Long-term effect of ethanol on the bond strength of fiber-glass posts to root dentin

Authors

  • Dimorvan Bordin University of Campinas
  • Yuri Wanderley Cavalcanti University of Campinas
  • Ana Paula Farina University of Passo Fundo
  • Bruno Carlini-Júnior University of Passo Fundo
  • Doglas Cecchin University of Passo Fundo

DOI:

https://doi.org/10.15448/1980-6523.2014.2.12666

Keywords:

Cementation, intracanal retention, root posts, ethanol

Abstract

Objective: To evaluate the long-term effect of ethanol (EtOH) application on the bond strength of adhesive systems used in post luting to root dentin.
Methods: Bovine roots (n=40) had their root channel prepared for post luting and were etched with 37% phosphoric acid (15 s). Specimens were distributed according to adhesive system and EtOH application. Control groups received only the application of adhesives Adper ScothBond Multi-Purpose Plus (ASb), ou Adper Single Bond (SB). Experimental groups received previous EtOH application for 1 minute (EtOH+ASb and EtOH+SB groups). After fiber glass post luting, specimens were stored for 24 h, or 12 months, and later subjected to push-out test (n=5). Data were analyzed by three-way analysis of variance and Tukey test (α<0.05).
Results: The EtOH application did not influence the bond strength values in immediate evaluation (24 h), regardless of the adhesive system used (p>0.05). After 12 months, it was observed significant statistically reduction of adhesive resistance (p<0.05); however the EtOH+SB group did not presented statistical difference between the evaluated storage periods (p>0.05).
Conclusion: EtOH pre-treatment contributes to maintain the long-term bond strength, when water and ethanol-based adhesive system is used.

Author Biographies

Dimorvan Bordin, University of Campinas

Prosthodontic and Periodontology Department, University of Campinas, Piracicaba Dental School, UNICAMP.

Yuri Wanderley Cavalcanti, University of Campinas

Prosthodontic and Periodontology Department, University of Campinas, Piracicaba Dental School, UNICAMP.

Ana Paula Farina, University of Passo Fundo

Department of Restorative Dentistry, Dental School of University of Passo Fundo, UPF.

Bruno Carlini-Júnior, University of Passo Fundo

Department of Restorative Dentistry, Dental School of University of Passo Fundo, UPF.

Doglas Cecchin, University of Passo Fundo

Department of Restorative Dentistry, Dental School of University of Passo Fundo, UPF.

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2015-06-16

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