Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants
The stability of anodic films potentiodynamically grown on titanium, titanium-grade 2, and Ti6Al4V alloy was studied in a simulated physiological electrolyte, up to 8.0 V, and at room temperature to determine the corrosion resistance levels of dental implants. In PBS (phosphate buffer saline) soluti...
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| Format: | Article |
| Language: | English |
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Wiley
2011-01-01
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| Series: | International Journal of Electrochemistry |
| Online Access: | http://dx.doi.org/10.4061/2011/574502 |
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| author | C. E. B. Marino L. H. Mascaro |
| author_facet | C. E. B. Marino L. H. Mascaro |
| author_sort | C. E. B. Marino |
| collection | DOAJ |
| description | The stability of anodic films potentiodynamically grown on titanium, titanium-grade 2, and Ti6Al4V alloy was studied in a simulated physiological electrolyte, up to 8.0 V, and at room temperature to determine the corrosion resistance levels of dental implants. In PBS (phosphate buffer saline) solution, thin titanium oxide films protect the surface of the Ti6%Al4%V alloy up to 6.0 V, pure Ti up to 8.0 V, and Ti-grade 2 up to 1.5 V. At more positive potentials, localized corrosion starts to occur possibly due to the alloy elements (Ti6Al4V-V and Al) and variable levels of interstitials (Ti-grade 2: C, N, and Fe, mainly). When the biomaterials were submitted to open-circuit conditions, in artificial saliva, the worst corrosion resistance was observed in dental implant (Ti-grade 2), according to the open-circuit potential values and reconstruction rate analysis of these oxide films. The XPS spectra revealed TiO2 oxide as the main phase in the barrier oxide film coating the dental implant. |
| format | Article |
| id | doaj-art-d48de6c550ea40cc97e13cf5908ac370 |
| institution | Kabale University |
| issn | 2090-3537 |
| language | English |
| publishDate | 2011-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Electrochemistry |
| spelling | doaj-art-d48de6c550ea40cc97e13cf5908ac3702025-02-03T05:51:18ZengWileyInternational Journal of Electrochemistry2090-35372011-01-01201110.4061/2011/574502574502Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental ImplantsC. E. B. Marino0L. H. Mascaro1Laboratório de Materiais Bicompatíveis, Departamento de Engenharia Mecânica, Universidade Federal do Paraná, Jardim das Américas, CP 19081, 81531-990 Curitiba, PR, BrazilLaboratório Interdisciplinar de Cerâmica, Departamento de Química, Universidade Federal de São Carlos, Rod. Washungton Luiz, km 235, CP 676, 13565-905 São Carlos, SP, BrazilThe stability of anodic films potentiodynamically grown on titanium, titanium-grade 2, and Ti6Al4V alloy was studied in a simulated physiological electrolyte, up to 8.0 V, and at room temperature to determine the corrosion resistance levels of dental implants. In PBS (phosphate buffer saline) solution, thin titanium oxide films protect the surface of the Ti6%Al4%V alloy up to 6.0 V, pure Ti up to 8.0 V, and Ti-grade 2 up to 1.5 V. At more positive potentials, localized corrosion starts to occur possibly due to the alloy elements (Ti6Al4V-V and Al) and variable levels of interstitials (Ti-grade 2: C, N, and Fe, mainly). When the biomaterials were submitted to open-circuit conditions, in artificial saliva, the worst corrosion resistance was observed in dental implant (Ti-grade 2), according to the open-circuit potential values and reconstruction rate analysis of these oxide films. The XPS spectra revealed TiO2 oxide as the main phase in the barrier oxide film coating the dental implant.http://dx.doi.org/10.4061/2011/574502 |
| spellingShingle | C. E. B. Marino L. H. Mascaro Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants International Journal of Electrochemistry |
| title | Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants |
| title_full | Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants |
| title_fullStr | Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants |
| title_full_unstemmed | Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants |
| title_short | Electrochemical Tests to Evaluate the Stability of the Anodic Films on Dental Implants |
| title_sort | electrochemical tests to evaluate the stability of the anodic films on dental implants |
| url | http://dx.doi.org/10.4061/2011/574502 |
| work_keys_str_mv | AT cebmarino electrochemicalteststoevaluatethestabilityoftheanodicfilmsondentalimplants AT lhmascaro electrochemicalteststoevaluatethestabilityoftheanodicfilmsondentalimplants |