Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
Vol. 13, No. 2, 2014, pp. 114-117
Bioline Code: os14022
Full paper language: English
Document type: Research Article
Document available free of charge
Brazilian Journal of Oral Sciences, Vol. 13, No. 2, 2014, pp. 114-117
© Copyright 2014 - Brazilian Journal of Oral Sciences
Comparative evaluation of push-out bond strength of a MTA-based root canal sealer|
Gurgel-Filho, Eduardo Diogo; Leite, Felipe Martins; de Lima, Jaírton Benício; Montenegro, João Paulo Chaves; Saavedra, Flávia & Silva, Emmanuel João Nogueira Leal
Aim: To evaluate the bond strength to root dentin of three root canal sealers: a mineral trioxide
aggregate (MTA)-based sealer (MTA Fillapex®), an epoxy resin-based sealer (AH Plus®), and
a zinc oxide eugenol-based sealer (EndoFill®). Methods: Thirty extracted single-root human
teeth of similar sizes and circular canals were prepared using #3 and #2 Gates Glidden drills in
the cervical portion of the canal and K3® rotary instruments to a size #25/0.06 to working length.
Irrigation with 0.5 mL 2% chlorhexidine gel was used before and 1 mL saline after each instrument.
The smear layer was removed with 3 mL 17% EDTA for 3 min. The samples were sectioned
horizontally into eight 1±0.1 mm-thick serial slices and then the push-out test was carried out.
Two-way analysis of variance (ANOVA) and the post-hoc Tukey test were used for the analysis
of the data with a significance level of 5%. Results: AH Plus presented significantly higher bond
strengths (p<0.05) than the other sealers, while MTA Fillapex showed the lowest bond strengths
(p<0.05). Conclusions: The present study concluded that EndoFill® sealer and MTA FillApex®
core combination were not superior to AH Plus® sealer and gutta-percha core combination.
endodontics; root canal obturation; root canal filling materials
Alternative site location: http://www.fop.unicamp.br/brjorals