Coronal bacterial leakage in root canals filled with single cone technique and different endodontic sealers

Abstract

<p>Objective: To evaluate coronal bacterial leakage comparing five endodontic sealers (AH Plus, Apexit Plus, Copaifera sp oil, EndoREZ and Polifil), and comparing root canals filled with EndoREZ sealer/EndoREZ® Points and EndoREZ sealer/conventional gutta-percha points.</p><p>Material and Methods: 84 human teeth were prepared and filled with gutta-percha points using the single cone technique. Roots were randomly divided into 6 groups: Apexit Plus, AH Plus, Copaifera sp oil, Polifil, EndoREZ, and EndoREZ/EndoREZ Points. After setting time, the roots were incorporated in a leakage model, which upper chamber contained a suspension of <em>Streptococcus mutans</em>, and lower chamber a broth. Leakage was assessed for turbidity in lower chamber for 60 days. Statistic analysis was performed using the nonparametric Kaplan-Meier method (p<0.05).</p><p>Results: All experimental groups presented leakage during the study’s period. The medium time of leakage was: Apexit Plus and AH Plus 6,3 days, Polifil 5,1 days, Copaifera 1,2 days, and both EndoREZ groups infiltrated in the first day.</p><p>Conclusions: There was no statistically significant difference between the sealers Apexit Plus, AH Plus and Polifil, but they prevented leakage better than Copaifera sp oil and both EndoREZ groups. However, none of the tested sealers was capable of resisting coronal bacterial leakage for more than 22 days.</p>

Bacterial leakage analysis of root canal obturated using single cone technique with three different root canal sealers and three different coronal restorative

“…Resin based sealers were more resistant against bacterial microleakage. This could be attributed to flowability and dimensional stability, enhanced adaptation and better sealing ability to dentine walls (8)(9)(10). The results of this study showed that TG sealer which is resin materials was more resistant to bacterial microleakage compared with MTA Fillapex®.…”

“…Resin-based sealers have many merits, as setting in the moisture, insoluble in tissue fluids, adequate setting time and antibacterial properties (8) . Tgadseal is an epoxy matrix resin-based root canal sealer; it is easy to mix with excellent biocompatibility (9) . Mineral Trioxide Aggregate-based root canal has been generally used for treating root perforations, pulp capping, pulpotomy, and retrograde filling.…”