Mechanical properties of new self-adhesive resin-based cement
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- Nakamura Takashi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
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- Wakabayashi Kazumichi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
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- Kinuta Soichiro
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
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- Nishida Hisataka
- Department of Operative Dentistry, Osaka Dental University
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- Miyamae Morihiro
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
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- Yatani Hirofumi
- Department of Fixed Prosthodontics, Osaka University Graduate School of Dentistry
書誌事項
- 公開日
- 2010
- 資源種別
- journal article
- DOI
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- 10.1016/j.jpor.2009.09.004
- 公開者
- 公益社団法人 日本補綴歯科学会
この論文をさがす
説明
Purpose: The aim of this study was to compare the bonding strength, flexural strength, elastic modulus, water absorption and the expansion after water storage of new self-adhesive resin cements to commercially available dental cements.<br>Methods: Two types (hand-mix and auto-mix) of new self-adhesive resin cements (SAC-H and SAC-A, Kuraray Medical), one conventional resin cement (Panavia F2.0), three self-adhesive resin cements (Relyx Unicem, Maxcem and G-Cem), and two resin-modified glass-ionomer cements (Fuji Luting S and Vitremer) were used. Shear bond strengths, flexural strengths and elastic moduli (ISO 4049), water absorption (ISO 4049), and the expansion rate after water storage were investigated.<br>Results: Both SAC-H and SAC-A provided adhesion to enamel and dentin, and had the same bond strength to gold alloy and zirconia as conventional resin cements. SAC-H and SAC-A had greater flexural strengths (86.4–93.5 MPa) than commercial self-adhesive resin cements or glass-ionomer cements. The elastic moduli of self-adhesive and glass-ionomer cements were 5.2–7.4 GPa and 2.3–3.4 GPa, respectively. The water absorption of SAC-H and SAC-A (26.3–27.7 μg/mm3) were significantly lower than commercial self-adhesive resin cements. SAC-H and SAC-A showed significantly lower expansion rates (0.17–0.26%) than commercial self-adhesive cements and glass-ionomer cements after 4 weeks water storage.<br>Conclusions: It is suggested that the new self-adhesive resin cements exhibited a favorable bonding capability and mechanical properties.
収録刊行物
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- Journal of Prosthodontic Research
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Journal of Prosthodontic Research 54 (2), 59-64, 2010
公益社団法人 日本補綴歯科学会