ISSN:
1013-9826
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
We have developed a new Ti alloy, Ti-15%Zr-4%Nb-4%Ta alloy (Ti-15-4-4) that showedhigher biological safety and mechanical properties than the currently used Ti-6%Al-4%V alloy. Thepurpose of this study is to determine the biological performance of the new alloy. Ti-15-4-4implants (machined or blasted) were placed in surgically created defects in rabbit femurs. Therabbits were sacrificed after 4, 8, 16, 24 and 48 weeks. Bone mineral density (BMD) and area ofnewly formed bone around the implants were measured using micro-CT. Results showed that theTi-15-4-4 alloy is biocompatible and forms new bone around the Ti-15-4-4 implant, regardless ofthe surface treatment. The BMD and area of newly formed bone around the blasted implantsurfaces were significantly greater than those around the machined surfaces. These results indicatethat the new Ti-15-4-4 alloy has a potential for use as implants and has the advantage of improvedmechanical properties described in earlier studies
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/56/transtech_doi~10.4028%252Fwww.scientific.net%252FKEM.361-363.661.pdf
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