Papers by Keyword: Combined Artificial Bone

Abstract: Every year, roughly two million patients worldwide sustain a bone grafting procedure to repair bone defects stemming from tumor, the wound, the infection, as well as other reasons [1, 2]. The bone transplantation is one of main methods to treat bone damages [3]. The gold standard is to use autologous bone or autograft [4]. However, both the need of the second surgery and morbidity at the extraction site [5-7] has been an incentive to search for alternative treatment. One of them is to form bone graft bone. Many materials have been widely chosen to form bone graft substitutes: metals, polymers, ceramics, dehydrate, and calcium phosphates [8-13]. Although these synthetic materials provide an immediate solution for many patients, their long-term performance is generally not satisfactory. This is often due to a mechanical property mismatch between the implant failure and tissue damage [14, 15]. The development of combined artificial bone with improved mechanical properties and enhanced biocompatibility calls for a biomimetic approach using natural bone as a guide.

Abstract: In this paper, the combined artificial bone made from α- calcium sulphate hemihydrate（α-CSH） and β- tricalcium phosphate (β-TCP) was investigated and at the same time the study explored: the method of preparing the combined artificial bone. Scanning electron microscopy (SEM), Powder X-ray diffraction (XRD), Thermogravimetric (TG), Differential scanning calorimetry (DSC), and Mercury porosimeter were employed to characterize the samples. Results indicate that the combined artificial bone can be prepared by α-CSH and β-TCP using dehydrated alcohol as a solvent; β-TCP was made from cancellous bone in the femur of cattle under special conditions, which contained the spatial structure of normal cancellous bone; α-CSH was made from CSD under special temperature and pressure, which is more pure and regulation in crystal form.