Impacto do endovac, easy clean, self-adjusting file e irrigação ultrassônica passiva como ferramentas de irrigação final na remoção de debris

Abstract

This study evaluated the amount of hard-tissue debris accumulation from mandibular mesial root canals after different final irrigation protocols: EndoVac, Easy Clean, Self-Adjusting File (SAF) and passive ultrasonic irrigation (PUI), using micro-computed tomographic imaging (micro-CT). Forty isthmus-containing mesial roots of mandibular molars were anatomically matched based on similar morphological dimensions using micro-CT evaluation (resolution of 14.25 μm), prepared with Reciproc R40 and assigned to 4 experimental groups (n = 10) according to the final irrigation protocol: EndoVac, Easy Clean, SAF and PUI. The specimens were scanned before and after canal preparation, and after each final irrigation protocol. The images obtained from mesial canals, after preparation and after each final irrigation protocol, were examined from the furcation level to the apex to evaluate the percentage volume of hard-tissue debris. One-Way ANOVA post hoc Tukey tests were used to compare groups, with a significance level set at 5%. The results of this study showed that there was a reduction of accumulated hard-tissue debris in all groups after the final irrigation protocol; however, significant differences were not observed (p > 0.05) between groups. Thus, it can be concluded that despite tested irrigation protocols have diminished the percentage volume of debris, none of them were able to render mesial root canals free of hard-tissue debris.