Rapid-hardening calcium phosphate cement compositions

Rapid-hardening calcium phosphate cement compositions
Patent number: US2005074415
Publication date: 2005-04-07
Inventor: CHOW LAURENCE C (US); TAKAGI SHOZO (US)
Applicant: ADA FOUNDATION (US)
Classification:
- international: C01B25/32; A61K7/16; A61K33/42
- european: A61K6/00D; A61K6/033; A61K6/097; A61L24/02; A61L27/12; C04B28/34; C04B28/34H
Application number: US20040941443 20040915
Priority number(s): US20020057554 20020123; US20010263894P 20010124; US20040536899P 20040116; US20040941443 20040915
Abstract of US2005074415

A bone or dental implant material in the form of a paste includes a mixture of calcium phosphate and/or calcium-containing powders and a solution that is (1) an acidic calcium phosphate solution saturated with respect to one or more calcium phosphate compounds, (2) a concentrated acid solution, or (3) salt solutions with a cationic component other than calcium. The paste is stable, resistant to washout and will form hydroxyapatite and harden relatively rapidly to a cement.