Artificial bone and dental root with sintered apatite and method of producing same

Abstract

Abstract Disclosed is an orthopedic and dental implant ceramic composition comprising hydroxyapatite and whitlockite. Said composition is prepared by blending 50 to 99.5% by weight of a crystalline hydroxyapatite and 0.5 to 50% by weight of whitlockite, and then, sintering the blend at a temperature of 900 DEG to 1,400 DEG C. Said crystalline hydroxyapatite is prepared by the solid phase reaction wherein a mixture of a calcium phosphate, having a Ca/P ratio of 1.5 to 1.67 by mole, and a stoichiometric amount or more of a calcium compound is heated at a temperature of 500 DEG to 1,000 DEG C. Said calcium compound is at least one compound selected from the group consisting of CaCO3, CaO, Ca(OH)2, CaF2, Ca(COO)2, Ca(NO3)2 and CaCl2.

Inventors

• 👤 Hideki Aoki
• 👤 Kazuo Katou
• 👤 Tsuneo Tabata
• 👤 Makoto Ogiso

Bibliographic Details