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Suitability of 3D printed pieces of nanocrystalline zirconia for dental applications

2020-03Journal article Restricted access
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dc.contributor.authorBranco, A. C.
dc.contributor.authorSilva, R.
dc.contributor.authorSantos, T.
dc.contributor.authorJorge, H.
dc.contributor.authorRodrigues, A. R.
dc.contributor.authorFernandes, R.
dc.contributor.authorBandarra, S.
dc.contributor.authorBarahona, I.
dc.contributor.authorMatos, A. P. A.
dc.contributor.authorLorenz, K.
dc.contributor.authorPolido, M.
dc.contributor.authorColaço, R.
dc.contributor.authorSerro, A. P.
dc.contributor.authorFigueiredo-Pina, C. G.
dc.date.accessioned2020-10-22T11:59:21Z
dc.date.available2020-10-22T11:59:21Z
dc.date.issued2020-03
dc.description.abstractObjectives: The main goal of this work is to evaluate the suitability of nanostructured zirconia pieces obtained by robocasting additive manufacturing (AM), for dental applications. Methods: The density, crystalline structure, morphology/porosity, surface roughness, hardness, toughness, wettability and biocompatibility of the produced samples were compared with those of samples obtained by conventional subtractive manufacturing (SM) of a similar commercial zirconia material. Chewing simulation studies were carried out against dental human cusps in artificial saliva. The wear of the material was quantified and the wear mechanisms investigated, as well as the influence of glaze coating. Results: AM samples, that revealed to be biocompatible, are slightly less dense and more porous than SM samples, showing lower hardness, toughness and wettability than SM samples. After chewing tests, no wear was found both on AM and SM samples. However, the dental wear was significantly lower when AM samples were used as counterbody. Concerning the glazed samples, both coated surfaces and dental cusps suffered wear, being the cusps’ wear higher than that found for unglazed samples. More, cusps tested against AM coated samples suffered less wear comparatively to those opposed to SM coated samples. Significance. Overall, the results presented in this paper show that AM processed nanostructured zirconia can be used in dental restorations, with important advantages from the point of view of processing and tribological performance. Moreover, the option for glaze finishing should be carefully considered both in SM and AM processed specimens.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationA.C. Branco, R. Silva, T. Santos, et al. Suitability of 3D printed pieces of nanocrystalline zirconia for dental applications. Dental Materials, 2020 March, 36(3):442-455. DOI 10.1016/j.dental.2020.01.006pt_PT
dc.identifier.doi10.1016/j.dental.2020.01.006pt_PT
dc.identifier.issn0109-5641
dc.identifier.urihttp://hdl.handle.net/10400.26/33757
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationAssociate Laboratory of Energy, Transports and Aeronautics
dc.relationEgas Moniz Interdisciplinary Research Center
dc.relationCentro de Química Estrutural
dc.relation.publisherversionhttps://doi.org/10.1016/j.dental.2020.01.006pt_PT
dc.subject3D printing/additive manufacturingpt_PT
dc.subjectRobocastingpt_PT
dc.subjectDental materialpt_PT
dc.subjectZirconiapt_PT
dc.subjectWearpt_PT
dc.titleSuitability of 3D printed pieces of nanocrystalline zirconia for dental applicationspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleAssociate Laboratory of Energy, Transports and Aeronautics
oaire.awardTitleEgas Moniz Interdisciplinary Research Center
oaire.awardTitleCentro de Química Estrutural
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50022%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04585%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00100%2F2020/PT
oaire.citation.endPage455pt_PT
oaire.citation.startPage442pt_PT
oaire.citation.titleDental Materialspt_PT
oaire.citation.volume36(3)pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.embargofctPolítica de copyright do editorpt_PT
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublicationef366d8f-d653-4fa0-b73c-d0c546865d11
relation.isProjectOfPublicatione74bd138-4d07-4a6d-b12f-ebfed6daf4c1
relation.isProjectOfPublication832833e3-03df-4707-a82e-a6fbf8c8dfc2
relation.isProjectOfPublication.latestForDiscovery832833e3-03df-4707-a82e-a6fbf8c8dfc2

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