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KMID : 0615219870120010143
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Journal of Kwangju Health
1987 Volume.12 No. 1 p.143 ~ p.149
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A Study of Shear Bond Strength in Porcelain-Non Precious Metal Restorations
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朴龍潤
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Abstract
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The purpose of this study was to evaluate of shear bond strength in two kinds of porcelain fused to non-precious alloy.
The Instron testing machine, operating at a cross-head speed of 0.5㎜/min, was used to break the bond between the porcelain and the Vera-bond metal.
The shear bond strength was computed from the load required to break the bond divided by the porcelain-surface bond area.
The result were as follows :
1. Shear bond strength was obtained through Uni-bond porcelain was fused to Vera-bond metal, showed 12941 psi in push test and 9.099 psi in pull test, respectively.
2. Shear bond strength was obtained through Bio-bond porcelain was fused to Vera-bond metal, showed 13.057 psi in push test and 9469 psi in pull test, respectively.
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