Comparing the Incidence of Dental Defects in Oval Root Canals Prepared with Two Distinct Endodontic Rotary Files: An In Vitro Study

Abstract

Objective: The purpose of this work is to compare the incidence of dentinal defects in oval root canals with two different file systems and examine and contrast the creation of dentinal cracks using a scanning electron microscope (SEM) and a stereomicroscope during the root canal preparation process. Material and Method: Three groups of 15 were created from the sixty extracted human mandibular premolars: two were experimental and one was control. The experimental groups underwent root canal therapy. Group I the control group, did not receive any preparations. Group II is the Waldent walflex file and group III is the Trunatomy (TRN) file. After sectioning the roots at 3, 6, and 9 mm from the apex, the surfaces were examined with a stereomicroscope and SEM. Results: The data were examined using the Chi-square test. There were no fissures in the untreated group. The area between 3mm and 6mm was where the cracks in Waldent Walflex were most evident. There was no statistically significant difference between the experimental groups at either the 6 mm or 9 mm levels (P > 0.05). Conclusion: In conclusion, each rotary file utilized in the testing caused dentinal cracks. Compared to the Trunatomy file group, the Waldent walflex file group has more errors. The apical area of the samples had much more defects than the median and coronal regions.