Low-gold fixed prosthodontic alloys

Huget, Eugene F.; Vermilyea, Stanley G.; Vilca, Jesus M.

doi:10.1016/0022-3913(82)90103-2

Cited by 6 publications

(3 citation statements)

References 1 publication

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“…Beryllium is added to the alloy for the moulding processes and is present at only 0.52% (w/w). Beryllium is toxic, but the major problem is the inhalation of beryllium fumes and dust [41]. On cell cultures, the first manifestation of toxicity occurred when the alloy contains 3% of beryllium [42].…”

Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of penetration/removal response of endodontic instrument made of single crystal Cu-based SMA: comparison with NiTi SMA instruments

Vincent

Xolin

Gevrey

et al. 2017

Smart Mater. Struct.

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This paper presents an experimental and numerical study showing that single crystal shape memory alloy (SMA) Cu-based endodontic instruments can lead to equivalent mechanical performances compared to NiTi-based instruments besides their interesting biological properties. Following a previous finite element analysis (FEA) of single crystal CuAlBe endodontic instruments (Vincent et al 2015 J. Mater. Eng. Perform. 24 4128–39), prototypes with the determined geometrical parameters were machined and experimentally characterized in continuous rotation during a penetration/removal (P/R) protocol in artificial canals. The obtained mechanical responses were compared to responses of NiTi endodontic files in the same conditions. In addition, FEA was conducted and compared with the experimental results to validate the adopted modeling and to evaluate the local quantities inside the instrument as the stress state and the distribution of volume fraction of martensite. The obtained results highlight that single crystal CuAlBe SMA prototypes show equivalent mechanical responses to its NiTi homologous prototypes in the same P/R experimental conditions.

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Section: Introductionmentioning

confidence: 99%

Experimental and numerical analysis of penetration/removal response of endodontic instrument made of single crystal Cu-based SMA: comparison with NiTi SMA instruments

Vincent

Xolin

Gevrey

et al. 2017

Smart Mater. Struct.

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“…However, the marked increase in the price of gold has led to the development of cheaper alternative alloys such as low gold [1], silver palladium E2,3], nickel-chromium [3], aluminium bronze [4], postizo gold [5], silver-copper [6], silver-coppe~germanium [7] and silver-tin-copper [8]_ It is important to mention that even the alternative alloys referred to above are imported to India, and hence they are expensive. Further, import of these alloys leads to loss of foreign exchange.…”

Section: Introductionmentioning

confidence: 99%

Development of silver-base alloy for crown and bridge prostheses

Patro

Homagain

Singh

et al. 1995

J Mater Sci: Mater Med

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Three silver-base alloys containing varying amounts of tin and copper were prepared by induction melting and centrifugal casting, and their properties were evaluated and compared with those of the type III gold alloy, for their suitability for non-porcelain crown and bridge work in dentistry. Among these the alloy II (Ag-Sn Cu-Zn) was found to possess the best combination of strength and ductility and highest corrosion resistance in artificial saliva. Also its wear resistance was found superior to alloys I and III and was comparable to that of natural tooth. Thus the alloy II was found to be quite a promising indigenous and economic silver-based cast alloy for crown and bridge prostheses.

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“…Huget Vermilyea & Vilca (1982) evaluated the hardness and tensile properties of three low-gold alloys (Midas, Ney Cast Ill, and Minigold) that range in gold content from 40% to 46.5%, silver content from 9.1 % to 46.8%, and copper content from 7.7% to 38.7%. Their results show that all three alloys reach maximum softening when heated at 1 200 °F (649 °C) for 10 minutes, then water quenched, and reach maximum hardness following heat treatment at 800 °F (427 °C) for 10 minutes.…”

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confidence: 99%

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1982

Operative Dentistry

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Low-gold fixed prosthodontic alloys

Cited by 6 publications

References 1 publication

Experimental and numerical analysis of penetration/removal response of endodontic instrument made of single crystal Cu-based SMA: comparison with NiTi SMA instruments

Experimental and numerical analysis of penetration/removal response of endodontic instrument made of single crystal Cu-based SMA: comparison with NiTi SMA instruments

Development of silver-base alloy for crown and bridge prostheses

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