Calcium phosphate type hardening material for repairing living hard tissue

摘要

Hardening materials are provided which show excellent kneading-processability and uniform filling property of their pastes and are controlable to moderate setting time. In addition, the pH of the neighborhood of the filled part immediately after filling into living body lies in a weakly basic region, and the materials are able to integrate into living hard tissue. The materials are made by combining a powder component containing at least tetracalcium phosphate and calcium hydrogen phosphate with a liquid component containing secondary phosphate and organic acid ions.