Discuss the Process of Categorizing Casting Metals Used in Dentistry

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The Answer is Dental casting alloys (versus wrought alloys) are alloys used clinically in their as-cast form. In dentistry, casting alloys are categorized in several ways but most often on the basis of noble metal content. The nobility of an alloy is expressed as a sum of the weight percentages of the noble metals in the alloy. For example, if an alloy contains 60% gold, 10% palladium, 5% platinum, and 25% copper, the nobility would be 75% (the sum of gold, palladium, and platinum). Alloys also are described on the basis of their most common metal. For example, an alloy with 75% gold often is described as gold based, or an alloy with 60% nickel may be described as nickel based. The term based indicates which metal is the major component in the alloy and should not be confused with the term base metal. There are three major organizations worldwide. The ADA is the entity of choice in the United States.

Discuss the Process of Categorizing Casting Metals Used in Dentistry

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