Previously if the protective coating on your teeth known as enamel wore away, it was gone forever.

Now researchers have developed an ultra-thin material that would wrap around teeth, protecting it from decay. The layer would be 0.004mm thin and barely visible.

In addition to restoring enamel, it can be used as a preventative measure to protect erosion by acid and sugar.

The material is made from hydroxyapatite, a biomaterial typically used for repairing teeth and bones. Until now researchers have been limited by its inflexibility.