Eco-Friendly Coatings Enhance Strength and Compatibility of Titanium Dental Implants
Innovative hydroxyapatite coatings from biowaste improve the strength and biocompatibility of titanium dental implants while promoting environmental sustainability.
Recent advancements from SUNY Polytechnic Institute have introduced an innovative and environmentally sustainable approach to improving titanium dental implants. By applying hydroxyapatite (HA) coatings derived from biowaste materials such as bovine bones and eggshells, researchers have significantly enhanced the mechanical properties and biocompatibility of Ti-6Al-4V alloy implants. This novel coating process utilizes pack cementation, a method that not only boosts surface strength and resistance to wear but also promotes better integration with bone tissue.
Titanium alloys are extensively used in dentistry due to their strength and corrosion resistance. However, their natural bioinertness limits their ability to bond with bone tissue effectively. To address this, the research team, led by Dr. Sarah Akua Osafo from the University of Ghana, has developed a coating that mimics the mineral composition of human bone, fostering improved osseointegration.
A key feature of this breakthrough is its sustainability. Unlike traditional coating techniques, this method employs waste-derived HA, significantly reducing environmental impact and lowering costs. This aligns with global efforts toward eco-friendly medicinal practices.
The coated implants were subjected to comprehensive testing, including scanning electron microscopy (SEM), X-ray diffraction (XRD), and mechanical wear simulations. Results demonstrated that the coatings provided enhanced surface durability, friction resistance, and wear resistance under simulated physiological conditions. These improvements suggest a longer lifespan and more reliable performance for dental implants.
Overall, this research offers promising insights into the development of next-generation biomedical implants. By integrating natural recycling processes with durable coating technologies, it enables the production of biocompatible, strong, and environmentally sustainable dental solutions, potentially reducing costs and increasing accessibility for patients.
Source: ScienceX (2025).
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