Evaluation of polymerization shrinkage of bulk-fill resin composites using microcomputed tomography

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dc.authorid0000-0002-1652-7670
dc.authorid0000-0002-3468-950X
dc.contributor.authorErsen, Kadriye Aybüke
dc.contributor.authorGürbüz, Özge
dc.contributor.authorÖzcan, Mutlu
dc.date.accessioned2019-12-26T11:22:30Z
dc.date.available2019-12-26T11:22:30Z
dc.date.issued2020
dc.departmentİstanbul Medipol Üniversitesi, Diş Hekimliği Fakültesi, Restoratif Diş Tedavisi Ana Bilim Dalı
dc.description.abstractObjectives This study evaluated the influence of cavity depth on polymerization shrinkage of bulk-fill resin composites with and without adhesive resin. Materials and methods Standardized box-shaped cavities (width, 4 mm; length, 5 mm, depth, 2 mm or 4 mm) were made on occlusal surfaces of extracted human third molars (N = 60). The teeth were assigned to 3 groups to receive bulk-fill resin composites (low-viscosity bulk-fill, SDR; high-viscosity bulk-fill; Filtek Bulk-Fill-FB; and TetricEvo Ceram Bulk-Fill-TB) in the prepared cavities with and without adhesive resin (Clearfil S3 Bond). Each specimen (n = 5 per group) was scanned twice using microcomputed tomography (micro-CT): once after application of the resin composite to the cavity prior to polymerisation and once after polymerisation. The shrinkage of volumetric loss (%) was measured using micro-CT. Data were analysed using Kruskal-Wallis and Mann-Whitney U tests (alpha = 0.05). Results The material type (p < 0.05), application of adhesive resin (p < 0.05) and cavity depth (p < 0.05) significantly affected the shrinkage values. The interaction terms were also significant (p < 0.05). All the bulk-fill resin composites tested showed significantly less shrinkage when applied in cavities with adhesive resin (0.94-2.55) compared with those without (2.01-3.45) (p < 0.05) and presented significantly more shrinkage after polymerisation (p < 0.05). At a 2-mm cavity depth without (2 mm, 2.28; 4 mm, 2.41) and with adhesive (2 mm, 0.94; 4 mm, 1.67), significantly less shrinkage was observed with FB compared with SDR and TB (p < 0.05). At a 4-mm cavity depth without (3.14) and with adhesive (2.55), SDR showed significantly higher shrinkage compared with FB and TB (p < 0.05). Conclusions The bulk-fill composites tested presented less shrinkage when used in conjunction with adhesive resin application on dentin. Overall, the low-viscosity bulk-fill resin SDR showed more shrinkage compared with high-viscosity resins tested.
dc.description.sponsorshipTürkiye Bilimsel ve Teknolojik Araştırma Kurumu (TÜBİTAK)en_US
dc.identifier.citationErsen, K. A., Gürbüz, Ö. ve Özcan, M. (2020). Evaluation of polymerization shrinkage of bulk-fill resin composites using microcomputed tomography. Clinical Oral Investigations, 24(5), 1687-1693. http://doi.org/10.1007/s00784-019-03025-5
dc.identifier.doi10.1007/s00784-019-03025-5
dc.identifier.endpage1693
dc.identifier.issn1432-6981
dc.identifier.issn1436-3771
dc.identifier.issue5
dc.identifier.scopusqualityQ1
dc.identifier.startpage1687
dc.identifier.urihttp://doi.org/10.1007/s00784-019-03025-5
dc.identifier.urihttps://hdl.handle.net/20.500.12511/4731
dc.identifier.volume24
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherSpringer-Verlag
dc.relation.ecinfo:eu-repo/grantAgreement/TUBITAK/SOBAG/215S840
dc.relation.ispartofClinical Oral Investigationsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/embargoedAccess
dc.subjectAdhesion
dc.subjectAdhesive Resin
dc.subjectBulk-Fill Resin Composite
dc.subjectMicro-CT
dc.subjectPolymerisation Shrinkage
dc.titleEvaluation of polymerization shrinkage of bulk-fill resin composites using microcomputed tomography
dc.typeArticle

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