Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva
Titanium Grade 4 (Ti G4) is the most commonly used material for dental implants due to its excellent mechanical properties, chemical stability and biocompatibility. A thin, self-passive oxide layer with protective properties to corrosion is formed on its surface. However, the spontaneous TiO<sub&...
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MDPI AG
2020-09-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/13/18/4154 |
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| author | Bożena Łosiewicz Patrycja Osak Joanna Maszybrocka Julian Kubisztal Sebastian Stach |
| author_facet | Bożena Łosiewicz Patrycja Osak Joanna Maszybrocka Julian Kubisztal Sebastian Stach |
| author_sort | Bożena Łosiewicz |
| collection | DOAJ |
| description | Titanium Grade 4 (Ti G4) is the most commonly used material for dental implants due to its excellent mechanical properties, chemical stability and biocompatibility. A thin, self-passive oxide layer with protective properties to corrosion is formed on its surface. However, the spontaneous TiO<sub>2</sub> layer is chemically unstable. In this work, the impact of autoclaving time on corrosion resistance of Ti G4 in artificial saliva solution with pH = 7.4 at 37 °C was studied. Ti G4 was sandblasted with white Al<sub>2</sub>O<sub>3</sub> particles and autoclaved for 30–120 min. SEM, EDS, 2D roughness profiles, confocal laser scanning microscopy, and a Kelvin scanning probe were used for the surface characterization of the Ti G4 under study. In vitro corrosion resistance tests were conducted using open circuit potential, polarization curves, and electrochemical impedance spectroscopy measurements. It was found that Sa parameter, electron work function, and thickness of the oxide layers, determined based on impedance measurements, increased after autoclaving. The capacitive behavior and high corrosion resistance of tested materials were revealed. The improvement in the corrosion resistance after autoclaving was due to the presence of oxide layers with high chemical stability. The optimal Ti G4 surface for dentistry can be obtained by sandblasting with Al<sub>2</sub>O<sub>3</sub> with an average grain size of 53 µm, followed by autoclaving for 90 min. |
| first_indexed | 2024-03-10T16:13:59Z |
| format | Article |
| id | doaj.art-d67b1f7ab5a948b1b5ad082b2d6cb647 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T16:13:59Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-d67b1f7ab5a948b1b5ad082b2d6cb6472023-11-20T14:13:46ZengMDPI AGMaterials1996-19442020-09-011318415410.3390/ma13184154Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial SalivaBożena Łosiewicz0Patrycja Osak1Joanna Maszybrocka2Julian Kubisztal3Sebastian Stach4Institute of Materials Engineering, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, PolandInstitute of Materials Engineering, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, PolandInstitute of Materials Engineering, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, PolandInstitute of Materials Engineering, Faculty of Science and Technology, University of Silesia in Katowice, 75 Pułku Piechoty 1A, 41-500 Chorzów, PolandInstitute of Biomedical Engineering, Faculty of Science and Technology, University of Silesia in Katowice, Będzińska 39, 41-200 Sosnowiec, PolandTitanium Grade 4 (Ti G4) is the most commonly used material for dental implants due to its excellent mechanical properties, chemical stability and biocompatibility. A thin, self-passive oxide layer with protective properties to corrosion is formed on its surface. However, the spontaneous TiO<sub>2</sub> layer is chemically unstable. In this work, the impact of autoclaving time on corrosion resistance of Ti G4 in artificial saliva solution with pH = 7.4 at 37 °C was studied. Ti G4 was sandblasted with white Al<sub>2</sub>O<sub>3</sub> particles and autoclaved for 30–120 min. SEM, EDS, 2D roughness profiles, confocal laser scanning microscopy, and a Kelvin scanning probe were used for the surface characterization of the Ti G4 under study. In vitro corrosion resistance tests were conducted using open circuit potential, polarization curves, and electrochemical impedance spectroscopy measurements. It was found that Sa parameter, electron work function, and thickness of the oxide layers, determined based on impedance measurements, increased after autoclaving. The capacitive behavior and high corrosion resistance of tested materials were revealed. The improvement in the corrosion resistance after autoclaving was due to the presence of oxide layers with high chemical stability. The optimal Ti G4 surface for dentistry can be obtained by sandblasting with Al<sub>2</sub>O<sub>3</sub> with an average grain size of 53 µm, followed by autoclaving for 90 min.https://www.mdpi.com/1996-1944/13/18/4154autoclavingcorrosion resistanceoxide layersalivatitanium |
| spellingShingle | Bożena Łosiewicz Patrycja Osak Joanna Maszybrocka Julian Kubisztal Sebastian Stach Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva Materials autoclaving corrosion resistance oxide layer saliva titanium |
| title | Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva |
| title_full | Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva |
| title_fullStr | Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva |
| title_full_unstemmed | Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva |
| title_short | Effect of Autoclaving Time on Corrosion Resistance of Sandblasted Ti G4 in Artificial Saliva |
| title_sort | effect of autoclaving time on corrosion resistance of sandblasted ti g4 in artificial saliva |
| topic | autoclaving corrosion resistance oxide layer saliva titanium |
| url | https://www.mdpi.com/1996-1944/13/18/4154 |
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