Push-out bond strength of a self-adhesive resin cement used as endodontic sealer
Gurgel-Filho Eduardo Diogo, Lima Felipe Coelho, Saboia Vicente de Paula Aragao, Coutinho-Filho Tauby de Souza, Neves Aline de Almeida, Da Silva Emmanuel Joao Nogueira Leal,
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( Gurgel-Filho Eduardo Diogo ) - University of Fortaleza School of Dentistry Department of Endodontics
( Lima Felipe Coelho ) - Federal University of Ceara School of Dentistry Department of Endodontics
( Saboia Vicente de Paula Aragao ) - Federal University of Ceara School of Dentistry Department of Endodontics
( Coutinho-Filho Tauby de Souza ) - State University of Rio de Janeiro School of Dentistry Department of Endodontics
( Neves Aline de Almeida ) - Grande Rio University School of Dentistry Department of Endodontics
( Da Silva Emmanuel Joao Nogueira Leal ) - Grande Rio University School of Dentistry Department of Endodontics
KMID : 1034420140390040282
Abstract
Objectives: The aim of the present study was to investigate the bond strength of RelyX Unicem (3M) to root canal dentin when used as an endodontic sealer.
Materials and Methods: Samples of 24 single-rooted teeth were prepared with Gates Glidden drills and K3 files. After that, the roots were randomly assigned to three experimental groups (n = 8) according to the filling material, (1) AH Plus (Dentsply De Trey GmbH)/Gutta-Percha cone; (2) Epiphany SE (Pentron)/Resilon cone; (3) RelyX Unicem/Gutta-Percha cone. All roots were filled using a single cone technique associated to vertical condensation. After the filling procedures, each tooth was prepared for a push-out bond strenght test by cutting 1 mm-thick root slices. Loading was performed on a universal testing machine at a speed of 0.5 mm/min. One-way analysis of variance and Tukey test for multiple comparisons were used to compare the results among the experimental groups.
Results: Epiphany SE/Resilon showed significantly lower push-out bond strength than both AH Plus/Gutta-Percha and RelyX Unicem/Gutta-Percha (p < 0.05). There was no significant difference in bond strength between AH Plus/Gutta-Percha and RelyX Unicem/Gutta-Percha (p > 0.05).
Conclusions: Under the present in vitro conditions, bond strength to root dentin promoted by RelyX Unicem was similar to AH Plus. Epiphany SE/Resilon resulted in lower bond strength values when compared to both materials.
키워드
Bond strength; Push out test; Resin-based cement; Root canal filling materials
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