Calcium phosphate cements made from (TTCP) with surface whiskers and process for preparing same
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United States of America Patent
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Feb 27, 2007
Grant Date -
Dec 15, 2005
app pub date -
May 19, 2005
filing date -
Jul 13, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A tetracalcium phosphate (TTCP) particle for use in preparing a fast-setting, bioresorbable calcium phosphate cement is disclosed. The TTCP particle has a basic calcium phosphate whiskers on a surface thereof; the basic calcium phosphate whiskers having a Ca/P molar ratio greater than 1.33, and having a length up to about 5000 nm and a width up to about 500 nm. The basic calcium phosphate whiskers are substantially free of a hydroxyapatite phase and mainly composed of TTCP phase.
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