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Influence of fluoride, hydrogen peroxide and lactic acid on the corrosion resistance of commercially pure titanium

Paper ID Volume ID Publish Year Pages File Format Full-Text
2656 121 2006 9 PDF Available
Title
Influence of fluoride, hydrogen peroxide and lactic acid on the corrosion resistance of commercially pure titanium
Abstract

Titanium is widely used in dental implantology and orthopaedics due to its excellent corrosion resistance and mechanical properties. However, it has been reported that Ti is sensitive to F−, H2O2 and lactic acid. Atomic force microscopy (AFM) and scanning electron microscopy (SEM) were used to investigate the corrosion resistance of CP-Ti disks after 9 days immersion in different test solutions, based on artificial saliva containing F− (0.5% and 2.5%), H2O2 (0.1% and 10%) and/or lactic acid. Because activated macrophages and bacteria can also release locally some of these oxidative compounds, we investigated the role of these cells when plated onto titanium disks. The surface roughness (Ra) was highly increased when titanium disks were immersed in artificial saliva containing F−, H2O2 and lactic acid. After 21 days of cell culture, Ra was significantly increased on disks incubated with activated-J774.2 cells or Streptococcus mitis. AFM appeared to be more sensitive than SEM in evaluating the corrosion of the titanium. Chemical species, either environmental or those released by macrophages and bacteria, can provoke a marked attack of the titanium surface.

Keywords
Titanium; Corrosion; Fluoride; Hydrogen peroxide; Lactic acid
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Influence of fluoride, hydrogen peroxide and lactic acid on the corrosion resistance of commercially pure titanium
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Publisher
Database: Elsevier - ScienceDirect
Journal: Acta Biomaterialia - Volume 2, Issue 1, January 2006, Pages 121–129
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us