Corrosion behavior of titanium wires: an in vitro study
Thakur Prasad Chaturvedi1, Ram Sagar Dubey
1Department of Orthodontics, IMS, BHU, Varanasi, UP, India.
Summary
Titanium wires corrode in toothpaste and chocolate solutions. Electrochemical studies revealed pitting and localized attacks, indicating degradation in oral environments.
Area of Science:
- Materials Science
- Electrochemistry
- Biomaterials
Background:
- Oral environments pose significant physical and chemical challenges to dental materials.
- Metallic dental appliances are susceptible to corrosion, influenced by surrounding liquids and solids.
Purpose of the Study:
- To investigate the in vitro corrosion behavior of titanium wires.
- To assess titanium wire degradation when immersed in artificial saliva containing toothpaste and chocolate.
Main Methods:
- Immersion testing and electrochemical studies were performed on titanium wires.
- Key electrochemical parameters such as corrosion potential (E corr) and corrosion current (I corr) were measured.
- Surface analysis using photomicrography documented corrosion-induced changes.
Main Results:
- Titanium wires exhibited electrochemical degradation in the tested oral fluid simulants.
- Surface analysis revealed pitting and localized corrosion on the titanium wires.
- Pitting corrosion was identified as a primary mode of degradation.
Conclusions:
- Titanium wires are susceptible to pitting corrosion in artificial saliva containing common oral consumables like toothpaste and chocolate.
- The findings highlight the potential for degradation of titanium-based dental materials in the oral cavity.
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