Method for preparing a biomaterial based on hydroxyapatite, resulting biomaterial and surgical or dental use
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United States of America Patent
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Feb 18, 2003
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N/A
app pub date -
Jan 11, 2000
filing date -
Mar 20, 1998
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Expired
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Abstract
A solid powder product with a Ca/P ratio of between 1.40 and 1.90 is prepared from tricalcium phosphate and tetracalcium phosphate. An aqueous solution containing calcium ions and phosphate ions with a Ca/P ratio higher than 0.20 and lower than 0.50 is prepared. The aqueous solution and the solid powder product and optionally water are mixed to obtain a mixture with a liquid/solid weight ratio of between 0.30 and 0.65 and a resulting paste with a Ca/P ratio of between 1.50 and 1.67.
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