base metal alloy


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base metal alloy

an alloy with a noble metal content less than 25% by weight.

base metal alloy

An alloy that does not contain noble metals such as gold or silver. Stainless steel is the most common base metal alloy used in dentistry.

CAUTION!

Base metal alloys should not be cleaned with sodium hypochlorite solutions.
See also: alloy
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1) Studies conducted by Egoshi et al, (9) showed cement bond strength was found to be high, especially after airborne-particle abrasion to base metal alloys.
21, 22] The base metal alloys mostly indicate a predominance of interface failures, suggesting a weak oxide layer at the metal-ceramic interface.
Two copper and beryllium free, commercially available Ni-Cr (Wiron 99 and Remanium CSe), base metal dental alloys were tested in this study, because base metal alloys containing copper and beryllium are more prone to corrosion [8, 9].
Base metal alloys are generally harder, with higher values of elastic modulus and more resistance to torsional deformation at high temperatures, but they can also be more difficult to cast and pre-weld than gold-palladium or silver-palladium alloys.
Three different Ni-Cr base metal alloys designated for fixed prostheses manufacture were selected for the experiments: Wiron 99: 22.