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Color evaluation of pre-shaded monolithic zirconia restorations on different substrates and resin cements

authorProfile.emailbiblioteca@isel.pt
datacite.subject.fosEngenharia e Tecnologia::Engenharia Mecânica
dc.contributor.authorFonseca, Vanessa
dc.contributor.authorNeves, Cristina Bettencourt
dc.contributor.authorPortugal, Jaime
dc.contributor.authorAnes, Vitor
dc.contributor.authorChasqueira, Filipa
dc.contributor.authorRoque, Joao Carlos
dc.date.accessioned2025-05-21T13:17:40Z
dc.date.available2025-05-21T13:17:40Z
dc.date.issued2025-04-10
dc.description.abstractThis study evaluated if the material, the substrate, and the cement have no influence on the color of pre-shaded monolithic zirconia crowns. The specific effect of the cement over each substrate/brand group was also studied. Two commercial brands of zirconia, Amann Girrbach (AG) and Zirkonzahn (ZZ), were used to produce crowns that were placed over three substrates (natural tooth, zirconia, metal) using two different resin cements (Ivoclar AG (Shaan, Liechtenstein) Neutral and Light) or glycerol (as the control) (n = 10). Lightness (L*), chroma (C*), hue (h*), and color difference (ΔE) of each crown were measured using a VITA Easyshade V® spectrophotometer (VITA Zahnfabrik, Bad Säckingen, Germany), following the standardized reference. Since normality was not verified by the Shapiro–Wilk test, data were statistically analyzed using the Kruskal–Wallis test for group comparisons and Tukey’s post-hoc test for multifactorial variance analysis (α = 0.05). ΔE medians ranged between 1.3 in the AG/zirconia substrate/glycerol group and 8.0 in the ZZ/metal substrate/light cement group. In general, lower values of ΔE were recorded in AG restorations compared to ZZ (p < 0.05), zirconia, and natural tooth substrates compared to metal (p < 0.001) and neutral compared to light cements (p < 0.05). Specifically, over the metal substrate, AG crowns with neutral cement and ZZ crowns with neutral cement and glycerol showed lower ΔE values (p < 0.05). Over the zirconia substrate, light cement presented higher ΔE values than glycerol in both brands but similar to neutral cement. Over the natural tooth, no significant differences were observed between cements (p > 0.05) in the AG brand, while in the ZZ group, light cement showed higher ΔE values (p < 0.05). The final color of the restorations was significantly influenced by the zirconia brand, substrate type, and resin cement. Light cement led to greater color variations, particularly in ZZ restorations. These findings highlight the importance of material selection in achieving esthetically pleasing zirconia restorations.eng
dc.identifier.citationFonseca, V., Neves, C. B., Portugal, J., Anes, V., Chasqueira, F. & Lopes, J. C. (2025). Color evaluation of pre-shaded monolithic zirconia restorations on different substrates and resin cements. Applied Sciences. 15(8), 4160. https://doi.org/10.3390/app15084160
dc.identifier.doihttps://doi.org/10.3390/app15084160
dc.identifier.eissn2076-3417
dc.identifier.urihttp://hdl.handle.net/10400.21/21866
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relation.hasversionhttps://www.mdpi.com/2076-3417/15/8/4160
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/
dc.subjectColor measurement
dc.subjectZirconia
dc.subjectResin cements
dc.subjectSubstrates
dc.titleColor evaluation of pre-shaded monolithic zirconia restorations on different substrates and resin cementseng
dc.typeresearch article
dspace.entity.typePublication
oaire.citation.endPage16
oaire.citation.issue8
oaire.citation.startPage1
oaire.citation.titleApplied Sciences
oaire.citation.volume15
oaire.versionhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43
person.familyNameAnes
person.givenNameVitor
person.identifier.ciencia-id841E-DD98-58C2
person.identifier.orcid0000-0002-8526-398X
person.identifier.ridD-6173-2014
person.identifier.scopus-author-id52463218100
relation.isAuthorOfPublication3d7280bd-c6fb-46bf-ade1-565e2e07a51a
relation.isAuthorOfPublication.latestForDiscovery3d7280bd-c6fb-46bf-ade1-565e2e07a51a

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