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Biodegradation of restorative metallic systems
1Department of Biomedical Engineering, University of Alabama, Birmingham 35294.
Advances in Dental Research
|September 1, 1992
Summary
Dental metallic restorations, including pure metals and alloys, undergo corrosion and biodegradation. Their properties depend on composition, surface, function, and the host environment, with a focus on corrosion susceptibility.
Area of Science:
- Biomaterials science
- Dental materials science
- Corrosion science
Background:
- Metallic materials are crucial for intra-oral and implant dental restorations.
- These materials include pure metals and multicomponent alloys.
- Understanding their corrosion and biodegradation is vital for clinical success.
Purpose of the Study:
- To present the susceptibility of metallic dental materials to biodegradation.
- To emphasize the role of corrosion in the degradation of these materials.
- To discuss factors influencing the properties of metallic dental restorations.
Main Methods:
- Review of in vitro and in vivo studies on metallic dental materials.
- Analysis of corrosion and biodegradation properties.
- Evaluation of influencing factors such as composition, metallurgical state, surface conditions, and host environment.
Main Results:
- Metallic restoration properties are influenced by composition, metallurgical state, and surface conditions.
- Mechanical function and the host environment (local and systemic) significantly affect material behavior.
- Susceptibility to various forms of biodegradation, particularly corrosion, is a key characteristic.
Conclusions:
- Metallic dental restorations are subject to biodegradation, primarily through corrosion.
- Material properties and performance are intricately linked to multiple influencing factors.
- Further research into corrosion resistance is essential for improving the longevity of dental restorations.