Fabrication trueness and internal fit of different lithium disilicate ceramics according to post-milling firing and material type

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dc.contributor.authorDemirel, M.
dc.contributor.authorDonmez, M.B.
dc.date.accessioned2024-05-19T14:33:45Z
dc.date.available2024-05-19T14:33:45Z
dc.date.issued2024
dc.departmentİstinye Üniversitesien_US
dc.description.abstractObjectives: To evaluate whether post-milling firing and material type affect the fabrication trueness and internal fit of lithium disilicate crowns. Methods: A prefabricated cobalt chromium abutment was digitized to design a mandibular right first molar crown. This design file was used to fabricate crowns from different lithium disilicate ceramics (nano-lithium disilicate (AM), fully crystallized lithium disilicate (IN), advanced lithium disilicate (TS), and lithium disilicate (EX)) (n = 10). Crowns, the abutment, and the crowns when seated on the abutment were digitized by using an intraoral scanner. Fabrication trueness was assessed by using the root mean square method, while the internal fit was evaluated according to the triple scan method. These processes were repeated after the post-milling firing of AM, TS, and EX. Paired samples t-tests were used to analyze the effect of post-milling firing within AM, TS, and EX, while all materials were compared with 1-way analysis of variance and Tukey HSD tests (? = 0.05). Results: Post-milling firing reduced the surface deviations and internal gap of AM and EX (P ? 0.014). AM mostly had higher deviations and internal gaps than other materials (P ? 0.030). Conclusions: Post-milling firing increased the trueness and internal fit of tested nano-lithium disilicate and lithium disilicate ceramics. Nano-lithium disilicate mostly had lower trueness and higher internal gap; however, the maximum meaningful differences among tested materials were small. Therefore, the adjustment duration and clinical fit of tested crowns may be similar. Clinical Significance: Tested lithium disilicate ceramics may be suitable alternatives to one another in terms of fabrication trueness and internal fit, considering the small differences in measured deviations and internal gaps. © 2024 The Author(s)en_US
dc.description.sponsorshipThe authors would like to thank Almira Ada Diken T\\374rksayar for their contributions to the formal analysis of the study.en_US
dc.identifier.doi10.1016/j.jdent.2024.104987
dc.identifier.issn0300-5712
dc.identifier.pmid38580056en_US
dc.identifier.scopus2-s2.0-85189565519en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.jdent.2024.104987
dc.identifier.urihttps://hdl.handle.net/20.500.12713/4328
dc.identifier.volume144en_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherElsevier Ltden_US
dc.relation.ispartofJournal of Dentistryen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectCrystallizationen_US
dc.subjectFabrication Truenessen_US
dc.subjectInternal Fiten_US
dc.subjectLithium Disilicateen_US
dc.subjectMatrix Firingen_US
dc.titleFabrication trueness and internal fit of different lithium disilicate ceramics according to post-milling firing and material typeen_US
dc.typeArticleen_US

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