Comparative evaluation of extrusion of apical debris in primary anterior teeth using two different rotary systems and hand files: An In Vitro study

• Main Authors: Ahsana Asif, Ganesh Jeevanandan, Lavanya Govindaraju, R Vignesh, E M G. Subramanian
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2019-01-01
• Series: Contemporary Clinical Dentistry
• Subjects: apical extrusion; k-files; kedo-s; protaper
• Online Access: http://www.contempclindent.org/article.asp?issn=0976-237X;year=2019;volume=10;issue=3;spage=512;epage=516;aulast=Asif
• ISSN: 0976-237X; 0976-2361

Background: The success of endodontic treatment depends on the chemomechanical preparation of the tooth. However, the debris produced during canal preparation may extrude through the apical foramen causing postoperative complications. Aim: The aim of this study is to compare the apical debris extrusion during root canal preparation in primary anterior teeth using hand files, rotary ProTaper files, and rotary Kedo-S files. Materials and Methods: Forty-five freshly extracted primary canine with mature apices and a single canal were randomly divided into three groups for instrumentation as follows (n = 15): Group 1: hand files; Group 2: rotary ProTaper files; and Group 3: rotary Kedo-S files. Myers and Montgomery experimental model was used for this study. Apically extruded debris collected in a preweighed Eppendorf tubes was placed in the incubator at 70°C for 5 days. The weight of the debris collected was determined by subtracting the pre- and post-instrumentation weight of the Eppendorf tubes. The data collected were analyzed using the analysis of variance and Tukey's post-hoc tests. Results: Hand files produced more apical debris extrusion than ProTaper and Kedo-S files (P < 0.05) while Kedo-S produced the least (P < 0.05). Conclusion: All instrumentation systems cause apical debris extrusion. Kedo-S produced less apical debris extrusion when compared to the hand files and ProTaper files.