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

Tatiana Vieira De Melo,Sandra Rivera Fidel,Marina Carvalho Prado,Luciana Moura Sassone,Emmanuel João Nogueira Leal Da Silva,Raphael Hirata Junior

doi:10.20396/bjos.v17i0.8652651

Tatiana Vieira De Melo, Sandra Rivera Fidel + Show 4 more

Open Access

https://doi.org/10.20396/bjos.v17i0.8652651

Copy DOI

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.

Highlights

The aim of the root canal filling is to create a fluid-tight apical, lateral and coronal seal, perpetuating the state of disinfection obtained after chemomechanical preparation and intracanal medication[1]
60% of the samples of AH Plus and 40% of GuttaFlow group were fully contaminated after 60 days, whereas 10% and 20% of the EndoSequence BC Sealer and mineral trioxide aggregate (MTA) Fillapex groups were fully contaminated, respectively
EndoSequence BC Sealer and MTA Fillapex demonstrated significant lower specimens to become contaminated in comparison with AH Plus and GuttaFlow (P

Summary

Introduction

The aim of the root canal filling is to create a fluid-tight apical, lateral and coronal seal, perpetuating the state of disinfection obtained after chemomechanical preparation and intracanal medication[1]. A new class of root canal sealers, named calcium-silicate-based sealers, has been commercially available These sealers, such as MTA Fillapex (Angelus, Londrina, PR, Brazil) and EndoSequence BC Sealer (Brasseler USA, Savannah, GA, USA), can be regarded as an outgrowth of the mineral trioxide aggregate (MTA)’s clinical and scientific success. This means that the intention is to extrapolate the MTA’s remarkable balance between biological and physical-chemical properties creating a close-to-ideal sealer, but showing proper flow rate to be used with gutta-percha cones and conventional and warm vertical filling techniques. Handling, retreatability and bioactivity are present; the so-called biomineralization process would be able to take place in the critical sealer-dentine interface[2]

Objectives

Methods

Results

Conclusion