Gold crowns are one of the classic types of dental crowns used in dentistry. There are two types of gold crowns used to restore a tooth. The full gold crown is made entirely from gold or gold alloy. A porcelain fused to metal crown (PFM) is made from a combination of gold and porcelain. In regards to the gold, there are three types of alloy used for fabricating gold crowns: High Noble Alloy - Precious Metal - Made from, at a minimum, 60% high noble alloy. This includes gold, platinum and palladium.
Artifact: Analysis Model An object model describing the realization of use cases, and which serves as an abstraction of the Artifact: Design Model. The Analysis Model contains the results of use case analysis, instances of the Artifact: Analysis Class. The Analysis Model is an optional artifact (see Tailoring). UML representation: Model, stereotyped as analysis model.
artifact. 1. any artificial product; a structure or appearance that is not natural, but is due to manipulation. 2. distortion or fuzziness of an image caused by manipulation, such as during compression of a digital file. film artifact artificial images on x-ray films due to storage, handling, or processing. phantom artifact artificial images seen with conventional tomography. standardization artifact an electrical stimulus of 1 mV deliberately introduced into the electrocardiogram so that pulse amplitudes on the tracing can be adjusted to 10 mm.