The effect of C-factor and flowable resin or fiber use at the interface on microtensile bond strength to dentin

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dc.contributor.authorBelli, Sema
dc.contributor.authorDoenmez, Nazmiye
dc.contributor.authorEskitascioglu, Guercan
dc.date.accessioned2020-03-26T17:04:30Z
dc.date.available2020-03-26T17:04:30Z
dc.date.issued2006
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractPurpose: As polymerization shrinkage is compensated by flow of the composite, several attempts have been performed for relief of the contraction stresses. The aim of this in vitro study was to evaluate the effect of flowable composite or fiber use under composite restorations on microtensile bond strength of composite to dentin in Class I cavities or flat dentin surfaces. Materials and Methods: Twenty-four sound extracted human first or second mandibular molars were randomly assigned to two groups (Class I cavities with a high c-factor or flattened dentin surfaces with a low c-factor). The dentin surfaces were treated with adhesive resin and restored with resin composite using four different techniques (bulk; with flowable composite; with a glass fiber (everStick NET); with a polyethylene fiber [Ribbond]). After 24 h storage at 37 degrees C in water, the specimens were thermocycled 600 times between 5 and 55 degrees C. Microtensile test specimens with a 0.9x0.9 (+/- 0.1) mm(2) cross-sectional area were produced, and bond strength tests were carried out at a crosshead speed of 1 mm/min. Mean bond strengths were analyzed using two-way ANOVA and Bonferroni's test at a 95% significance level. Results: Flowable composite decreased dentin bond strength in cavities with a high c-factor (p<0.05). The group restored with everStick NET showed stable bond strengths regardless of the effect of c-factor. Ribbond THM used under composite restorations increased dentin bond strength in cavities with a high c-factor (p<0.05). Conclusion: Flowable composite decreased dentin bond strength in cavities with a high c-factor; however, using a glass fiber in combination with flowable resin, stable bond strengths can be achieved in cavities with a high c-factor. Polyethylene fiber in combination with flowable resin increases the microtensile bond strength to the dentin floor in cavities with a high c-factor.en_US
dc.identifier.endpage253en_US
dc.identifier.issn1461-5185en_US
dc.identifier.issn1757-9988en_US
dc.identifier.issue4en_US
dc.identifier.pmid16958290en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage247en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/20717
dc.identifier.volume8en_US
dc.identifier.wosWOS:000239796600008en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherQUINTESSENCE PUBLISHING CO INCen_US
dc.relation.ispartofJOURNAL OF ADHESIVE DENTISTRYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectc-factoren_US
dc.subjectglass fiberen_US
dc.subjectpolyethylene fiberen_US
dc.subjectflowable compositesen_US
dc.subjectmicrotensile bond strengthsen_US
dc.titleThe effect of C-factor and flowable resin or fiber use at the interface on microtensile bond strength to dentinen_US
dc.typeArticleen_US

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