dc.date.accessioned | 2021-08-31T17:11:37Z | |
dc.date.available | 2021-08-31T17:11:37Z | |
dc.date.created | 2021-08-04T10:22:50Z | |
dc.date.issued | 2021 | |
dc.identifier.citation | Øilo, Marit Haugli, Ketil Hegerstrøm Rønold, Hans Jacob Ulsund, Amanda Hembre Ruud, Amund Kvam, Ketil . Pre-cementation procedures' effect on dental zirconias with different yttria content. Dental Materials. 2021 | |
dc.identifier.uri | http://hdl.handle.net/10852/87482 | |
dc.description.abstract | Objectve Several pre-cementation procedures have been advocated to enhance adhesion between zirconia and resin-based cement. There is, however, limited documentation on how these pre-treatments affect the strength of zirconia crowns as most tests are performed on discs or bars. The aim was to assess the effect of pre-cementation procedures on fracture mode, fracture strength and cement retention on zirconia. Methods Two dental zirconia materials with different yttria content were assessed (<4 and>5 mol%). Both discs (n = 45) and crown-shaped specimens (n = 30) of the two materials were pretreated with either air-abrasion or hot-etching with KHF2 and compared with untreated controls with regards to surface roughness, crystallography, wettability, cement adhesion and fracture strength. Results and Significance Air-abrasion improves adhesion and strength of zirconia with moderate yttria content (<4 mol%). Acid etching with heated KHF2 showed the best effect on strength and cement retention on zirconia with higher yttria content (>5 mol%). Application of KHF2 was, however, complicated on crown-shaped specimens. Pre-treatment and cementation protocols should be optimized for different dental zirconias to improve both strength and retention. Keywords Dental ceramics Luting agents Surface modification Fractography Zirconuim dioxide | |
dc.language | EN | |
dc.rights | Attribution 4.0 International | |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.title | Pre-cementation procedures' effect on dental zirconias with different yttria content | |
dc.type | Journal article | |
dc.creator.author | Øilo, Marit | |
dc.creator.author | Haugli, Ketil Hegerstrøm | |
dc.creator.author | Rønold, Hans Jacob | |
dc.creator.author | Ulsund, Amanda Hembre | |
dc.creator.author | Ruud, Amund | |
dc.creator.author | Kvam, Ketil | |
cristin.unitcode | 185,16,0,0 | |
cristin.unitname | Det odontologiske fakultet | |
cristin.ispublished | false | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1923792 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Dental Materials&rft.volume=&rft.spage=&rft.date=2021 | |
dc.identifier.jtitle | Dental Materials | |
dc.identifier.volume | 37 | |
dc.identifier.issue | 9 | |
dc.identifier.startpage | 1425 | |
dc.identifier.endpage | 1436 | |
dc.identifier.doi | https://doi.org/10.1016/j.dental.2021.07.001 | |
dc.identifier.urn | URN:NBN:no-90113 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0109-5641 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/87482/5/1-s2.0-S0109564121002074-main.pdf | |
dc.type.version | PublishedVersion | |