Hardening material for medical and dental use
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United States of America Patent
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Aug 24, 1993
Grant Date -
N/A
app pub date -
Mar 21, 1990
filing date -
Jul 23, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
This invention relates to a hardening material for medical and dental use which is composed of a powder of calcium phosphate and a hardening liquid. A subject of the present invention is to provide a hardening material wherein a calcified hard tissue analogous to body hard tissue capable of making chemically a sufficient bond with body hard tissue is formed in a body within relatively short time passage. To attain the above-described objective, the hardening material for medical and dental use relating to the present invention is composed of a calcium phosphate powder and a hardening liquid and also of at least either one of collagen and/or collagen derivatives in a state of powder or solution, and the calcium phosphate powder contains a powder of .alpha.-tricalcium phosphate [.alpha.-Ca.sub.3 (PO.sub.4).sub.2 ]and/or tetracalcium phosphate [Ca.sub.4 (PO.sub.4).sub.2 O] as an essential component and the hardening liquid comprises at least one acid selected from inorganic acids and acetic acid.
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