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Microcrack accumulation at different intervals during fatigue testing of compact bone.

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Fatigue damage in bone occurs in the form of microcracks. This microdamage contributes to the formation of stress fractures and acts as a stimulus for bone remodelling. A technique has been developed, which allows microcrack growth to be monitored during the course of a fatigue test by the

Flow intrusion characteristics and fracture properties of titanium-fibre-reinforced bone cement.

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Two clinically relevant considerations for a new bone cement are its fracture properties and flow intrusion characteristics. We present data for a titanium-fibre-reinforced poly(methyl methacrylate) (Ti-PMMA). The fracture properties presented are a concise review of previously published material,

The effect of staining on the monotonic tensile mechanical properties of human cortical bone.

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Microdamage in the form of microcracks has been observed in cortical bone following in vivo and in vitro fatigue loading. It has been suggested that bone has an inherent ability to repair microdamage at physiological activity levels. If the biological remodelling and repair process cannot keep up

Antagonism of cysteinyl leukot-riene receptor 1 (cysLT1R) by montelukast regulates differentiation of MC3T3-E1 cells under overloaded mechanical environment.

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Long-term exposure to overloaded mechanical environment induces bone fatigue damage symptoms and osteoblast damages. Montelukast is a selective cysteinyl leukot-riene receptor 1 (cysLT1R) antagonist, which has been used for the treatment of bronchial asthma in clinics. In the current study, we have

Detecting microdamage in bone.

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Fatigue-induced microdamage in bone contributes to stress and fragility fractures and acts as a stimulus for bone remodelling. Detecting such microdamage is difficult as pre-existing microdamage sustained in vivo must be differentiated from artefactual damage incurred during specimen preparation.

An improved labelling technique for monitoring microcrack growth in compact bone.

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Fatigue-induced damage plays an important role in bone remodelling and in the formation of stress and fragility fractures. Recently, a technique has been developed (Lee, T.C. et al., Sequential labelling of microdamage in bone using chelating agents. Journal of Orthopedic Research, 18 (2000)

In vitro analysis and mechanical properties of twin screw extruded single-layered and coextruded multilayered poly(caprolactone) scaffolds seeded with human fetal osteoblasts for bone tissue engineering.

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In vitro culturing and mechanical properties of three types of three-dimensional poly(caprolactone) scaffolds with interconnecting open-foam networks are reported. The scaffolds targeted bone tissue regeneration and were fabricated using twin screw extrusion and coextrusion techniques, for

Use of an Osteoblast Overload Damage Model to Probe the Effect of Icariin on the Proliferation, Differentiation and Mineralization of MC3T3-E1 Cells through the Wnt/β-Catenin Signalling Pathway.

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OBJECTIVE Mechanical loading plays an important role in the regulation of bone mass. However, bone cells are not always under physiological stress. In some cases, bone tissue is subjected to an overloaded mechanical environment. For example, a person who is weight training and a stevedore often

Surface modification of multipass caliber-rolled Ti alloy with dexamethasone-loaded graphene for dental applications.

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Titanium (Ti) and its alloys with a high mechanical strength and a small diameter can be effectively exploited for minimally invasive dental implantation. Here, we report a multipass caliber-rolled Ti alloy of Ti13Nb13Zr (MPCR-TNZ) with a high mechanical strength and strong fatigue characteristics.

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