Bond strength between a veneering composite resin and zirconia frameworks with attached mechanical retentive devices

Keisuke Matsushima, Kei Kubochi, Futoshi Komine, Fumiaki Kimura, Tatsuro Kobayashi, Hideo Matsumura

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The effects of mechanical retentive devices and various surface treatments on the shear bond strength between a veneering composite resin and zirconia was investigated. Zirconia disks were classified into three surface-treatment groups: airborne-particle abrasion, overglazing, and overglazing with white alumina particles of three different grain sizes (50, 70, and 105 μm) attached onto zirconia disks (ZR-50, ZR-70, and ZR-105, respectively). They were further divided into four groups (n=44): unprimed, Clearfil Porcelain Bond Activator (CA), Clearfil Photo Bond (CB), and CA+CB. An indirect composite resin was bonded to zirconia specimens. Shear bond strengths were measured. For the ZR-70 and ZR-105 groups, the CB and CA+CB specimens exhibited higher bond strengths than the other two specimens after thermocycling. The ZR-70 and ZR-105 groups achieved micromechanical interlocking, and priming with a phosphate monomer (MDP) yielded stable bond strengths between the composite resin and zirconia with alumina particles attached as retentive devices.

Original languageEnglish
Pages (from-to)117-125
Number of pages9
JournalDental Materials Journal
Volume41
Issue number1
DOIs
Publication statusPublished - 2022

Keywords

  • Bond strength
  • Composite resin
  • Glaze
  • Mechanical device
  • Zirconia

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