The Role of Lipopolysaccharide on the Electrochemical Behavior of Titanium

Abstract

C(dl), capacitance of double layer; E(corr), corrosion potential; EIS, electrochemical impedance spectroscopy; I(corr), corrosion current density; I(pass), passivation current density; LPS, lipopolysaccharide; OCP, open circuit potential; R(p), polarization resistance; Ti, titanium.

The role of nicotine, cotinine and caffeine on the electrochemical behavior and bacterial colonization to cp-Ti

“…Titanium and its alloy have been used for dental implant due to their good strength, corrosion resistance, and biocompatibility [13][14][15][16]. Nevertheless, the complex oral environment can potentially damage the longevity of dental implants due to the presence of chemical, microbial and physical agents such as saliva, acid, fluoride, bacteria and mastication load [13,17,18].…”

“…Additionally, although attention has been closely paid to the adverse result of nicotine on the bone healing [26,27]; and the effect of saliva, fluoride, human plasma, osteoclast, biofilm and lipopolysaccharide on the corrosion behavior of titanium [13,14,[28][29][30], to the best of the authors' knowledge, there have been no study to date that have evaluated the influence of smoking compounds and caffeine on the electrochemical stability of titanium.…”

Fundamentals of Linking Tribology and Corrosion (Tribocorrosion) for Medical Applications: Bio-tribocorrosion

“…It provides an integrated protocol to study the material degradation mechanisms as mechanical movements combined with environmental effects. For example, a dental implant is exposed to a constantly changing oral environment, which due to the patient's diet can have sudden changes in pH levels [33,34]. Additionally, mechanical movements of the mouth play a role during the mastication process (2,000 mastication cycles/day) [3].…”

“…Numerous studies have attempted to investigate the chemical corrosion of titanium surfaces [33,34,[51][52][53][56][57][58][59][60][61][62][63][64]; however, very few have reported on the effect of combined chemical and mechanical actions, which resemble the clinical oral environment [3]. Vieira et al (2006) [30] investigated the tribocorrosion behavior of commercially pure titanium in contact of artificial saliva with different levels of pH (3.8, presence of citric acid, and 5.5) and the presence of inhibitors included in the content of tooth-cleaning agents or medicines (sodium nitrite, anodic inhibitor; calcium carbonate, cathodic inhibitor; and benzotriazole, organic inhibitor).…”

“…Into the peri-implant area, this endotoxin can promote inflammation with consequent influence in the implant prognosis [73]. Our previous study [33] showed that different concentrations of LPS increased the corrosion kinetics of commercially pure titanium in a simulated oral environment containing saliva with different levels of pH.…”