Earlier quoted context omitted.
A few days ago I bought Sensodine with NovaMin. The NovaMin technology doesn't exactly restore the enamel, but does something similar. Here's how wikipedia describes it: "Bioactive glass: Newer Sensodyne products contain calcium sodium phosphosilicate (brand name NovaMin). NovaMin sticks to an exposed dentin surface and reacts with it to form a mineralized layer. The layer formed bonds with the tooth, and is therefor…
"Sensodyne has removed the NovaMin ingredient from their US products" Any idea why? The cited articles don't appear to mention that.
IIRC, there may also have been some complexities regarding the FDA, and perhaps some cross-licensing issues, that figured into GSK's decision. The information is out there, it just requires sifting through the Google hits and piecing together the true story.
I buy European Sensodyne on Amazon for a family member with sensitive teeth, and only dug deep enough to satisfy myself that at least some EU sellers weren't scammers.