Fluoride treatment of hydroxyapatite coated metal implants
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United States of America Patent
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Aug 13, 1991
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N/A
app pub date -
Feb 5, 1990
filing date -
Feb 5, 1990
priority date (Note) -
Expired
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Abstract
A method for decreasing the dissolution rate of a hydroxyapatite coating or other calcium phosphate coating formed on a metal substrate by treating the coated metal substrate in a fluoride ion containing solution. The effective reagents for fluoride treatment can be any solution which supplies fluoride ion with the suitable pH of the solution being 3 or higher, preferably 5 or higher. The treatment enhances the stability of the coating strength.
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