Researchers at the University of Nottingham in the UK have d
Researchers at the University of Nottingham in the UK have developed a groundbreaking protein-based gel that leverages calcium and phosphate ions, naturally abundant in human saliva, to repair and regenerate damaged tooth enamel.
This innovation, detailed in a study published in Nature Communications, represents a potential shift away from traditional "drill and fill" dentistry toward true enamel restoration.
The gel mimics the natural proteins that guide enamel formation during infancy. When applied to teeth, it forms a thin, robust layer that seeps into cracks and eroded areas.
Acting as a scaffold, it attracts and organizes calcium and phosphate from saliva (or even donated saliva samples), promoting "epitaxial mineralization"—a process where new enamel crystals grow in perfect alignment with the existing tooth structure, restoring its hardness and architecture.
Lab tests showed the regenerated enamel withstands real-world stresses like brushing, chewing, and acidic exposure (e.g., soda) as well as—or better than—natural enamel. It remained intact for weeks in simulated oral environments.
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