Cuspal deflection of teeth restored with bulk fill flowable composite resins, with and without fiber-reinforcement and evaluated by Micro-computed Tomography

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dc.contributor.authorParker, Raeesa
dc.contributor.authorMulder, Riaan
dc.contributor.authorKeanly, Colin
dc.date.accessioned2024-11-27T10:16:35Z
dc.date.available2024-11-27T10:16:35Z
dc.date.issued2023-07-27
dc.description.abstractPolymerisation shrinkage of composite resins is a clinical challenge which has been well documented in the literature. Many studies investigating polymerisation shrinkage stress measure cuspal deflection, which is a manifestation of this stress. The introduction of flowable bulk-fill composite (BFRBC) materials has streamlined the restorative process, though the shrinkage and cuspal deflection from these BFRBCs has not been compared with regards to its use with polyethylene fibers (Ribbond fibers). The authors describe a method to measure the cuspal deflection of flowable BFRBCs placed in cavities of standardised dimensions at distinct steps of the restorative process, with and without fiber-reinforcement and using x-ray micro-computed tomography. Coordinate points are established on the buccal and lingual aspects of scanned specimens using the Volume Graphics VG Studio max 3.2.5 (Hiedelberg, Germany 2018) software. The system allows for these landmarks to be established across each scan (of the same tooth), ensuring standardization of each specimen. Further anatomical points are used to enable analysis. Comparison of angles generated across these points determines the extent of cuspal deflection. •A method of measuring the cuspal deflection of composite resins is proposed. •Experimental procedures are provided. •Data analysis methods are outlined.en_US
dc.description.sponsorshipThis work was supported by a grant provided by Prof Riaan Mulder Author Incentive Fund and The University of the Western Cape Senate Research Funds (RP2022/3).en_US
dc.identifier.citationParker R, Mulder R, Keanly C. Cuspal deflection of teeth restored with bulk fill flowable composite resins, with and without fiber-reinforcement and evaluated by Micro-computed Tomography. MethodsX. 2023 Jul 27;11:102302. doi: 10.1016/j.mex.2023.102302. PMID: 37577165; PMCID: PMC10413345.en_US
dc.identifier.issn2215-0161
dc.identifier.urihttps://hdl.handle.net/10566/19731
dc.language.isoenen_US
dc.publisherElsevier Methods Xen_US
dc.relation.ispartofseriesJul 27;11;PMID: 37577165
dc.subjectBulk-fill flowable composite resinen_US
dc.subjectRibbond fiber-reinforcementen_US
dc.subjectCuspal deflectionen_US
dc.subjectPolymerisation shrinkageen_US
dc.subjectDigital image processingen_US
dc.titleCuspal deflection of teeth restored with bulk fill flowable composite resins, with and without fiber-reinforcement and evaluated by Micro-computed Tomographyen_US
dc.typeArticleen_US

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