New chemical makes teeth ‘cavity proof’

Chemical could be added to toothpastes in year’s time
Kills bacteria that erode teeth
Single dose protects mouth for hours
‘Keep 32′ chemical could even be added to foods

A new chemical could make human teeth ‘cavity proof’ – and do away with the need for visits to the dentists forever.

The molecule has been called ‘Keep 32′ – after the 32 teeth in a human mouth.

The chemical was designed by dentists in Chile, and [...]