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J Prosthodont. 2009 Feb;18(2):130-4. doi: 10.1111/j.1532-849X.2008.00391.x. Epub 2008 Nov 18.

Influence of a fluoridated medium with different pHs on commercially pure titanium-based implants.

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Department of Periodontology, School of Dentistry at Araraquara, UNESP, Sao Paulo State University, Sao Paulo, Brazil.



The objective of this study was to assess the influence of a fluoride medium with different pHs on the corrosion resistance of three commercially pure titanium-based dental implant commercial brands, under scanning electron microscopy (SEM) and EDS.


Forty-two dental implants, from three commercial brands, were used. Five years of regular use of mouth rinsing, with NaF 1500 ppm content and two different pHs, were simulated by immersing the specimens into that medium for 184 hours.


SEM and EDS analyses demonstrated no evidence of corrosion on the specimens' surfaces after being submitted to fluoride ions or incorporation of fluoride ions to the set surface.


It was possible to conclude that both the fluoride concentration and the pH of the solutions did not exert any influence upon implant corrosion resistance.

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