Method for producing endosseous implants
AssigneeSumitomo Chemical Company, Limited
InventorsMasaaki Hama, Keiichirou Watanabe, Hiroshi Ishimaru
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Abstract
An improved method for producing endosseous implants by thermally spraying a ceramic material onto the surface of a metallic core material having a rough surface, i.e. a maximum surface roughness of 15 to 100 .mu.m, which can produce implants which have excellent characteristics in regard to the metallic material and ceramic material and do not dissolve out harmful metal ions. The endosseous implants are useful for implantation in various bones including tooth roots and joints in living bodies.
Claims8
A method for producing an endosseous implant which comprises:
- thermally spraying titanium hydride onto a surface of a metallic core material to make the surface of the metallic core material rough to a maximum surface roughness of 15 to 100 .mu.m;
- and then thermally spraying a ceramic material onto the roughened surface.
A method for producing an endosseous implant which comprises:
- blasting a surface of a metallic core material selected from the group consisting of titanium and a titanium alloy;
- thermally spraying titanium hydride having a particle size of 10 to 100 .mu.m onto the surface of the blasted metallic core material to make the surface of the core material rough to a maximum surface roughness of 15 to 100 .mu.m;
- and thermally spraying a ceramic material selected from the group consisting of alumina, hydroxyapatite and a mixture of alumina and hydroxyapatite onto the surface of the resulting core material, thereby forming a layer of the ceramic material of 10 to 200 .mu.m in thickness on the surface.
A method for producing an endosseous implant which comprises:
- thermally spraying titanium hydride onto a surface of a metallic core material to make the surface of the metallic core material rough to a maximum surface roughness of 15 to 100 .mu.m;
- and then thermally spraying a ceramic material onto the roughened surface without using any bonding agent which contains toxic metal ions.
Dependencies are inferred from the claim text.