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Demineralized bone matrix (DBM) is allograft bone that has had the inorganic mineral removed, leaving behind the organic "collagen" matrix. It was first discovered by Marshall Urist in 1965 that the removal of the bone mineral exposes more biologically active bone morphogenetic proteins . [ 1 ]
A major stumbling block to purification was the insolubility of demineralized bone matrix. To overcome this hurdle, Hari Reddi and Kuber Sampath used dissociative extractants, such as 4M guanidine HCL, 8M urea, or 1% SDS. [30] The soluble extract alone or the insoluble residues alone were incapable of new bone induction.
Gerald Miles Bowers (born September 10, 1928) is an American periodontist known for research and contributions to the field of regenerative therapy in periodontics. He and his colleagues demonstrated for the first time conclusive histologic evidence that demineralized bone matrix used as a bone graft supports periodontal regeneration in humans.
Bone grafting is a surgical procedure that replaces missing bone in order to repair bone fractures that are extremely complex, pose a significant health risk to the patient, or fail to heal properly. Some small or acute fractures can be cured without bone grafting, but the risk is greater for large fractures like compound fractures.
A leading manufacturer of artificial hips and knees agreed to pay the state of Massachusetts $1.35 million to resolve allegations that it marketed orthopedic devices without regulatory approval ...
Demineralized freeze dried bone allograft, referred to as DFDBA, is a bone graft material known for its de novo bone formation properties. [1] It is used extensively in bone grafting of alveolar bone in oral and periodontal surgery.
In contrast, osteopromotive substances will not contribute to de novo bone growth but serve to enhance the osteoinductivity of osteoinductive materials. An example of this is enamel matrix derivative, which serves to enhance the osteoinductive nature of demineralized freeze dried bone allograft (DFDBA). [1]
Stryker's reagent ([(PPh 3)CuH] 6), [1] also known as the Osborn complex, is a hexameric copper hydride ligated with triphenylphosphine. It is a brick red, air-sensitive solid. Stryker's reagent is a mildly hydridic reagent, used in homogeneous catalysis of conjugate reduction reactions of enones, enoates, and related substrates.