Shear bond strength between resin and zirconia with two different silane blends

Acta Odontol Scand. 2012 Sep;70(5):405-13. doi: 10.3109/00016357.2011.630014. Epub 2012 Mar 9.


Objective: To study in vitro the effect of two cross-linking silanes, bis-1,2-(triethoxysilyl)ethane and bis[3-(trimethoxysilyl)propyl]amine, blended with an organofunctional silane coupling agent, (3-acryloxypropyl)trimethoxysilane, on the shear bond strength between resin-composite cement and silicatized zirconia after dry storage and thermocycling.

Materials and methods: Six tested groups of 90 samples of yttria stabilized zirconia were used for sample preparation. The surfaces of the zirconia were silica-coated. 3M ESPE Sil silane was used as a control. Solutions of (3-acryloxypropyl)trimethoxysilane with cross-linking silanes bis-1,2-(triethoxysilyl)ethane and bis[3-(trimethoxysilyl)propyl]amine were applied onto the surface of silicatized zirconia. 3M ESPE RelyX resin-composite cement was bonded onto the silicatized and silanized zirconia surface and light-cured. Three groups were tested under dry condition and the other three groups were tested for thermocycling. The shear bond strength was measured using a materials testing instrument. Group mean shear bond strengths were analysed by ANOVA at a significant level of p < 0.05. The zirconia surface composition was analysed by X-ray Photoelectron Spectroscopy.

Results: The highest shear bond strength was 11.8 ± 3.5 MPa for (3-acryloxypropyl)trimethoxysilane blended with bis-1,2-(triethoxysilyl)ethane (dry storage). There was a significant difference between mean shear bond strength values for (3-acryloxypropyl)trimethoxysilane blended with two cross-linking silanes, bis-1,2-(triethoxysilyl)ethane and bis[3-(trimethoxysilyl)propyl]amine, after thermocycling (p < 3.9 × 10(-8)). Various surface treatments of zirconia influenced the surface roughness (p < 4.6 × 10(-6)). The chemical composition analysis showed there was an increase in silicon and oxygen content after sandblasting.

Conclusions: The results suggest that the combination of functional (3-acryloxypropyl)trimethoxysilane with cross-linking bis[3-(trimethoxysilyl)propyl]amine showed superior hydrolytic stability than with bis-1,2-(triethoxysilyl)ethane.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adhesiveness
  • Composite Resins / chemistry*
  • Cross-Linking Reagents / chemistry
  • Dental Bonding*
  • Dental Etching / methods
  • Dental Materials / chemistry*
  • Dental Polishing / methods
  • Dental Stress Analysis / instrumentation
  • Humans
  • Materials Testing
  • Methacrylates / chemistry
  • Organosilicon Compounds / chemistry
  • Photoelectron Spectroscopy
  • Propylamines / chemistry
  • Resin Cements / chemistry*
  • Shear Strength
  • Silanes / chemistry*
  • Silicon Dioxide / chemistry
  • Stress, Mechanical
  • Surface Properties
  • Temperature
  • Time Factors
  • Yttrium / chemistry
  • Zirconium / chemistry*


  • Composite Resins
  • Cross-Linking Reagents
  • Dental Materials
  • Methacrylates
  • Organosilicon Compounds
  • Propylamines
  • Rely X Unicem
  • Resin Cements
  • Silanes
  • yttria stabilized tetragonal zirconia
  • methacryloxypropyltrimethoxysilane
  • Yttrium
  • Silicon Dioxide
  • 3-(trimethoxysilyl)propylamine
  • Zirconium
  • zirconium oxide