Bond strength between a veneering composite resin and zirconia frameworks with attached mechanical retentive devices
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- MATSUSHIMA Keisuke
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
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- KUBOCHI Kei
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
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- KOMINE Futoshi
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
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- KIMURA Fumiaki
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
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- KOBAYASHI Tatsuro
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
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- MATSUMURA Hideo
- Department of Fixed Prosthodontics, Nihon University School of Dentistry
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抄録
<p>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.</p>
収録刊行物
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- Dental Materials Journal
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Dental Materials Journal 41 (1), 117-125, 2022-01-25
一般社団法人 日本歯科理工学会
