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Cite as: Rev. Chim.
https://doi.org/10.37358/Rev.Chim.1949

OSIM Nr. R102355
ISSN Online 2668-8212
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Revista de Chimie (Rev. Chim.), Year 2015, Volume 66, Issue 8,





MIHAIL TARCOLEA, VIOLETA HANCU, FLORIN MICULESCU, OANA SMATREA, COSTIN COMAN, RALUCA MONICA COMANEANU, ALINA ORMENISAN
Research on Microstructural and Chemical Inhomogeneity
in Cast Metal Crowns Made of CoCrMoW Alloy

Abstract:

Non-compliance of the technology for making of prosthetics restorations can induce some phenomena appearance which can cause, during the use, failures of the dental materials properties. This study target was the verification of structural and chemical homogeneity in the characteristic parts of the mold for a dental crown made of CoCrMoW alloy. The samples from the metallic crown, gate runner and pouring gate were investigated. The general microstructural aspect is characteristic to a mold metal state and, without a homogenization, the life time of the prosthetic crown could be reduced. The differences between the three characteristic zones prove that just the prosthetic crown, which is the thinner element, has also the most vicious microstructure in the rough cast state. Keywords: CoCrMoW alloy, metallic crown, pouring gate, gate runner


Issue: 2015, Volume 66, Issue 8
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