Reported by ScienceDaily
Scientists have developed a new gel that could make it possible to regrow damaged tooth enamel, potentially overcoming one of the biggest limitations in dental care. Unlike bones and many other tissues in the body, tooth enamel cannot naturally regenerate once it has been lost. The new treatment offers a promising way to rebuild this protective layer, strengthen teeth, and help prevent future decay.
The innovation comes from researchers at the University of Nottingham's School of Pharmacy and Department of Chemical and Environmental Engineering. Their new material is inspired by the biological processes that form tooth enamel during early childhood. It is designed to repair enamel that has been weakened by mineral loss or worn away by erosion, while also reinforcing enamel that remains healthy.
The findings, published in Nature Communications , could pave the way for a new generation of dental treatments that go beyond protecting existing enamel and actually help restore its structure.
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One of the most promising features of the technology is its simplicity. Dentists could apply the gel directly to teeth using a procedure similar to existing fluoride treatments, making it potentially easy to incorporate into routine dental care.
Unlike conventional fluoride products, however, the new gel contains no fluoride. Instead, it uses a material made from proteins that imitates important characteristics of the natural proteins responsible for guiding enamel formation when teeth first develop.
Once applied, the gel forms a thin but durable coating that penetrates the tooth's surface and fills microscopic cracks and gaps. This coating then provides a framework for rebuilding the mineral structure of enamel.
The process relies on calcium and phosphate ions, two essential mineral components naturally present in saliva. The gel attracts these minerals and helps organize them into new crystals that grow in an orderly pattern.
Scientists call this process epitaxial mineralization . Essentially, it means that new mineral crystals grow in alignment with the existing enamel, allowing the newly formed material to become structurally integrated with the original tooth surface.
This organization is especially important because enamel gets its exceptional hardness and durability from the precise arrangement of…