Eficácia das diferentes agulhas de irrigação endodôntica: revisão de literatura

Abstract

Irrigation is a fundamental part of a successful endodontic treatment as it fulfills several important mechanical, chemical, and microbiological functions. 14,19 The aim of this study was to evaluate the effectiveness of different types of endodontic irrigation needles during endodontic treatment, to investigate which one promoted the maximum irrigant replacement mainly in the apical region, according to the parameters of size, caliber, design and insertion of the needle, irrigation flow, apical pressure and extrusion risk. A systematic literature review selected 15 articles that compared different types of irrigation needles and excluding articles that compared endodontic irrigation techniques. Thus, open-ended needles perform better in the apical region, but higher apical pressure levels and, consequently, increase the periapical extrusion risk. Vented side needles also promote good apical performance and, despite requiring a depth insertion, exert lower apical pressure values when compared to open-ended needles, making them safer, as they reduce the risk of extrusion.