Nanostructured hydroxyapatite coating for dental and orthopedic implants
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United States of America Patent
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Jun 20, 2017
Grant Date -
Nov 1, 2012
app pub date -
Aug 20, 2010
filing date -
Aug 21, 2009
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Abstract
A high-strength coating for dental and orthopedic implants utilizing hydroxyapatite (HAp) nanoparticles provides for a high level of osseointegration through a range of surface pore sizes in the micro- to nanoscale. Zinc oxide (ZnO) nanoparticles may be incorporated with the HAp nanoparticles to form a composite coating material, with ZnO providing infection resistance due to its inherent antimicrobial properties. A textured surface, consisting of “islands” of roughly square coating structures measuring about 250 μm on a side, with spacing of 50-100 μm therebetween, may further promote the osseointegration and antimicrobial properties of the implant coating.
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