Optical properties, biaxial flexural strength, and reliability of new-generation lithium disilicate glass-ceramics after thermal cycling

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dc.authoridMustafa Borga Dönmez / 0000-0002-3094-7487en_US
dc.authorscopusidMustafa Borga Dönmez / 57202022054en_US
dc.authorwosidMustafa Borga Dönmez / AGY-6155-2022en_US
dc.contributor.authorTürksayar, Almira Ada Diken
dc.contributor.authorDemirel, Münir
dc.contributor.authorDönmez, Mustafa Borga
dc.date.accessioned2023-02-03T05:32:34Z
dc.date.available2023-02-03T05:32:34Z
dc.date.issued2023en_US
dc.departmentİstinye Üniversitesi, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümüen_US
dc.description.abstractPurposeTo investigate the color stability, translucency, biaxial flexural strength (BFS), and reliability of nano-lithium disilicate and fully crystallized lithium disilicate after thermal cycling and to compare with those of a commonly used lithium disilicate. Materials and methodsThree lithium disilicate glass-ceramics were used to prepare disk-shaped specimens (o:12 mm, thickness: 1.2 mm) from A2 shaded HT blocks (Amber Mill, AM; Initial LiSi Block, IN; IPS e.max CAD, EX). AM and EX specimens were crystallized, and all specimens were polished with a polishing paste (Diamond Polish Mint). A spectrophotometer (CM-26d) was used to measure color coordinates before and after thermal cycling. BFS test was performed after thermal cycling. Color differences (Delta E-00) and relative translucency parameter (RTP) values were calculated. One-way analysis of variance (ANOVA) (Delta E-00 and BFS), two-way ANOVA followed by Tukey's HSD tests (RTP), and chi-square tests (Weibull modulus and characteristic strength) were used for the statistical analyses (alpha = 0.05). ResultsNo significant differences were observed among the Delta E-00 values of tested materials (df = 2, F = 2.933, p = 0.070). RTP values were only affected by material type (p < 0.001) as AM had the highest RTP (p < 0.001), whereas IN and EX had similar values (p >= 0.165). BFS values varied among tested materials (df = 2, F = 21.341, p < 0.001). AM and EX had similar BFS values (p = 0.067) that were higher than that of IN (p <= 0.001). Weibull moduli of the materials were similar (p = 0.305), whereas EX had the highest and IN had the lowest characteristic strength values (p < 0.001) ConclusionsAlthough nano-lithium disilicate had the highest translucency, all materials had imperceptible color and translucency changes after thermal cycling when reported threshold values were considered. Newly introduced lithium disilicate glass-ceramics had adequate flexural strength as compared to the precursor material.en_US
dc.identifier.citationTürksayar, A. A. D., Demirel, M., & Donmez, M. B. (2022). Optical properties, biaxial flexural strength, and reliability of new‐generation lithium disilicate glass‐ceramics after thermal cycling. Journal of prosthodontics.en_US
dc.identifier.doi10.1111/jopr.13632en_US
dc.identifier.issn1059-941Xen_US
dc.identifier.issn1532-849Xen_US
dc.identifier.pmid36585789en_US
dc.identifier.scopus2-s2.0-85146231572en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttp://dx.doi.org/10.1111/jopr.13632
dc.identifier.urihttps://hdl.handle.net/20.500.12713/3855
dc.identifier.wosWOS:000911794900001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.institutionauthorDönmez, Mustafa Borga
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.relation.ispartofJOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBiaxial Flexural Strengthen_US
dc.subjectColor Stabilityen_US
dc.subjectLithium Disilicateen_US
dc.subjectTranslucencyen_US
dc.subjectWeibull Analysisen_US
dc.titleOptical properties, biaxial flexural strength, and reliability of new-generation lithium disilicate glass-ceramics after thermal cyclingen_US
dc.typeArticleen_US

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