@article{Melo_Prado_Hirata Junior_Fidel_Silva_Sassone_2018, place={Limeira, SP}, title={Improved sealing ability promoted by calcium silicate-based root canal sealers}, volume={17}, url={https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8652651}, DOI={10.20396/bjos.v17i0.8652651}, abstractNote={<p><strong>Aim: </strong>This study investigated the sealing ability produced by AH Plus (Dentsply DeTrey, Konstaz, Germany), EndoSequence BC sealer (Brasseler USA, Savannah, GA, USA), GuttaFlow (Coltène/Whaledent, Altstätten, France) and MTA Fillapex (Angelus, Londrina, Brazil). <strong>Methdos:</strong> A total of forty-six single-root human canines were prepared and randomly divided into four experimental groups (n=10): MTA Fillapex, EndoSequence BC Sealer, AH Plus or GuttaFlow. Teeth with intact crowns served as negative controls (n=3) and teeth filled with only gutta-percha served as positive controls (n=3). Teeth were mounted in a two-chamber apparatus and exposed to <em>Enterococcus faecalis</em>. The number of days over a 60-days period was recorded for the appearance of turbidity in the lower chamber. Kaplan-Meier method was used to estimate the survival curves. The nonparametric log-rank test was used to compare the survival curves using a significance level of 0.05. <strong>Results:</strong> The results at the end of the observation time were further analyzed by chi-square testing.<strong> </strong>All positive controls leaked within 24 h, whereas none of the negative controls leaked after 60 days. EndoSequence BC Sealer and MTA Fillapex had significant less bacterial leakage (P<0.05) than the other tested sealers. No significant difference between AH Plus and GuttaFlow was observed (P>0.05).<strong> Conclusion: </strong>In conclusion, calcium-silicate based root canal sealers promoted improved sealing ability when compared to other endodontic sealers.<strong></strong></p>}, journal={Brazilian Journal of Oral Sciences}, author={Melo, Tatiana Vieira de and Prado, Marina Carvalho and Hirata Junior, Raphael and Fidel, Sandra Rivera and Silva, Emmanuel João Nogueira Leal da and Sassone, Luciana Moura}, year={2018}, month={Jun.}, pages={e18148} }