Method for the preparation of surfaces of dental or orthopedic implants
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United States of America Patent
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Apr 12, 2016
Grant Date -
Mar 19, 2015
app pub date -
Sep 15, 2014
filing date -
Sep 13, 2013
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Abstract
A method for the surface preparation of devices made of titanium or titanium alloys, zirconium, zirconia, alumina or zirconia/alumina compounds, stainless steels and cobalt-base superalloys for medical use; the devices being implantable in the human body or in animals and attached extracorporeal parts made with the same materials, particularly for dental and orthopedic implantology. The implantable device is treated by exposing at least one portion of the surface of the device to a solution including hydrofluoric acid, phosphoric acid, at least one surfactant substance and water; for a time period and in conditions sufficient to provide the surface of the implant with the desired surface roughness and the formation of self-induced surface titanium dioxide, maintaining the structural integrity of the device and without altering the centesimal measurement size. The surface thus is rinsed with demineralized water and ultrasounds in order to prevent metalosis phenomena.
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