Methodological proposal for evaluation of adhesion of root canal sealers to gutta‐percha

Aim To compare the bond strength of an epoxy resin‐based sealer and two calcium silicate‐based sealers (CSS) to gutta‐percha discs using a new method. Methodology Round discs of gutta‐percha (n = 60), measuring 10 mm in diameter and 2 mm in thickness, were placed on a glass plate and a drop of each...

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Bibliographic Details
Published in:International endodontic journal 2021-09, Vol.54 (9), p.1653-1658
Main Authors: De‐Deus, Gustavo, Oliveira, Diogo S., Cavalcante, Daniele M., Simões‐Carvalho, Marco, Belladonna, Felipe G., Antunes, Leandro S., Souza, Erick M., Silva, Emmanuel J. N. L., Versiani, Marco A.
Format: Article
Language:English
Subjects:
bond strength
Calcium
Dentistry
endodontic sealer
Endodontics
Epoxy resins
gutta‐percha
microshear test
obturation
Root canals
Sealing compounds
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Summary:Aim To compare the bond strength of an epoxy resin‐based sealer and two calcium silicate‐based sealers (CSS) to gutta‐percha discs using a new method. Methodology Round discs of gutta‐percha (n = 60), measuring 10 mm in diameter and 2 mm in thickness, were placed on a glass plate and a drop of each sealer (AH Plus, EndoSequence BC Sealer and EndoSeal MTA) was placed on their surface. Another identical disc was placed onto the first one and a standardized weight (0.0981 N) applied over them using a specially developed apparatus. Ten samples prepared for each sealer were submitted to a microshear bond strength test accomplished by a specially designed set‐up coupled to a universal testing machine. The Kruskal–Wallis test followed by a post hoc procedure was used to compare groups considering the preliminary analysis of the raw data had indicated the nonadherence to a Gaussian distribution (Shapiro–Wilk, p 
ISSN:0143-2885
1365-2591
DOI:10.1111/iej.13549