Calcium Phosphate Precipitation by Galvanic Current between Titanium and Gold in Pseudo-Body Fluid

Equo Kobayashi; Masa Ogo; Hisashi Doi; T. Yoneyama; K. Noda; Takao Hanawa

doi:10.4028/www.scientific.net/MSF.539-543.653

Paper Titles

Common Features on Damage Mechanisms Identified on Various Metal and Ceramic on Polyethylene Articulating Surfaces of Total Hip Prostheses
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Mechanical Properties and Biocompatibility of Porous Titanium Prepared by Powder Sintering
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Receptor-Mediated Gene Delivery Using Chitosan Derivatives In Vitro and In Vivo
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Microstructures and Mechanical Properties of Biologically-Inspired Ti-Nb Based Alloys with Ternary Element Additions
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Calcium Phosphate Precipitation by Galvanic Current between Titanium and Gold in Pseudo-Body Fluid
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Preparation and Characterization of Octyl Methoxy Cinnamate (OMC; 2-Ethylhexyl-p-Methoxy Cinnamate)-Trapped Mesoporous Silica Using Lecithin
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Different Processing Methods to Obtain Porous Structure in Shape Memory Polymers
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Carbon Nanotubes Grown by Catalytic CVD on Silicon Based Substrates for Electronics Applications
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Variation in Bone Quality during Regenerative Process
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Calcium Phosphate Precipitation by Galvanic Current between Titanium and Gold in Pseudo-Body Fluid

Abstract:

For commercialized dental implants, to enhance the bone bonding of the artificial tooth roots, several kinds of surface modification techniques, such as hydroxy-apatite coating, anodic oxidation and sand-blasting, have been developed. Apart from the surface modification, it is known that the bone growth is accelerated by electric stimulations in the living body. In the present study, the galvanic current between titanium substrate and gold coating partially on the titanium implants was applied to enhance calcium phosphate precipitation in a pseudo-body fluid namely Hanks’ solution. The galvanic current between titanium specimens and gold electrode jumped up approximately 0.2 s after put into Hanks’ solution and the current has decreased asymptotically. With such consideration, the desirable conditions of surface modification by gold coating were presented to provide suitable galvanic current density enhancing calcium phosphate precipitation.