Influence of mesoporous silica coating treatment on push-out bond strength of zirconia posts

Biomed Mater Eng. 2014;24(6):2187-95. doi: 10.3233/BME-141030.

Abstract

This study aimed to evaluate the influence of mesoporous silica coating surface treatments on push-out bond strength of zirconia posts. Zirconia posts (Cosmopost) were treated with vehicle (control), sandblasting plus silane application (SB+SI), a combination of sandblasting, mesoporous silica coating and silane application (SB+MSC+SI) (n=10/group). Specimens were cemented with RelyX Unicem (3M ESPE, Germany) then horizontally segmented into three sections and subjected to a push-out test. Surface treatments showed significant higher bond strength than the control group, and SB+MSC+SI group presented higher values than SB+SI group (P<0.05). No significant differences were found in bond strength among root regions (P>0.05). We conclude that the combination of mesoporous silica coating and silane application greatly enhance the push-out bond strength of zirconia posts.

Keywords: Zirconia; mesoporous silica coating; posts; push-out; root region.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adhesiveness
  • Cementation / methods
  • Coated Materials, Biocompatible / chemistry*
  • Dental Cements / chemistry*
  • Dental Materials / chemistry
  • Dental Prosthesis Design
  • Dental Stress Analysis
  • Equipment Failure Analysis
  • Friction
  • Humans
  • Porosity
  • Post and Core Technique / instrumentation*
  • Silicon Dioxide / chemistry*
  • Surface Properties
  • Tensile Strength
  • Tooth / physiology*
  • Tooth / surgery*
  • Zirconium / chemistry*

Substances

  • Coated Materials, Biocompatible
  • Dental Cements
  • Dental Materials
  • Silicon Dioxide
  • Zirconium
  • zirconium oxide