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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Borba, Márcia
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2024A Comprehensive Review of the Multifaceted Characterisation Approaches of Dental Ceramics
- 2024Influence of Different Surface Finishing Protocols on the Wear Behavior of Lithium Disilicate Glass-Ceramics
- 2023Influence of piston material on the fatigue behavior of a glass-ceramiccitations
- 2023Fatigue resistance of polymeric restorative materials: effect of supporting substrate
- 2023Optimization of Lithium Disilicate Glass-Ceramic Crowns: Finish Line, Scanning, and Processing Methodscitations
- 2020Effect of a new irrigant solution containing glycolic acid on smear layer removal and chemical/mechanical properties of dentincitations
- 2019Effect of supporting substrate on the failure behavior of a polymer-infiltrated ceramic network materialcitations
- 2019Effect of supporting substrate on the failure behavior of a polymer-infiltrated ceramic network materialcitations
- 2019Fatigue Behavior of Crystalline-Reinforced Glass-Ceramicscitations
- 2018Effect of screw-access hole and mechanical cycling on fracture load of 3-unit implant-supported fixed dental prosthesescitations
- 2018Precision of different fatigue methods for predicting glass-ceramic failurecitations
- 2018Precision of different fatigue methods for predicting glass-ceramic failurecitations
- 2018How does the piston material affect the in vitro mechanical behavior of dental ceramics?citations
- 2018How does the piston material affect the in vitro mechanical behavior of dental ceramics?citations
- 2017Influence of surface finishing on fracture load and failure mode of glass ceramic crownscitations
- 2016Effect of different aging methods on the mechanical behavior of multi-layered ceramic structurescitations
- 2016Effect of different aging methods on the mechanical behavior of multi-layered ceramic structurescitations
- 2014Effect of the infrastructure material on the failure behavior of prosthetic crownscitations
- 2011Flexural strength and failure modes of layered ceramic structurescitations
- 2011Flexural strength and failure modes of layered ceramic structurescitations
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article
Effect of the infrastructure material on the failure behavior of prosthetic crowns
Abstract
<p>Objectives: To evaluate the effect of infrastructure (IS) material on the fracture behavior of prosthetic crowns. </p><p>Methods: Restorations were fabricated using a metal die simulating a prepared tooth. Four groups were evaluated: YZ-C, Y-TZP (In-Ceram YZ, Vita) IS produced by CAD-CAM; IZ-C, In-Ceram Zirconia (Vita) IS produced by CAD-CAM; IZ-S, In-Ceram Zirconia (Vita) IS produced by slip-cast; MC, metal IS (control). The IS were veneered with porcelain and resin cemented to fiber-reinforced composite dies. Specimens were loaded in compression to failure using a universal testing machine. The 30° angle load was applied by a spherical piston, in 37°C distilled water. Fractography was performed using stereomicroscope and SEM. Data were statistically analyzed with Anova and Student-Newman-Keuls tests (α = 0.05). </p><p>Results: Significant differences were found between groups (p = 0.022). MC showed the highest mean failure load, statistically similar to YZ-C. There was no statistical difference between YZ-C, IZ-C and IZ-S. MC and YZ-C showed no catastrophic failure. IZ-C and IZ-S showed chipping and catastrophic failures. The fracture behavior is similar to reported clinical failures. </p><p>Significance: Considering the ceramic systems evaluated, YZ-C and MC crowns present greater fracture load and a more favorable failure mode than In-Ceram Zirconia crowns, regardless of the fabrication type (CAD-CAM or slip-cast).</p>