Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid
Ti-Ag alloys with 20 and 25 mass% Ag were prepared; their surfaces were polished using silicon carbide abrasive papers. The polished alloys were immersed in a simulated body fluid (SBF), and their surfaces were observed by scanning electron microscope (SEM) to investigate the spontaneous formation o...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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The Japan Society of Mechanical Engineers
2009-07-01
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| Series: | Journal of Biomechanical Science and Engineering |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/jbse/4/3/4_3_318/_pdf/-char/en |
| _version_ | 1828192515485859840 |
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| author | Masatoshi TAKAHASHI Masafumi KIKUCHI Kouki HATORI Yusuke ORII Keiichi SASAKI Yukyo TAKADA |
| author_facet | Masatoshi TAKAHASHI Masafumi KIKUCHI Kouki HATORI Yusuke ORII Keiichi SASAKI Yukyo TAKADA |
| author_sort | Masatoshi TAKAHASHI |
| collection | DOAJ |
| description | Ti-Ag alloys with 20 and 25 mass% Ag were prepared; their surfaces were polished using silicon carbide abrasive papers. The polished alloys were immersed in a simulated body fluid (SBF), and their surfaces were observed by scanning electron microscope (SEM) to investigate the spontaneous formation of calcium phosphates. The precipitates formed on the alloys were qualitatively and quantitatively analyzed using an electron probe microanalyzer (EPMA), with pure titanium and silver used as controls. Hardness and surface roughness, which was measured as the height parameter Ra, were examined, and their effect on calcium phosphate formation was elucidated. On immersion in SBF, calcium phosphates were formed on the Ti-Ag alloys and pure titanium but not on pure silver. The amount of the precipitate and the concentration ratios of calcium to phosphorus in the precipitates of the Ti-Ag alloys and pure titanium did not differ significantly. The Ti-Ag alloys showed significantly higher hardness and lower Ra values than pure titanium. The Ra values of the metals decreased as their hardness increased. The Ra values of the metals appeared to have very little effect on calcium phosphate formation. The results of this study have verified the biocompatibility of the Ti-Ag alloys, making them suitable for use as dental and orthopedic implants. |
| first_indexed | 2024-04-12T08:55:35Z |
| format | Article |
| id | doaj.art-f5d2a32b6ec842d1a82213f9253b61cb |
| institution | Directory Open Access Journal |
| issn | 1880-9863 |
| language | English |
| last_indexed | 2024-04-12T08:55:35Z |
| publishDate | 2009-07-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Journal of Biomechanical Science and Engineering |
| spelling | doaj.art-f5d2a32b6ec842d1a82213f9253b61cb2022-12-22T03:39:25ZengThe Japan Society of Mechanical EngineersJournal of Biomechanical Science and Engineering1880-98632009-07-014331832510.1299/jbse.4.318jbseCalcium Phosphate Formation on Ti-Ag Alloys in Simulated Body FluidMasatoshi TAKAHASHI0Masafumi KIKUCHI1Kouki HATORI2Yusuke ORII3Keiichi SASAKI4Yukyo TAKADA5Division of Dental Biomaterials, Tohoku University Graduate School of DentistryDivision of Dental Biomaterials, Tohoku University Graduate School of DentistryDivision of Advanced Prosthetic Dentistry, Tohoku University Graduate School of DentistryDivision of Advanced Prosthetic Dentistry, Tohoku University Graduate School of DentistryDivision of Advanced Prosthetic Dentistry, Tohoku University Graduate School of DentistryDivision of Dental Biomaterials, Tohoku University Graduate School of DentistryTi-Ag alloys with 20 and 25 mass% Ag were prepared; their surfaces were polished using silicon carbide abrasive papers. The polished alloys were immersed in a simulated body fluid (SBF), and their surfaces were observed by scanning electron microscope (SEM) to investigate the spontaneous formation of calcium phosphates. The precipitates formed on the alloys were qualitatively and quantitatively analyzed using an electron probe microanalyzer (EPMA), with pure titanium and silver used as controls. Hardness and surface roughness, which was measured as the height parameter Ra, were examined, and their effect on calcium phosphate formation was elucidated. On immersion in SBF, calcium phosphates were formed on the Ti-Ag alloys and pure titanium but not on pure silver. The amount of the precipitate and the concentration ratios of calcium to phosphorus in the precipitates of the Ti-Ag alloys and pure titanium did not differ significantly. The Ti-Ag alloys showed significantly higher hardness and lower Ra values than pure titanium. The Ra values of the metals decreased as their hardness increased. The Ra values of the metals appeared to have very little effect on calcium phosphate formation. The results of this study have verified the biocompatibility of the Ti-Ag alloys, making them suitable for use as dental and orthopedic implants.https://www.jstage.jst.go.jp/article/jbse/4/3/4_3_318/_pdf/-char/enbiomaterialtitanium alloycalcium phosphatesimulated body fluidbioconductivitybiocompatibilitydental implant |
| spellingShingle | Masatoshi TAKAHASHI Masafumi KIKUCHI Kouki HATORI Yusuke ORII Keiichi SASAKI Yukyo TAKADA Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid Journal of Biomechanical Science and Engineering biomaterial titanium alloy calcium phosphate simulated body fluid bioconductivity biocompatibility dental implant |
| title | Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid |
| title_full | Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid |
| title_fullStr | Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid |
| title_full_unstemmed | Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid |
| title_short | Calcium Phosphate Formation on Ti-Ag Alloys in Simulated Body Fluid |
| title_sort | calcium phosphate formation on ti ag alloys in simulated body fluid |
| topic | biomaterial titanium alloy calcium phosphate simulated body fluid bioconductivity biocompatibility dental implant |
| url | https://www.jstage.jst.go.jp/article/jbse/4/3/4_3_318/_pdf/-char/en |
| work_keys_str_mv | AT masatoshitakahashi calciumphosphateformationontiagalloysinsimulatedbodyfluid AT masafumikikuchi calciumphosphateformationontiagalloysinsimulatedbodyfluid AT koukihatori calciumphosphateformationontiagalloysinsimulatedbodyfluid AT yusukeorii calciumphosphateformationontiagalloysinsimulatedbodyfluid AT keiichisasaki calciumphosphateformationontiagalloysinsimulatedbodyfluid AT yukyotakada calciumphosphateformationontiagalloysinsimulatedbodyfluid |