Patent ID: 6402517
Filing Date: 2002-06-11
Classification: A61C,A61K

Abstract:
A method for producing an artificial tooth root with acid resistance and anti-adherence of contaminants and various germs, comprising a substrate and a coating of calcium phosphate based ceramic having bioaffinity formed on the surface of the substrate, wherein the substrate is composed of a polymer, ceramic, metal, or other material,the surface of the ceramic coating on the substrate surface is endowed with a protrusion-and-recession configuration, and a predetermined area of the ceramic coating surface, where a periodontal pocket is likely to occur, is chemically modified by a silane coupling agent, said method comprising the steps of forming a coating of calcium phosphate based ceramic having bioaffinity over the substrate while imparting protrusions and recessions thereto, masking an area of the ceramic coating surface of which bioaffinity is required by a material, and then fixing the silane coupling agent exclusively over a predetermined area of the ceramic coating surface, where a periodontal pocket is likely to occur.