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Researchers say human hair could soon be key to repairing teeth damaged by cavities

NEWYou can now listen to Fox News articles! A team of scientists in London may have found a way to repair tooth enamel using an ingredient found in an unexpected place: human hair. Researchers at King’s College London experimented with keratin, the same natural protein found in hair, skin and nails, on teeth. In lab tests, the system “has shown …

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