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- Title
Enhancement of apatite formation on Ti-50Zr alloy in simulated body environment.
- Authors
Toshiki MIYAZAKI; Shunsuke OTA; Jin NAKAMURA
- Abstract
Ti-50Zr alloy is 2.5 times as strong as pure Ti and has a lower Young's modulus, making it a useful material for repairing bone and teeth. However, Ti-50Zr alloy has a limited ability to bond with bone in vivo. Under biological conditions, apatite formation at the surface of a Ti or alloy implant is necessary for its bonding with bone. Various approaches to surface modification have been proposed to impart bone-bonding ability to Ti-50Zr alloy; however, there remains a need for further improvements to the alloy's apatiteforming ability. Hence, in this study, we compared apatite formation at the surface of alloy substrates in simulated body fluid, after various surface treatments. Treatment with 5 M NaOH followed by 1 M CaCl2 was the most effective procedure, whereas a sample subjected to a hot water post-treatment formed less apatite. Notably, no apatite formed on samples treated with 10 M NaOH.
- Subjects
APATITE; ALLOYS; YOUNG'S modulus; HOT water
- Publication
Dental Materials Journal, 2023, Vol 42, Issue 3, p390
- ISSN
0287-4547
- Publication type
Article
- DOI
10.4012/dmj.2022-226