Improved sealing ability promoted by calcium silicate-based root canal sealers

Abstract

Aim: 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). Methdos: 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 Enterococcus faecalis. 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. Results: The results at the end of the observation time were further analyzed by chi-square testing. 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). Conclusion: In conclusion, calcium-silicate based root canal sealers promoted improved sealing ability when compared to other endodontic sealers.

Comparison of the sealing ability of bioceramic sealer against epoxy resin based sealer: A systematic review & meta-analysis

“…Out of the 24 studies included, eight were from India, 16 , 17 , 21 , 22 , 23 , 24 , 25 , 26 two from Iran, 12 , 27 two from Brazil, 28 , 29 two from Thailand, 30 , 31 one study each from Egypt, 13 Saudi Arabia, 32 Lebanon, 33 Turkey, 14 Austria, 15 China, 34 United Arab Emirates, 35 Germany, 36 and Bulgaria. 37 All the studies were conducted in-vitro with a sample size ranging from 10 to 26.…”

Comparison of apical sealing ability between bioceramic and zinc oxide eugenol-based sealer during root canal treatment, in vitro

“…1 A root canal sealer has the ability to fill the gaps between the gutta-percha and root canal walls, as well as to fill the accessory canals and areas that cannot be reached by the guttapercha itself. 4,5 All kinds of sealers in use so far are available and classified according to their basic materials, one of them is zinc oxide eugenol (ZOE)-based sealer which is the most widely used standard sealers in root canal treatment because of its long history of successful use. [6][7][8][9] Previous studies showed that ZOE-based sealers have mild analgesic properties, minimal dimensional changes, and relatively good adhesion to root canal walls; they are also easy to manipulate and radiopaque.…”