How do titanium and Ti6Al4V corrode in fluoridated medium as found in the oral cavity? An in vitro study

Júlio C.M. Souza; Sandra L. Barbosa; Edith A. Ariza; Mariana Henriques; Wim Teughels; Pierre Ponthiaux; Jean Pierre Celis; Luis A. Rocha

doi:10.1016/j.msec.2014.11.055

How do titanium and Ti6Al4V corrode in fluoridated medium as found in the oral cavity? An in vitro study

Júlio C.M. Souza^*, Sandra L. Barbosa, Edith A. Ariza, Mariana Henriques, Wim Teughels, Pierre Ponthiaux, Jean Pierre Celis, Luis A. Rocha

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

139 Citations (Scopus)

Abstract

The purpose of this work was to evaluate the corrosion of commercially pure (CP) titanium and Ti6Al4V in vitro at different F^- concentrations regularly found in the oral cavity by using different electrochemical tests and surface analysis techniques. electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) and potentiodynamic polarization tests were associated to advanced characterization techniques such as SEM, EDS, AFM, ICP-MS and XPS. OCP tests revealed a higher reactivity of both CP titanium and Ti6Al4V at 12,300 ppm F^- concentration than that recorded at 227 ppm F^-. Also, a significant decrease of the corrosion resistance of both materials was noticed by EIS in fluoride solutions. Material loss caused by corrosion was noticed on titanium surfaces by SEM and AFM in the presence of high F^- concentration. CP titanium degraded by pitting corrosion while Ti6Al4V suffered from general corrosion showing micro-cracks on surface. Furthermore, a high release of metallic ions from the test samples after immersion at high F^- concentrations was detected by ICP-MS, that can be potentially toxic to oral tissues.

Original language	English
Pages (from-to)	384-393
Number of pages	10
Journal	Materials Science and Engineering C
Volume	47
DOIs	https://doi.org/10.1016/j.msec.2014.11.055
Publication status	Published - 1 Feb 2015
Externally published	Yes

Keywords

Electrochemical tests
Fluoride
Surface analysis
Ti6Al4V
Titanium

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10.1016/j.msec.2014.11.055

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title = "How do titanium and Ti6Al4V corrode in fluoridated medium as found in the oral cavity? An in vitro study",

abstract = "The purpose of this work was to evaluate the corrosion of commercially pure (CP) titanium and Ti6Al4V in vitro at different F- concentrations regularly found in the oral cavity by using different electrochemical tests and surface analysis techniques. electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) and potentiodynamic polarization tests were associated to advanced characterization techniques such as SEM, EDS, AFM, ICP-MS and XPS. OCP tests revealed a higher reactivity of both CP titanium and Ti6Al4V at 12,300 ppm F- concentration than that recorded at 227 ppm F-. Also, a significant decrease of the corrosion resistance of both materials was noticed by EIS in fluoride solutions. Material loss caused by corrosion was noticed on titanium surfaces by SEM and AFM in the presence of high F- concentration. CP titanium degraded by pitting corrosion while Ti6Al4V suffered from general corrosion showing micro-cracks on surface. Furthermore, a high release of metallic ions from the test samples after immersion at high F- concentrations was detected by ICP-MS, that can be potentially toxic to oral tissues.",

keywords = "Electrochemical tests, Fluoride, Surface analysis, Ti6Al4V, Titanium",

author = "Souza, {J{\'u}lio C.M.} and Barbosa, {Sandra L.} and Ariza, {Edith A.} and Mariana Henriques and Wim Teughels and Pierre Ponthiaux and Celis, {Jean Pierre} and Rocha, {Luis A.}",

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doi = "10.1016/j.msec.2014.11.055",

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AU - Souza, Júlio C.M.

AU - Barbosa, Sandra L.

AU - Ariza, Edith A.

AU - Henriques, Mariana

AU - Teughels, Wim

AU - Ponthiaux, Pierre

AU - Celis, Jean Pierre

AU - Rocha, Luis A.

PY - 2015/2/1

Y1 - 2015/2/1

N2 - The purpose of this work was to evaluate the corrosion of commercially pure (CP) titanium and Ti6Al4V in vitro at different F- concentrations regularly found in the oral cavity by using different electrochemical tests and surface analysis techniques. electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) and potentiodynamic polarization tests were associated to advanced characterization techniques such as SEM, EDS, AFM, ICP-MS and XPS. OCP tests revealed a higher reactivity of both CP titanium and Ti6Al4V at 12,300 ppm F- concentration than that recorded at 227 ppm F-. Also, a significant decrease of the corrosion resistance of both materials was noticed by EIS in fluoride solutions. Material loss caused by corrosion was noticed on titanium surfaces by SEM and AFM in the presence of high F- concentration. CP titanium degraded by pitting corrosion while Ti6Al4V suffered from general corrosion showing micro-cracks on surface. Furthermore, a high release of metallic ions from the test samples after immersion at high F- concentrations was detected by ICP-MS, that can be potentially toxic to oral tissues.

AB - The purpose of this work was to evaluate the corrosion of commercially pure (CP) titanium and Ti6Al4V in vitro at different F- concentrations regularly found in the oral cavity by using different electrochemical tests and surface analysis techniques. electrochemical impedance spectroscopy (EIS), open circuit potential (OCP) and potentiodynamic polarization tests were associated to advanced characterization techniques such as SEM, EDS, AFM, ICP-MS and XPS. OCP tests revealed a higher reactivity of both CP titanium and Ti6Al4V at 12,300 ppm F- concentration than that recorded at 227 ppm F-. Also, a significant decrease of the corrosion resistance of both materials was noticed by EIS in fluoride solutions. Material loss caused by corrosion was noticed on titanium surfaces by SEM and AFM in the presence of high F- concentration. CP titanium degraded by pitting corrosion while Ti6Al4V suffered from general corrosion showing micro-cracks on surface. Furthermore, a high release of metallic ions from the test samples after immersion at high F- concentrations was detected by ICP-MS, that can be potentially toxic to oral tissues.

KW - Electrochemical tests

KW - Fluoride

KW - Surface analysis

KW - Ti6Al4V

KW - Titanium

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DO - 10.1016/j.msec.2014.11.055

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JO - Materials Science and Engineering C

JF - Materials Science and Engineering C

ER -

How do titanium and Ti6Al4V corrode in fluoridated medium as found in the oral cavity? An in vitro study

Abstract

Keywords

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