Comment by latexr

I’ve been reading about how “X could repair tooth enamel” for years, including on HN. Nothing ever comes of it. I’ll believe it when something exists out of a laboratory and on the market.

> The treatment could be delivered through a toothpaste for daily use or as a professionally applied gel

Could. In other words, they haven’t even tested if a toothpaste is viable, yet the title is written as if this is a ready-made and proven product.