Adhesive Properties of a Newly Developed Metal Primer for Dental Alloy.

DOI 3 Citations 13 References

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  • 新規金属接着性プライマーの歯科用合金に対する接着特性

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Abstract

The aim of this study was to evaluate a newly developed metal primer (Kuraray). We investigated how the primer application on the adherent metal surface affected the tensile bond strength between metals and adhesive resin cement before and after thermal cycling between (4°C/60°C), and how the two different application methods affected on the strength measurements. The contact angle of the primer was also measured. Two kinds of dental alloy, i. e., gold alloy and goldsilver-palladium alloy, were used for fabricating the test specimens and the specimens were cemented with Panavia 21 resin cement (Kuraray).<BR>By applying the primer on sandblasted metal surfaces, the bond strengths, regardless of metal type, significantly increased. The bond strengths did not decrease, even after adding 10, 000 times thermal cycling presenting a high level of durability. However, the application on non-sandblasted surfaces resulted in very poor durability. The contact angle analysis likely showed better wet properties of the resin cement to the metal surface on which the primer was applied, but once it was overapplied, it gave rise to a significant decrease in bond strength. In the results, the primer application was effective to increase the bond strength between the resin cement and the metal regardless of metals used, but the primer should always be applied on sandblasted metal surfaces.

Journal

  • Adhesive Dentistry

    Adhesive Dentistry 16 (1), 7-17, 1998

    Japan Society for Adhesive Dentistry

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