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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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Camilleri, Josette
University of Birmingham
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (23/23 displayed)
- 2024Proposing new standards for testing solubility of pulp preservation materialscitations
- 2024Chemical, antibacterial and cytotoxic properties of four different endodontic sealer leachates over timecitations
- 2024Leaching and cytotoxicity of bismuth oxide in ProRoot MTAcitations
- 2024Characterization and Assessment of Physical Properties of 3 Single Syringe Hydraulic Cement-based Sealerscitations
- 2023Editorial
- 2022Surface characteristics and bacterial adhesion of endodontic cements.citations
- 2022Surface characteristics and bacterial adhesion of endodontic cements ; ENEngelskEnglishSurface characteristics and bacterial adhesion of endodontic cementscitations
- 2021Effect of different manipulations on the physical, chemical and microstructural characteristics of Biodentinecitations
- 2021PRILE 2021 guidelines for reporting laboratory studies in endodontologycitations
- 2020Antimicrobial and ultrastructural properties of root canal filling materials exposed to bacterial challengecitations
- 2020Characterization of heat resistant hydraulic sealer for warm vertical obturationcitations
- 2020Classification of hydraulic cements used in dentistrycitations
- 2019Bioactivity potential of Portland cement in regenerative endodontic procedurescitations
- 2019Investigation of the effect of the water to powder ratio on hydraulic cement propertiescitations
- 2018Surface Microstructural Changes and Release of Ions from Dental Metal Alloy Removable Prostheses in Patients Suffering from Acid Refluxcitations
- 2018The effect of mixing method on tricalcium silicate-based cementcitations
- 2018Assessment of corrosion resistance of cast cobalt- and nickel-chromium dental alloys in acidic environmentscitations
- 2017Antimicrobial activity of ProRoot MTA in contact with bloodcitations
- 2017Bonding over Dentin Replacement Materialscitations
- 2017Will Bioceramics be the Future Root Canal Filling Materials?citations
- 2016Assessment of the interaction of Portland cement-based materials with blood and tissue fluids using an animal modelcitations
- 2015Effect of sterilization techniques prior to antimicrobial testing on physical properties of dental restorative materialscitations
- 2014Color stability of white mineral trioxide aggregate in contact with hypochlorite solutioncitations
Places of action
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article
Assessment of corrosion resistance of cast cobalt- and nickel-chromium dental alloys in acidic environments
Abstract
<p>BACKGROUND: The aim of this study was to compare the degradation resistance of nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys used as a base material for partial dentures in contact with saliva.</p><p>METHODS: Wiron® 99 and Wironit Extra-Hard® were selected as representative casting alloys for Ni-Cr and Co-Cr alloys, respectively. The alloys were tested in contact with deionized water, artificial saliva and acidified artificial saliva. Material characterization was performed by X-ray diffractometry (XRD) and microhardness and nanohardness testing. The corrosion properties of the materials were then analyzed using open circuit potential analysis and potentiodynamic analysis. Alloy leaching in solution was assessed by inductively coupled plasma mass spectrometry techniques.</p><p>RESULTS: Co-Cr alloy was more stable than the Ni-Cr alloy in all solutions tested. Leaching of nickel and corrosion attack was higher in Ni-Cr alloy in artificial saliva compared with the acidified saliva. The corrosion resistance of the Co-Cr alloy was seen to be superior to that of the Ni-Cr alloy, with the former exhibiting a lower corrosion current in all test solutions. Microstructural topographical changes were observed for Ni-Cr alloy in contact with artificial saliva. The Ni-Cr alloy exhibited microstructural changes and lower corrosion resistance in artificial saliva. The acidic changes did not enhance the alloy degradation.</p><p>CONCLUSIONS: Ni-Cr alloys are unstable in solution and leach nickel. Co-Cr alloys should be preferred for clinical use.</p>