Effect of final temperature and heating rate on the mechanical and optical properties of a zirconia veneering ceramic

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dc.authoridDonmez, Mustafa Borga/0000-0002-3094-7487
dc.authoridColdea, Andrea/0000-0003-3306-3131
dc.authoridStawarczyk, Bogna/0000-0003-1732-3255
dc.authorwosidDonmez, Mustafa Borga/AGY-6155-2022
dc.contributor.authorColdea, Andrea
dc.contributor.authorDonmez, Mustafa Borga
dc.contributor.authorStawarczyk, Bogna
dc.date.accessioned2024-05-19T14:50:20Z
dc.date.available2024-05-19T14:50:20Z
dc.date.issued2024
dc.departmentİstinye Üniversitesien_US
dc.description.abstractPurpose: To evaluate the effect of firing temperature and heating rate on the volumetric shrinkage, translucency, flexural strength, hardness, and fracture toughness of a zirconia veneering ceramic.Material and methods: Zirconia veneering ceramic specimens (N = 45) with varying final temperatures (730 degrees C, 750 degrees C, and 770 degrees C) and heating rates (70 degrees C/min, 55 degrees C/min, and 40 degrees C/min) were fabricated (n = 5). Each specimen's shrinkage, translucency, flexural strength, hardness, and fracture toughness were determined. Two-way analysis of variance, Scheff & eacute; test, and Pearson's correlation analysis were used to evaluate data (alpha = 0.05).Results: The shrinkage (44.9 +/- 3.1-47.5 +/- 1.6 vol%) and flexural strength (74.1 +/- 17.4-107.0 +/- 27.1 MPa) were not affected by tested parameters (P >= 0.288). The interaction between the main factors affected the translucency, hardness, and fracture toughness of the specimens (P <= 0.007). Specimens with 770 degrees C final temperature and 70 degrees C/min heating rate had the lowest (21.8 +/- 3.2 %) translucency (P <= 0.039). The hardness ranged between 4.98 +/- 0.51 GPa (730 degrees C; 70 degrees C/min) and 5.60 +/- 0.37 GPa (770 degrees C; 70 degrees C/min). Fracture toughness ranged between 0.54 +/- 0.04 MPa root m and 0.67 +/- 0.08 MPa root m with the highest values for specimens fired at 730 degrees C with 70 degrees C/min (P <= 0.001). There was a positive correlation between translucency and hardness (r = 0.335, P = 0.012), and a negative correlation between fracture toughness and all parameters other than shrinkage (translucency: r = -0.693/P < 0.001, flexural strength: r = -0.258/P = 0.046, hardness: r = -0.457/P < 0.001).Conclusions: Heating rate and final temperature should be considered while fabricating veneered zirconia restorations with tested ceramic as they affected the translucency, hardness, and fracture toughness.en_US
dc.description.sponsorshipBMWKen_US
dc.description.sponsorshipThis work was part of the IGF Project 21734 N, under the project coordination of AiF Projekt GmbH, Berlin, Germany and financially supported by the BMWK.en_US
dc.identifier.doi10.1016/j.jmbbm.2023.106235
dc.identifier.issn1751-6161
dc.identifier.issn1878-0180
dc.identifier.pmid37976995en_US
dc.identifier.scopus2-s2.0-85178501187en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org10.1016/j.jmbbm.2023.106235
dc.identifier.urihttps://hdl.handle.net/20.500.12713/5674
dc.identifier.volume149en_US
dc.identifier.wosWOS:001116057600001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of the Mechanical Behavior of Biomedical Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240519_kaen_US
dc.subjectVeneering Ceramicen_US
dc.subjectFiringen_US
dc.subjectTranslucencyen_US
dc.subjectShrinkageen_US
dc.subjectMechanical Propertiesen_US
dc.titleEffect of final temperature and heating rate on the mechanical and optical properties of a zirconia veneering ceramicen_US
dc.typeArticleen_US

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