| 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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Herrero-Climent, Mariano
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (18/18 displayed)
- 2024SEM analysis and micro-CT evaluation of four dental implants after three different mechanical requests. In vitro study
- 2024SEM analysis and micro-CT evaluation of four dental implants after three different mechanical requests - in vitro studycitations
- 2022Mechanical characterization of dental prostheses manufactured with PMMA–graphene compositescitations
- 2021Effect of the Acid-Etching on Grit-Blasted Dental Implants to Improve Osseointegration: Histomorphometric Analysis of the Bone-Implant Contact in the Rabbit Tibia Modelcitations
- 2021Benefits of Residual Aluminum Oxide for Sand Blasting Titanium Dental Implants: Osseointegration and Bactericidal Effectscitations
- 2020Influence of the CAD-CAM Systems on the Marginal Accuracy and Mechanical Properties of Dental Restorationscitations
- 2020Mechanical Properties of CoCr Dental-Prosthesis Restorations Made by Three Manufacturing Processes. Influence of the Microstructure and Topographycitations
- 2020Corrosion Resistance and Ion Release of Dental Prosthesis of CoCr Obtained by CAD-CAM Milling, Casting and Laser Sinteringcitations
- 2020Mechanical properties of CoCr dental-prosthesis restorations made by three manufacturing processes: influence of the microstructure and topographycitations
- 2020Corrosion resistance and ion release of dental prosthesis of CoCr obtained by CAD-CAM milling, casting and laser sinteringcitations
- 2019Influence of the Elastic Modulus on the Osseointegration of Dental Implants.citations
- 2019Influence of the elastic modulus on the osseointegration of dental implantscitations
- 2018Unravelling the effect of macro and microscopic design of dental implants on osseointegration: a randomised clinical study in minipigs.citations
- 2017Effectiveness of a new dental implant bioactive surface: histological and histomorphometric comparative study in minipigs.citations
- 2015Effect of irrigation and stainless steel drills on dental implant bed heat generation.citations
- 2014Implant-abutment connections: influence of the design on the microgap and their fatigue and fracture behavior of dental implants.citations
- 2013Influence of acid-etching after grit-blasted on osseointegration of titanium dental implants: in vitro and in vivo studies.citations
- 2012Fibroblast adhesion and activation onto micro-machined titanium surfaces.citations
Places of action
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article
Mechanical Properties of CoCr Dental-Prosthesis Restorations Made by Three Manufacturing Processes. Influence of the Microstructure and Topography
Abstract
<jats:p>The aim of this study is to compare the mechanical properties of three different dental restorations’ manufacturing processes (CADCAM milling, casting and laser sintering) generated by only one laboratory scanner focusing on marginal fit analysis and their mechanical properties. A chrome-cobalt (Cr-Co) alloy from the same batch was used for three different methods to make an implant abutment. This simulates a maxillary right first molar that was fixed in a hemi-maxillary stone model. Five scans were performed by each tested framework. Nine frameworks were manufactured for each manufacture procedure. Field-Emission Scanning Electron Microscope (FE-SEM) direct vision was used to marginal gap measurement in five critical points for each specimen. In order to fix the samples in the microscope chamber, the restorations were submitted at a compression load of 50 N. The samples always have the same orientation and conditions. The resolution of the microscope is 4 nm and it is equipped by J image software. The microstructure of the samples was also determined with the FE-SEM equipped with EDS-microanalysis. Roughness parameters were measured using White Light Interferometry (WLI). The arithmetical mean for the Ra and Rq of each sample was calculated. The samples were mechanically characterized by means of microhardness and flexural testing. Servo-hydraulic testing machine was used with cross-head rate of 1 mm/min. Two-way ANOVA statistical analysis was performed to determine whether the marginal discrepancies and mechanical properties were significantly different between each group (significance level p < 0.05). The overall mean marginal gap values were: from 50.53 ± 10.30 µm for the samples produced by CADCAM to 85.76 ± 22.56 µm for the samples produced by the casting method. Laser sintering presents a marginal gap of 60.95 ± 20.66 µm. The results revealed a statistically significant difference (p-value < 0.005) in the mean marginal gap between the CADCAM systems studied. The higher flexure load to fracture for these restorations were for CADCAM restoration and the lower was for the casting samples. For these restorations, CADCAM Restoration yielded a higher flexure load to fracture and Casting ones yielded the lower. Porosity and microstructure play a very important role in the mechanical properties.</jats:p>