Comparative evaluation of push-out bond strength of a MTA-based root canal sealer

  • Eduardo Diogo Gurgel-Filho Universidade de Fortaleza – UNIFOR
  • Felipe Martins Leite Universidade de Fortaleza – UNIFOR
  • Jaírton Benício de Lima Universidade de Fortaleza – UNIFOR
  • João Paulo Chaves Montenegro Universidade de Fortaleza – UNIFOR
  • Flávia Saavedra Universidade Estadual de Campinas – UNICAMP
  • Emmanuel João Nogueira Leal Silva Universidade do Grande Rio - UNIGRANRIO

Abstract

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.

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Author Biographies

Eduardo Diogo Gurgel-Filho, Universidade de Fortaleza – UNIFOR
Universidade de Fortaleza – UNIFOR, School of Dentistry, Department of Endodontics, Fotaleza, CE.
Felipe Martins Leite, Universidade de Fortaleza – UNIFOR
Universidade de Fortaleza – UNIFOR, School of Dentistry, Department of Endodontics, Fotaleza, CE.
Jaírton Benício de Lima, Universidade de Fortaleza – UNIFOR
Universidade de Fortaleza – UNIFOR, School of Dentistry, Department of Endodontics, Fotaleza, CE.
João Paulo Chaves Montenegro, Universidade de Fortaleza – UNIFOR
Universidade de Fortaleza – UNIFOR, School of Dentistry, Department of Endodontics, Fotaleza, CE.
Flávia Saavedra, Universidade Estadual de Campinas – UNICAMP
Universidade Estadual de Campinas – UNICAMP, School of Dentistry, Department of Restorative Dentistry, Piracicaba, SP.
Emmanuel João Nogueira Leal Silva, Universidade do Grande Rio - UNIGRANRIO
Universidade do Grande Rio - UNIGRANRIO, School of Dentistry, Department of Endodontics, Rio de Janeiro, RJ.
Published
2015-10-07
How to Cite
Gurgel-Filho, E. D., Leite, F. M., Lima, J. B. de, Montenegro, J. P. C., Saavedra, F., & Silva, E. J. N. L. (2015). Comparative evaluation of push-out bond strength of a MTA-based root canal sealer. Brazilian Journal of Oral Sciences, 13(2), 114-117. https://doi.org/10.20396/bjos.v13i2.8640903
Section
Article