A Review on Tribocorrosion Mechanisms in Dental Implants: Fundamental Insights, Challenges, and Future Perspectives
摘要
Tribocorrosion is a type of material degradation in which mechanical wear and electrochemical corrosion occur in a synergism increasing the rate of material degradation which in evidently affects the performance, life-span, and safety of engineering materials. It is crucial to understand the synergism of wear and corrosion for the development of safe and sustainable components. Understanding this phenomenon requires an interdisciplinary approach combining mechanical, material, and electrochemical engineering. Tribocorrosion is one of the most prominent causes of failure of dental implants as they undergo random loading, sliding, and impact in the oral environment making them susceptible to tribocorrosion-related failure. PRISMA guidelines were used to analyze the literature retrieved from Scopus and PubMed covering 2000–2026. A total of 4,847 papers were identified, of which 397 studies were selected, identifying 14 distinct tribocorrosion mechanisms. The analysis reveals that fretting corrosion is the most studied failure mechanism, appearing in 22.4% of the literature with the highest average clinical incidence (12–18%). Other significant tribocorrosion mechanisms include pitting corrosion, crevice corrosion, and sliding wear. The review further evaluates mitigation strategies, highlighting the efficacy of diverse approaches. Surface modifications such as Micro Arc Oxidation (MAO) and Diamond-Like Carbon (DLC) coatings, as well as targeted design modifications, demonstrated significant potential in reducing wear and corrosion, with MAO achieving a mean wear reduction of 71%.
Graphical Abstract