| People | Locations | Statistics |
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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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Moraes, Rafael R.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2024Impact of try-in paste removal on the fatigue behavior of bonded lithium disilicate ceramicscitations
- 2022The Ability of Two Chewing Simulation Devices in Emulating the Clinical Deterioration of Anterior Composite Restorations in Severely Worn Teethcitations
- 2020Non-silicate nanoparticles for improved nanohybrid resin compositescitations
- 2020Cytotoxicity of contemporary resin-based dental materials in contact with dentincitations
- 2019The progressive wear and abrasiveness of novel graded glass/zirconia materials relative to their dental ceramic counterpartscitations
- 2017Functionalized pink Al2O3citations
- 2016Polymer infiltrated ceramic network structures for resistance to fatigue fracture and wearcitations
- 2016Mono or polycrystalline alumina-modified hybrid ceramicscitations
- 2014Do nanofill or submicron composites show improved smoothness and gloss?A systematic review of in vitro studiescitations
- 2013Polymerization efficiency through translucent and opaque fiber posts and bonding to root dentincitations
Places of action
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article
The progressive wear and abrasiveness of novel graded glass/zirconia materials relative to their dental ceramic counterparts
Abstract
<p>Objective: To investigate the wear behavior of novel graded glass/zirconia materials and their abrasiveness to the antagonist relative to homogeneous zirconias (polished or glazed) and a glass-ceramic. </p><p>Methods: Graded glass/zirconia specimens were prepared by sintering with concurrent glass-infiltration of pre-sintered zirconia (3Y-TZP) with a polished or as-machined surface. Monolithic zirconia samples were sintered and their surfaces were polished or glazed (as-machined). Glass-ceramic samples were obtained and the surface polished. All specimens were subjected to chewing simulations with a steatite antagonist (r = 3 mm) and a cyclic load of 50 N. Quantitative measurements of wear and roughness were performed on ceramics and antagonists for prescribed number of cycles. Damage sustained in ceramics and antagonists was analyzed by SEM. </p><p>Results: The polished zirconia presented little to no variation in wear depth (2 μm) and roughness (0.06 μm). Graded and glazed zirconia experienced a rapid increase in wear depth while the superficial glass layer was present (until 1000 cycles), but showed little variations afterwards — at 450k cycles ∼15 μm for graded and 78 μm for glazed zirconia. The glass-ceramic presented the greatest wear depth (463 μm) and roughness (1.48 μm). Polished zirconia, polished graded zirconia and glazed zirconia yielded significantly lower volumetric wear (∼3 mm<sup>3</sup>) of the antagonist than as-machined graded zirconia and glass-ceramic (∼5 mm<sup>3</sup>). </p><p>Significance: Polished graded zirconia and polished zirconia presented little wear and roughness, as well as yielded reduced antagonist wear. Glassy materials are both more susceptible to wear and more abrasive to the antagonist relative to zirconia.</p>