The Effect of Microporous Structure on Bone-Bonding Ability of Titanium

Y. Cao; Li Ping Wang; Bo Zhang; Qiang Lin; Xu Dong Li; C.Y. Bao; Ji Yong Chen; L. Yang; Xing Dong Zhang

doi:10.4028/www.scientific.net/KEM.284-286.211

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Crystallization of Sputtered Hydroxyapatite Films by Hydrothermal Technique and Its Cytotoxicity
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Chemical and Morphological Properties of Calcium Phosphate Coatings Deposited Using the Electrostatic Spray Deposition (ESD) Technique
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Preparation of Bioactive Coatings on the Surface of Bioinert Polymers through an Innovative Auto-Catalytic Electroless Route
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Biphasic and Preferentially Oriented Microcrystalline Calcium Phosphate Coatings: In Vitro and In Vivo Studies
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The Effect of Microporous Structure on Bone-Bonding Ability of Titanium
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Solution Deposition of Hydroxyapatite on a Highly Porous Titanium Surface Enhances Osseointegration
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Biomechanical and Histomorphometric Study of the Bone-Screw Interface of Calcium Pyrophosphate Coated Titanium Screws
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A Fast Biomimetic Method for Nanocrystalline Hydroxyapatite Coatings
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Ultra-Structural Study of the Laminin-Apatite Composite Layer Formed on Ethylene-Vinyl Alcohol Copolymer by a Biomimetic Process
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The Effect of Microporous Structure on Bone-Bonding Ability of Titanium

Abstract:

The three different structures of titanium oxide film were prepared: (1) The commercial pure titanium was treated with heating in air at 700°C for half hour and gotten a dense rutile film on titanium (HS Samples); (2) The commercial pure titanium was treated by chemically treating and gotten a layer of amorphous titania gel on the Ti surface (TS Samples); (3) After chemically treating, the samples were heated in air at 700 °C for half hour, and gotten nano-particles coalesced microporous titanium oxide (rutile) film on titanium surface (XS sample). The dense rutile and amorphous titania gel did not induce apatite formation on their surfaces in SBF solution for 48 hours, whereas the nano-particles coalesced microporous rutile structure induced apatite formation on their surfaces. Mechanical test and histological examination were investigated after the samples implanted in dogs limbs for 3 months. The results of push-out test are 12.96, 29.48 and 35.83 MPa respectively for HS, TS and XS sample. Histological results showed that TS sample and XS sample contacted the bone directly, without any intervening fibrous tissue, and there was a fibrous tissue layer between the bone and HS samples.