE SHAPING ABILITY OF TWO RECIPROCATING FILE SYSTEMS IN L–SHAPED SIMULATED ROOT CANALS

Saeed; MH; Abu–Al Shawareb SA; El Sadek; DA; Al Hadi; DZ

Volume : V, Issue : I, January - 2016

THE SHAPING ABILITY OF TWO RECIPROCATING FILE SYSTEMS IN L–SHAPED SIMULATED ROOT CANALS

Saeed, Mh, Abu Ndash Al Shawareb Sa, El Sadek , Da, Al Hadi , Dz

Abstract :

:The aim of this study is to evaluate the shaping ability of two reciprocating file systems (WaveOne and SafeSiders) in comparison with the hand instrument (K–file) during the preparation of L–shaped simulated root canals. Materials and Methods: Sixty (n=60) endodontic resin training blocks were divided into three groups (n=20) according to the type of file used to prepare the canals (WaveOne, SafeSiders and K–files). Pre and post instrumentation images were recorded and superimposed after preparation, images were analyzed by (AutoCAD 2008). Comparison among the different files was evaluated for the working length change, canal aberration and width measurement assessment (total, inner and outer) at different points in canals: canal orifice, half–way to orifice, beginning of the curve, apex of the curve and apical end. Data were analyzed using one way ANOVA, Tukey HSD, paired T–test, and Fisher‘s Exact test. Results: less working length change was found in WaveOne system with no significant difference between WaveOne and K–files instrumentation systems. SafeSiders and K–files instrumentation systems created significantly more canal aberration than WaveOne instrumentation systems, and in width measurement there was a significant difference between the mean values of total, inner and outer width of material removal among the three systems at all measuring points (orifice, half–way to orifice, beginning of curve, apex of curve and apical end).