Original Article

Clinical Oral Investigations

, Volume 14, Issue 2, pp 187-192

In vitro comparative bond strength of contemporary self-adhesive resin cements to zirconium oxide ceramic with and without air-particle abrasion

  • Markus B. BlatzAffiliated withDepartment of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania Email author 
  • , Jin-Ho PharkAffiliated withDepartment of Comprehensive Care, School of Dental Medicine, Case Western Reserve University
  • , Fusun OzerAffiliated withDepartment of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
  • , Francis K. ManteAffiliated withDepartment of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
  • , Najeed SalehAffiliated withDepartment of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
  • , Michael BerglerAffiliated withDepartment of Preventive and Restorative Sciences, School of Dental Medicine, University of Pennsylvania
  • , Avishai SadanAffiliated withDepartment of Comprehensive Care, School of Dental Medicine, Case Western Reserve University

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Abstract

This study compared shear bond strengths of six self-adhesive resin cements to zirconium oxide ceramic with and without air-particle abrasion. One hundred twenty zirconia samples were air-abraded (group SB; n = 60) or left untreated (group NO). Composite cylinders were bonded to the zirconia samples with either BisCem (BC), Maxcem (MC), G-Cem (GC), RelyX Unicem Clicker (RUC), RelyX Unicem Applicator (RUA), or Clearfil SA Cement (CSA). Shear bond strength was tested after thermocycling, and data were analyzed with analysis of variance and Holm–Sidak pairwise comparisons. Without abrasion, RUA (8.0 MPa), GC (7.9 MPa), and CSA (7.6 MPa) revealed significantly higher bond strengths than the other cements. Air-particle abrasion increased bond strengths for all test cements (p < 0.001). GC (22.4 MPa) and CSA (18.4 MPa) revealed the highest bond strengths in group SB. Bond strengths of self-adhesive resin cements to zirconia were increased by air-particle abrasion. Cements containing adhesive monomers (MDP/4-META) were superior to other compositions.

Keywords

Zirconia ceramic Air abrasion Self-adhesive cements Bond strength