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dc.date.accessioned2020-06-06T18:45:16Z
dc.date.available2020-06-06T18:45:16Z
dc.date.created2020-02-04T14:46:54Z
dc.date.issued2020
dc.identifier.citationHaugen, Håvard Jostein Soltvedt, Brandon Michael Nguyen, Peter N Rønold, Hans Jacob Johnsen, Gaute Floer . Discrepancy in alloy composition of imported and non-imported porcelain-fused-to-metal (PFM) crowns produced by Norwegian dental laboratories. Biomaterial Investigations in Dentistry. 2020
dc.identifier.urihttp://hdl.handle.net/10852/76782
dc.description.abstractEven though the use of full ceramic crowns have become a well-established practice in dental clinics compare to the last decade, the use of imported casted porcelain-fused-to-metal (PFMs) crowns is still prevalent. The use of imported PFMs is often economically driven; however, when dentists order PFMs, they do not have capabilities to examine its true alloy content. Therefore, we raise the questions whether cheaper imported PFMs have more discrepancies in alloy content compared to domestically produced PFMs? This study included 62 porcelain-fused-to-metal crowns: 41 produced in Norway and 21 imported. Their alloy-composition was determined non-destructively by EDX and SEM. Imported PFMs demonstrated larger deviations compared with non-imported PFMs. Significant deviation was found in key metallic elements in the different alloys (W, In, Pd, Ag). The detected deviations in key element such as Wolfram and Indium could influence the PFMs service time. These finding may be of international concern.
dc.languageEN
dc.rightsAttribution 4.0 International
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.titleDiscrepancy in alloy composition of imported and non-imported porcelain-fused-to-metal (PFM) crowns produced by Norwegian dental laboratories
dc.typeJournal article
dc.creator.authorHaugen, Håvard Jostein
dc.creator.authorSoltvedt, Brandon Michael
dc.creator.authorNguyen, Peter N
dc.creator.authorRønold, Hans Jacob
dc.creator.authorJohnsen, Gaute Floer
cristin.unitcode185,16,17,62
cristin.unitnameBiomaterialer
cristin.ispublishedtrue
cristin.fulltextpreprint
cristin.qualitycode1
dc.identifier.cristin1790803
dc.identifier.bibliographiccitationinfo:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Biomaterial Investigations in Dentistry&rft.volume=&rft.spage=&rft.date=2020
dc.identifier.jtitleBiomaterial Investigations in Dentistry
dc.identifier.volume7
dc.identifier.issue1
dc.identifier.startpage41
dc.identifier.endpage49
dc.identifier.doihttps://doi.org/10.1080/26415275.2020.1724512
dc.identifier.urnURN:NBN:no-79886
dc.type.documentTidsskriftartikkel
dc.type.peerreviewedPeer reviewed
dc.source.issn2641-5275
dc.identifier.fulltextFulltext https://www.duo.uio.no/bitstream/handle/10852/76782/5/10-1080-26415275-2020-1724512.pdf
dc.type.versionPublishedVersion
dc.relation.projectHDI/AUG203182


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