Depth of cure, mechanical properties and morphology of dual-cure bulk-fill composites

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dc.authoridAyça Sarıalioğlu Güngör / 0000-0002-8779-2949
dc.contributor.authorGüngör Sarıalioğlu, Ayça
dc.contributor.authorDurmuş, Ali
dc.contributor.authorKurt, Belma Zengin
dc.contributor.authorKöymen, Safiye Selin
dc.contributor.authorDönmez, Nazmiye
dc.date.accessioned2022-12-22T13:26:31Z
dc.date.available2022-12-22T13:26:31Z
dc.date.issued2022
dc.departmentFakülteler, Diş Hekimliği Fakültesi, Klinik Bilimler Bölümü
dc.description.abstractThis study evaluated selected structural and physical properties, such as degree of conversion (DC), Vickers hardness (VHN), and compression strength (CS), of three new dual-cure bulk-fill resin-based composites (RBCs; ACTIVA, HyperFIL, and Fill-Up) and compared them to those of a conventional RBC (Filtek Z250) at three clinically relevant depths. Samples (n=180) were prepared in three depths (2,4, and 6mm). Fourier-transform infrared spectroscopy (FTIR) analysis and VHN and CS tests were performed. The DC value was calculated by considering the relative change in the aliphatic C=C peaks. The fractured surfaces of representative samples were characterized using scanning electron microscopy (SEM). Data were statistically evaluated using two-way analysis of variance and post hoc Bonferroni tests (p<0.05). According to the VHN results, Filtek Z250 showed the highest bottom/top hardness ratio (97.94±1.01) at 2mm thickness and ACTIVA showed the lowest bottom/top hardness ratio (43.48±5.64) at 6mm thickness (p<0.001). According to the FTIR results, the DC decreased with increasing thickness in all materials (p<0.05). Filtek Z250 showed the highest (301±12.4 MPa) and ACTIVA exhibited the lowest (232±17.2 MPa) CS values at 2mm thickness (p<0.05). The lowest CS values were obtained for ACTIVA, and the highest values were obtained for Filtek Z250 for samples with thicknesses of 4 and 6mm, respectively (p<0.05). The structural features of restorative composites, such as the resin chemistry and filler type and content, and the operational parameters (i.e., material thickness and curing conditions) strongly affect crosslinking reactions and thus the DC, VHN, and CS values.
dc.identifier.citationSarialioglu Gungor, A., Durmus, A., Zengin Kurt, B., Köymen, S. S., & Dönmez, N. (2022). Depth of Cure, Mechanical Properties and Morphology of Dual-Cure Bulk-Fill Composites. Odovtos - International Journal of Dental Sciences, 295–310. https://doi.org/10.15517/ijds.2022.52970en_US
dc.identifier.doi10.15517/IJDS.2022.52970
dc.identifier.endpage87
dc.identifier.issn1659-1046
dc.identifier.issn2215-3411
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85143730813
dc.identifier.scopusqualityN/A
dc.identifier.startpage72
dc.identifier.urihttp://dx.doi.org/10.15517/IJDS.2022.52970
dc.identifier.urihttps://hdl.handle.net/20.500.12941/100
dc.identifier.volume25
dc.identifier.wosWOS:000906987700008
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorGüngör Sarıalioğlu, Ayça
dc.language.isoen
dc.publisherUniversidad de Costa Rica
dc.relation.ispartofOdovtos - International Journal of Dental Sciences
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectResin composite
dc.subjectFourier-transform infrared spectroscopy
dc.subjectMicrohardness
dc.subjectCompression strength
dc.subjectScanning electron microscopy
dc.subjectDegree of conversion
dc.titleDepth of cure, mechanical properties and morphology of dual-cure bulk-fill composites
dc.title.alternativeProfundidad de curado, propiedades mecánicas y morfología de resinas compuestas duales
dc.typeArticle

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