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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"Tricalcium phosphate"”.
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Resorption rate tunable bioceramic: Si,Zn-modified tricalcium phosphate
… of bone remodeling. Silicon and Zinc modified tricalcium phosphate (Si,Zn-TCP), a biphasic material, was synthesized as a candidate for resorbable temporal bone implant having a controlled solubility and pharmaceutical effect to promote bone formation. From XRD and ICP analyses, it was shown …
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Effects of Tricalcium Phosphate Coated Titanium on Adjacent Early Bone Formation
… blasting techniques have been implemented. Tricalcium phosphate (TCP) is a coating that has been used for several years. Due to its porosity and likeness to natural bone, many feel that it is an ideal coating for both dental and orthopedic titanium implants. We believe that TCP coated …
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Fracture healing : the effects of local insulin delivery via calcium sulfate and tricalcium phosphate
… BB Wistar rat. Calcium sulfate and tn-calcium phosphate have osteoconductive properties that support bone growth. These materials served as carriers to provide continuous insulin release at the fracture site. The vehicles were evaluated for insulin content at days 2, 4 and 7 and normalized to …
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Synthesis And Characterization Of Nanocrystalline Hydroxyapatite Powder; And The Effects Of Oxide-based Sintering Additives On Tricalcium Phosphate
Calcium phosphate (CP) materials have been used extensively for bone replacement and augmentation due to their similarity to the mineral component of bone. In addition to being non-toxic, they are biocompatible, not recognized as foreign materials in vivo, and most importantly, exhibit …
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An investigation into the effects of two bioceramics on rat mandibular bone
… the effects of both dense hydroxyapatite and ß tricalcium phosphate on mandibular bone, in an attempt to offer guidelines for their use. The importance of these guidelines is that although both of these bioceramics have been used in clinical studies there are no established guidelines to …
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Production of phosphorus alloys through thermal reactions and electrochemical reduction of molten apatite
… it melts into two solid phosphorus rich phases, tricalcium phosphate and tetracalcium phosphate. Fluourapatite behaves in a similar manner, albeit at a higher temperature. These two calcium phosphates can be reduced to calcium oxide and oxygen in the presence of nickel, forming Ni₃P. Included in …
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Calcium Phosphate Powders for Biomedical Applications: Synthesis, Thermal Behavior and Non-Conventional Sintering
… on the synthesis of three different calcium phosphate powders with possible application as bioceramics, their chemical, structural and thermal characterization, and finally their consolidation into dense compounds by conventional and flash sintering techniques. In the first part, Mg-doped (0 …
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3D scaffolds for tissue engineering produced by microfabrication technology
… chitosan scaffolds filled with amorphous calcium phosphate (ACP) particles were also microfabricated, considering the possibility to take advantage of the osteoconductive character of ACP for bone tissue regeneration applications. The in-house built system utilizes highly accurate 3-D …
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Bacterial biofilms and biomineralisation on titanium
… plate-like crystals changed to nano-scale β-tricalcium phosphate particles. A phosphorous-rich diffusion zone formed at the coating-titanium interface. This biomineralised coating may have applications for coatings of implants in non load-bearing sites, and other non-clinical applications …
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Biomaterials for bone regeneration
… (HA)-based biomaterials for bone repair: calcium phosphate microspheres and bioactive silicate glass scaffolds. These biomaterials were prepared with modified compositions and microstructures and then were evaluated for bone regeneration.</p> <p>The open HA microspheres with dense convex surfaces …
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Development and assessment of calcium phosphate bone substitutes for orthopaedic applications
… a challenge. Porous scaffolds based on calcium phosphate (CaP) ceramics such as hydroxyapatite (HA) and (3-tricalcium phosphate (P-TCP) have potential in the treatment of injured and diseased bone.<br/><br/>Degradation of CaP’s in vivo occurs as a result of osteoclastic resorption and …
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Prospective Clinical Study with New Materials for Tissue Regeneration: A Study in Humans
… bone substitutes, consisting of biphasic calcium phosphate, in the ratio of 60% hydroxyapatite and 40% β-tricalcium phosphate, were applied in bony defects and covered by either a novel synthetic poly(lactic-co-glycolic) acid (PLGA) or porcine collagen membrane. A sample of 51 biomaterials was …
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In vitro bioactivities of anodised titanium in mixtrue of B-Glycerophosphate and calcium acetate for biomedical application
… foils were exposed in a mixture of β-glycerophosphate disodium salt pentahydrate (β-GP) and calcium acetate monohydrate (CA). The parameters for anodic oxidation method such as applied voltage (50-350 V), current density(10-70 mA.cm-2), electrolyte concentration (0.02 M β-GP + 0.2 M CA, 0.04 …
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Spray Drying of Soymilk
… spray dried soymilk from oxidative rancidity. Tricalcium phosphate was incorporated in dried soymilk to increase the calcium content of soymilk products to an equivalent level in cow's milk powder. This process results in a high quality soymilk powder which, when reconstituted, had very little …
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Production of hard tissue scaffolds using three-dimensional printing method
… scaffold geometries from biocompatible calcium phosphate based materials. Initial investigations with the proprietary materials showed that predicted directional mechanical behaviour can be realised. Practical measurements investigating the directional mechanical properties of the manufactured …
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Preosteoblast Behavior on a Synthetic Calcium Phosphate Scaffold Coated with Cell Derived Matrix
… and allografts currently used. Calcium phosphate (CaP) materials offer high biocompatibility and chemical similarity to natural bone tissue. Biodegradable beta-tricalcium phosphate (β-TCP) scaffolds with an interconnected porous network have been created to promote tissue ingrowth and …
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The effect of filler on the mechanical properties of a novel resin-based calcium phosphate cement
… have found that resin-based amorphous calcium phosphate (ACP) composites can function well for applications that do not require high mechanical demand. Milled tricalcium phosphate (TCP), a new calcium-phosphate-releasing material, is crystalline in nature, suggesting it to be strong. In the …
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Engineered [beta]TCP-binding HER-family protein fusions and their use for improving osteoprogenitor- mediated bone regeneration
… onto a graftable, osteoconductive matrix, beta-tricalcium phosphate ([beta]TCP). Due to the lack functional groups for bioconjugation on the [beta]TCP surface, the tethering strategy involved the use of a high-affinity [beta]TCP binding peptide fused to the EGF domain. This broadly-applicable …
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The ion release behaviours and water sorption of novel resin-based calcium phosphate cement
Calcium phosphate-filled restorative materials were developed to provide calcium (Ca) and phosphate (PO4) ions, which have been proposed to enhance remineralization of demineralized tooth structure. Recently, tricalcium phosphate (TCP)-filled restorative materials were introduced as an alternative …
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Histologic evaluation of calcium phosphate coated endosseous implants prepared by spark discharge oxidation : a long-term study in the sheep
… in type-1-implants, biphasic calcium phosphate (B-CaP, i.e. 70% tricalcium phosphate to 30% HA) in type-2-implants, and the post oxidation applied pure HA in type-3-implants. Two conventional surface designs produced by titanium- (type 4) and HA-plasma-spraying (type 5) served as …
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