The influence of resin flexural modulus on the magnitude of ceramic strengthening

Dental Materials : Official Publication of the Academy of Dental Materials
Garry J P FlemingOwen Addison

Abstract

The aim was to determine the magnitude of ceramic resin-strengthening with resin-based materials with varying flexural moduli using a regression technique to assess the theoretical strengthening at a 'zero' resin-coating thickness. The hypothesis tested was that experimentally, increasing resin flexural modulus results in increased resin-strengthening observed at a theoretical 'zero' resin-coating thickness. Vitadur Alpha dentin porcelain disk (n=250) were condensed, fired, alumina particle air abraded and randomly assigned into ten groups. Groups were resin-coated at 50, 100 and 150μm with Venus Flow, Rely-X Veneer and Clearfil AP-X before biaxial flexure testing at 24h and the stress at failure calculated using a multilayer analysis. An analytical methodological approach was undertaken to predict the biaxial flexure stresses under boundary conditions that reflected the experimental test and a finite element model was used to verify the analytical prediction. The magnitude of resin-reinforcement was significantly influenced by resin-coating type (P<0.001) and resin-coating thickness (P=0.013), however, a significant interaction was observed between resin-coating type and thickness (P=0.048). Linear regression identified a 17, ...Continue Reading

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Citations

Oct 5, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Sumana PosritongMarco C Bottino
Aug 13, 2015·Operative Dentistry·A O SpazzinR R Moraes
Apr 18, 2015·The Journal of Prosthetic Dentistry·Júlia R AlmeidaRafael R Moraes
Jun 4, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Ataís Bacchi, Carmem S Pfeifer
Feb 12, 2014·Journal of Dental Research·P HooiG J P Fleming
Jun 14, 2018·Brazilian Dental Journal·Fabíola Jardim BarbonAloísio Oro Spazzin
Aug 25, 2018·BioMed Research International·Jader SebbenAloísio O Spazzin
Nov 11, 2019·The Journal of Prosthetic Dentistry·Fabíola Jardim BarbonNoéli Boscato
Aug 4, 2018·Dental Materials : Official Publication of the Academy of Dental Materials·Chinwe O UwalakaMichael J Cattell
Mar 7, 2017·Dental Materials : Official Publication of the Academy of Dental Materials·Xu CaoOwen Addison
Jul 15, 2021·Australian Endodontic Journal : the Journal of the Australian Society of Endodontology Inc·Jonathan SchubertHoward Roberts

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