541
90% Reduction: Scientists Discover Natural Molecule That Eradicates Plaques and Cavities
(scitechdaily.com)
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Mmmkay, but what about tooth decay, mmkay?
Not much to do about a decayed tooth short of stem cells so not sure why you're asking about repair for something that's entirely preventative
In case it kidnaps the to-be Queen of Canada.
Of course.