Scientists in Japan have created a microscopically thin film that can coat individual teeth to prevent decay or to make them appear whiter, the chief researcher said.
Dingy teeth were once relatively common.
The expansion of the European Union has given rise to many new business opportunities, with borders effectively removed and trade being opened up across the continent.
The Rolly Brush is the world’s smallest chewable toothbrush.
The whine of the dentist’s drill may soon be silenced, as scientists claim to have found the secret of a “completely painless”