Efficacy of Reciprocating, Rotary Systems and Hand Files in Removing Gutta-percha with Different Obturating Techniques

Abstract

Introduction: Endodontic treatment failures cause periapical bone destruction, pain, swelling and it can lead to loss of the tooth. In order to reduce symptoms, re-establish healthy periapical tissues it is important to carry out an effective technique of filling material removal. Aim of the study: The aim of this work is to do a systemic analysis based on reviewed articles related to the selected topic. Moreover, to compare hand, rotary and reciprocating instruments for a removal of gutta-percha and evaluate obturation methods with gutta-percha that are easiest to remove during endodontic retreatment. Material And Methods: Systematic review was performed based on PRISMA guidelines. PubMed/ Medline, Willey Online Library databases were used for the search of articles. All selected studies were published between January 1, 2011 and January 1, 2021. Results: There were found 331 articles related to the selected topic. After applying inclusion/exclusion criteria 15 publications enrolled in this systematic review. Eleven studies compared rotary, reciprocating systems and hand files, three studies evaluated characteristics of removing gutta-percha obturated with Warm vertical compaction, Cold lateral condensation, Thermafil and GuttaCore methods and one study compared both instruments and obturating techniques. Conclusions: Reciprocating systems required less time to reach working length, removed gutta-percha faster and produced smaller amounts of apically extruded debris compared with rotary systems, hand files. Retreating curved canals in molars Mtwo system removed a significantly greater amount of gutta-percha and required less time for removal compared with Reciproc system. Retreating root canals obturated with GuttaCore required less time for reaching working length and removing filling material.[...].