Dr Elsharkawy
"If you have a small defect, it would heal itself without you even realising."
Many tooth problems come from damaged enamel, which does not regenerate - once it is lost, it is gone forever.
When the keratin mixes with the minerals in saliva, it produces a protective coating to mimic the structure and function of natural enamel.
Fluoride toothpastes and fluoride added to drinking water are currently relied on to slow enamel erosion but keratin-based treatments were found to stop it completely.
"Keratin offers a transformative alternative to current dental treatments," said Sara Gamea, PhD researcher at King's College London and first author of the study.
The toothpaste will look and feel just like standard fluoride paste, with a minty flavour and foaming texture but instead contain enough keratin for daily use.
"The aim is that we want this to be affordable and reach the public," said Dr Elsharkawy.
Published 19th August 2025 by Mickey Carroll – Sky News
https://news.sky.com/story/toothpast...cover-13414542