Dental Materials
Volume 23, Issue 1 , Pages 81-87, January 2007

Tensile bond strength of dual curing resin-based cements to commercially pure titanium

  • Rafael Schneider

      Affiliations

    • Lutheran University of Brazil, School of Dentistry, Dental Materials Area, Av. Universitària, 95560-00 Torres, RS, Brazil
    • Corresponding Author InformationCorrespondence address: R. Luiz Linck Barcelos 220, CEP 94015-590, Gravatai, RS, Brazil. Tel.: +55 51 30424340; fax: +55 51 6262000.
    • ,
  • Mario Fernando de Goes

      Affiliations

    • Department of Restorative Dentistry, Dental Materials Area, Piracicaba Dental School at Campinas State University, Piracicaba, Brazil
    • ,
  • Guilherme Elias Pessanha Henriques

      Affiliations

    • Department of Periodontics and Prosthodontics, Piracicaba Dental School at Campinas State University, Piracicaba, Brazil
    • ,
  • Daniel C.N. Chan

      Affiliations

    • Department of Oral Rehabilitation, Division of Operative Dentistry, Medical College of Georgia, Augusta, GA, USA

Received 27 July 2005; accepted 5 December 2005.

Abstract 

Objectives

The aim of this study was to evaluate the tensile bond strength of dual curing luting resin cements to commercially pure titanium at 10min and 24h after removal of the oxide layer.

Methods

One hundred and twenty titanium discs were obtained by casting and polishing with silicon carbide papers. The titanium discs were sandblasted with 50μm aluminum oxide, ultrasonic cleaned and bonded in pairs with the resin-based cements Panavia F and Rely X ARC at 10min and 24h after the sandblasting. The tensile test was performed with a crosshead speed of 0.5mm/min in an Instron Universal testing machine.

Results

The Rely X ARC reached the highest tensile strength value at 24h after sandblasting (18.27MPa), but there was no statistically significant difference between the two dual curing resin cements for both times tested. All specimens showed a mixture of cohesive fracture in the resin cement and adhesive failure. However, the predominant failure mode for Panavia F was cohesive in resin cement, and the Rely X ARC exhibited a greater proportion of specimens with adhesive failure between the alloy and resin luting cement at 10min and 24h.

Significance

Both cements had, statistically, the same tensile bond strength. But in the fracture mode analysis, the adhesive predominant fracture mode of Rely X ARC cement indicates a premature clinical adhesive failure. On the other hand, the cohesive predominant fracture mode of Panavia F indicates a longer clinical adhesive bond with titanium.

Keywords: Titanium, Adhesion, Resin-based cement, Primer

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PII: S0109-5641(05)00362-3

doi:10.1016/j.dental.2005.12.006

Dental Materials
Volume 23, Issue 1 , Pages 81-87, January 2007

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