SURFACE MODIFICATION OF INORGANIC BIO-COMPATIBLE MATERIAL

摘要

PURPOSE:To enhance bio-compatibility, by treating an inorg. bio-compatible material containing CaO and P2O5 with an aqueous solution containing calcium or phosphoric acid to precipitate a calcium phosphate crystal on the surface of said material. CONSTITUTION:An inorg. bio-compatible material containing CaO and P2O5 such as crystallized glass or composite crystallized glass is treated with an aqueous solution containing calcium or phosphoric acid at 10-200 deg.C to precipitate a calcium phosphate crystal on the surface of said material. Since the calcium phosphate crystal necessary for chemically bonding to a bone can be precipitated on the entire surface of the inorg. bio-compatible material by this method, the bio-compatibility of the material for an artificial bone or dental root can be further enhanced.