Effect of root perforations on the bond strength of fiberglass post using different adhesive systems and resin cement

Authors

  • Cláudio Hideki Kubo
  • Ana Paula Martins Gomes Institute of Science and Technology - UNESP - Univ Estadual Paulista - School of Dentistry - São José dos Campos - SP - Brasil
  • Paloma Grasso Madureira
  • Eduardo Galera da Silva
  • Frederico Canato Martinho
  • Clovis Pagani

DOI:

https://doi.org/10.14295/bds.2013.v16i4.940

Abstract

Objective: This study evaluated the effect of rootperforations on the bond strength of fiberglassposts cemented to the root canal with two adhesivesystems and resin cement. Material and Methods:Forty single-rooted human teeth received endodontictreatment and were prepared for the cementationof fiberglass posts (Exacto Mini, Angelus). Theteeth were divided into four experimental groups(n = 10) according to the root condition (with orwithout perforation) and the adhesive system used:G1: without perforation + Adper Single Bond 2(3M ESPE), G2: without perforation + Clearfil SEBond (Kuraray), G3: with perforation + AdperSingle Bond 2, G4: with perforation + Clearfil SEBond. The perforation was executed on the rootsurface with a diamond bur and sealed with whitemineral trioxide aggregate (MTA). The specimenswere sectioned and a push-out test was carriedout (1 mm/min speed and 50 kgf). The data werestatistically analyzed by ANOVA and Tukey Test(5%). Results: Adper Single Bond 2 promoted thegreatest values of bond strength to the roots withoutroot perforation. The presence of root perforation ledto the reduction in bond strength values regardlessof the bonding system used (p < 0.05). Conclusion:The root perforations caused a direct effect on thebond strength of the fiberglass posts cemented byreducing the bond strength values to the root dentinregardless of the adhesive system used.

Keywords
Adhesion; Cementation; Dental adhesives; Dental cements; Fiberglass pins.

Author Biography

Ana Paula Martins Gomes, Institute of Science and Technology - UNESP - Univ Estadual Paulista - School of Dentistry - São José dos Campos - SP - Brasil

Departamento de Odontologia Restauradora -

Disciplina de Endodontia

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Published

2013-10-01

Issue

Section

Clinical or Laboratorial Research