New research from the US introduces an innovative, eco-friendly method to enhance the performance and longevity of titanium-based dental implants, focusing on improving the biocompatibility and mechanical resilience of Ti-6Al-4V alloy implants using hydroxyapatite (HA) coatings derived from biowaste.
The research is published in Scientific Reports.
Titanium alloys are widely used in dental implants for their strength and corrosion resistance. However, these materials are bioinert and do not naturally integrate with bone tissue.
To address this challenge, the researchers—a team from SUNY Polytechnic Institute, in collaboration with peers at the University of Ghana and Worcester Polytechnic Institute—applied a hydroxyapatite coating, a material chemically similar to human bone, through a sustainable process known as pack cementation.
Unlike conventional methods, this approach utilises waste materials such as bovine bones and eggshells to produce the HA coatings. This not only reduces environmental impact but also offers a scalable, cost-effective solution for improving implant performance.
Through advanced testing methods, including scanning electron microscopy, X-ray diffraction, and mechanical wear simulations, the coated implants demonstrated enhanced surface strength, improved osseointegration, and greater resistance to friction and wear under simulated body conditions.
