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KMID : 0362120130350010043
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Journal of Technologic Dentistry
2013 Volume.35 No. 1 p.43 ~ p.48
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The study of Shear Bond Strength on recasting of non-beryllium non-precious alloy for Porcelain between Metal
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Kim So-Ri
Kim Woong-Chul
Kim Hae-Young
Kim Ji-Hwan
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Abstract
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Purpose: This study aimed to investigate the shear bond strength for non-precious alloy castings without beryllium, which has been used repeatedly for economical reason.
Methods: The Schmitz-Schulmeyer test method was used to evaluate the shear bond strength between the nonberyllium Ni-Cr alloy Vera Bond 2V(AlbaDent, Inc. USA) and the Ceramco 3(Dentstply, York, PA, USA) porcelain powder. The maximum loading and shear bond strength were measured. The average shear strength( ) was analyzed with the one-way ANOVA and the Tukey’s test( =.05). The fracture specimens were examined using Microscope to determine the failure pattern.
Results: The mean shear bond strengths(SD) in MPa were group A(100% new metal) control 28.72(3.31); group B(50% new + 50% reused) 27.28(1.13); group C(all reused) 26.61(5.47). Microscope examination showed that group A and B specimens presented mixed failure, and group C specimens showed adhesive failure.
Conclusion: In conclusion, forward this non-precious alloy dose not contain beryllium for how should use a more systematic study and for future advanced research is performed giving effect to be considered desirable.
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KEYWORD
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non-precious Alloy, non-beryllium, Recasting, Shear Bond Strength
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