Medical material, artificial tooth root, and method of producing medical material

An artificial tooth root, comprising;

• a substrate;
• a metal fiber layer composed of a non woven fabric formed by intertwining metal wires in a periphery of the substrate and vacuum-sintering method;
• and
• a periodontal membrane forming layer composed of a porous biodegradative absorptive polymer provided in a periphery of the metal fiber layer;
• wherein the periodontal membrane forming layer has a honeycomb structure with a through hole of a diameter 100 to 400 μm in a membrane surface.

A method for producing a medical material, comprising

• heating a three dimensional structure composed of titanium or titanium alloy in a temperature range of 400 to 800 degree until a surface turns into purple;
• immersing a heated three dimensional structure in hydroxyapatite formation liquid containing phosphoricacid acid for forming a coating of a hydroxyapatite uniformly containing hydroxyapatite or apatite carbonate from an interior surface to an exterior surface of the three dimensional structure;
• drying an immersed three dimensional structure;
• and
• heating a dried three dimensional structure in a temperature range of 500 to 1500 for sintering the a crystal of hydroxyapatite of the coating and forming a ceramic coating from an interior surface to an exterior surface of the three dimensional structure.