INFLUENCE OF THE RECIPOCRANT SYSTEM ON THE FRACTURE RESISTANCE OF ENDODONTIC INSTRUMENTS: LITERATURE REVIEW

Abstract

Endodontics is a dental specialty focused on the treatment of alterations in the dental pulp and periapical tissues. The instrumentation of the root canal system is one of the key factors for clinical success and can be performed using manual files or mechanized systems. With technological advancements, reciprocating systems have emerged, standing out for reducing the risk of instrument fracture, especially in curved canals, where cyclic fatigue is more prevalent. This study aimed to conduct a literature review to evaluate the influence of reciprocating motion on the fracture resistance of endodontic instruments. Studies published in the last five years were analyzed, indicating that reciprocating systems, particularly those manufactured with thermally treated NiTi alloys, demonstrate superior performance in terms of mechanical resistance, flexibility, and clinical safety. It is concluded that the use of these systems represents an effective alternative to conventional instrumentation, providing greater instrument durability and predictability in endodontic treatment.