I received my DDS, MSc and PhD from the University of Baghdad, Iraq. I have more than twenty years in Academic Teaching as well as Clinical Experience. Currently, I am Associate Professor in Restorative Dentistry Department, Ajman University. I have been privileged to work in both the preclinical and clinical Restorative dentistry courses of both undergraduate and MSc Program. I have involved in preparing and revising many courses in both DDS and Master Program in Restorative Dentistry. I have authored a number of scientific abstracts and articles in the area of interest.
Abstract Background Shaping ability of a file plays an important role during instrumentation in an endodontic treatment. This study aimed to compare the shaping ability of OneShape (OS), Hero Shaper (HS), and Revo-S (RS) instruments in simulated L-shaped canals. Methods Forty-eight simulated L-shaped canals were prepared to an apical size of 25 using OS, HS, and RS (all from Micro-Mega SA, Besançon, France), (n = 16 canals/group) systems. The amount of resin removed after each canal's preparation was measured and compared after producing a composite image made from the superimposition of pre and post-instrumented canals. Canal aberrations and the preparation time were also recorded. The data were statistically analysed by using ANOVA, Tukey, and Chi-square tests. Results One file fractured during instrumentation in the RS group. A significant difference was found at the apical end of the prepared simulated canal between the groups, with RS showing the least amount of resin removal from the inner side of the canals and HS showing the highest amount of resin removal from the outer side (P