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Abstract
INTRODUCTION
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.
METHOD
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.
RESULTS
The magnitude of resin-reinforcement was significantly influenced by resin-coating type (P
Original language | English |
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Pages (from-to) | 769-776 |
Number of pages | 8 |
Journal | Dental Materials |
Volume | 28 |
Issue number | 7 |
DOIs | |
Publication status | Published - 1 Jul 2012 |
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Dive into the research topics of 'The influence of resin flexural modulus on the magnitude of ceramic strengthening'. Together they form a unique fingerprint.Projects
- 1 Finished
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Resin Strengthening of Dental Ceramics to Prevent Fracture of Restorations in Service
Addison, O.
Engineering & Physical Science Research Council
5/01/11 → 4/01/12
Project: Research