I will provide an artificial bone that approximates the mechanical properties of living bone and easy to bond with living bone. The dense portion of the 95% density to form a frame shape made of titanium or a titanium alloy, approximate to a portion of the outer surface of the living bone, the particles of titanium alloy having a composition the same as or different from the titanium or titanium alloy has been sintered together be made, and a porosity of more than 40% porosity a shape which approximates to the remainder of the living bone, the particles of the porous portion and the dense portion is sintered together at the interface between the porous portion and the dense portion I is characterized.生体骨と結合しやすく且つ生体骨の機械的性質に近似した人工骨を提供する。チタン又はチタン合金からなり、生体骨の外面の一部に近似した枠状をなす密度95%以上の緻密部と、互いに焼結したチタン又は前記チタン合金と同一もしくは異なる組成のチタン合金の粒子からなり、前記生体骨の残部に近似した形状をなす気孔率40%以上の多孔部とを備え、緻密部と多孔部との界面において緻密部と多孔部の粒子とが互いに焼結していることを特徴とする。
