| 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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Bonfante, Estevam A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (14/14 displayed)
- 2022Residual stress estimated by nanoindentation in pontics and abutments of veneered zirconia fixed dental prosthesescitations
- 2022Temporary materials used in prosthodonticscitations
- 2022Stability of fatigued and aged ZTA compared to 3Y-TZP and Al2O3 ceramic systemscitations
- 2021Effect of supplemental acid-etching on the early stages of osseointegrationcitations
- 2021Physicochemical and mechanical characterization of a fiber-reinforced composite used as frameworks of implant-supported prostheses.citations
- 2021Hydrothermal aging affects the three-dimensional fit and fatigue lifetime of zirconia abutmentscitations
- 2020Effect of indenter material on reliability of all-ceramic crowns.citations
- 2020Alumina-toughened zirconia for dental applications: Physicochemical, mechanical, optical, and residual stress characterization after artificial aging.citations
- 2020Aging resistant ZTA composite for dental applicationscitations
- 2019Osteointegrative and microgeometric comparison between micro-blasted and alumina blasting/acid etching on grade II and V titanium alloys (Ti-6Al-4V)citations
- 2019Synergistic effects of implant macrogeometry and surface physicochemical modifications on osseointegrationcitations
- 2013MicroCT analysis of a retrieved root restored with a bonded fiber-reinforced composite dowelcitations
- 2012Physicochemical characterization and in vivo evaluation of amorphous and partially crystalline calcium phosphate coatings fabricated on Ti-6Al-4V implants by the plasma spray methodcitations
- 2012Characterization and in vivo evaluation of laser sintered dental endosseous implants in dogscitations
Places of action
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article
Stability of fatigued and aged ZTA compared to 3Y-TZP and Al2O3 ceramic systems
Abstract
<p>To evaluate the effect of fatigue and aging on the crystalline content and reliability of a zirconia-toughened-alumina (ZTA) composite compared to its individual counterpart materials (3Y-TZP and Al<sub>2</sub>O<sub>3</sub>). Thirty-six disc-shaped specimens per group were obtained to comply with ISO 6872:2015. Crystalline content, microstructure and reliability of experimental groups were evaluated in four stages: 1) immediate; 2) aged; 3) fatigued; 4) aged + fatigue. Aging was performed in autoclave and Step-Stress-Accelerated-Life-Testing (SSALT) was performed using three stress profiles. Weibull statistics were used to determine Weibull parameters and life-expectancy. A significant increase in monoclinic phase in 3Y-TZP was observed after aging (19.31%), fatigue (17.88%) and aging + fatigue (55.81%), while ZTA evidenced minimal variation among all conditions (<5.69%). 3Y-TZP presented higher reliability than ZTA at 300 and 500 MPa, and ZTA outperformed Al<sub>2</sub>O<sub>3</sub> at the same stress missions. None of the ceramics yielded acceptable reliability at 800 MPa. A higher characteristic strength was observed for 3Y-TZP, followed by ZTA and Al<sub>2</sub>O<sub>3</sub>. While after aging ZTA and Al<sub>2</sub>O<sub>3</sub> remained stable, 3Y-TZP exhibited a significant increase in the characteristic stress. Aging did not affect the reliability of ZTA and Al<sub>2</sub>O<sub>3</sub>. 3Y-TZP demonstrated an increase in monoclinic content and characteristic strength after aging.</p>