Patent ID: 7682445

Claim:
A powdered composition forming a chemically bonded ceramic biomaterial on hydration thereof, comprising (a) an alkaline component comprised of a material selected from the group consisting of calcium-aluminates, calcium-silicates and combinations thereof and forming a chemically bonded ceramic material, an initial pH of ≧10, on hydration thereof, and further comprising (b) a solid buffering salt of a mono-, di-, tri- or tetravalent mineral acid in an amount of 3-30% by volume further comprising an ingredient selected from the group consisting of pH sensitive drugs and/or bone growth promoting agents, prophylactically and/or diagnostically active agents to be released subsequently by the chemically bound ceramic biomaterial in vivo, therapeutic agents for pain relief, anesthetics, anti-infective agents and anti-inflammatory drugs, drugs for treatment of immunological disorders, hormonal disruption, clotting behavior, cancer, and combinations thereof.