6. Use Biomaterial
Scientists from Kinki University in Japan have been working on away to adapt hydroxyapatite, which is the biomaterial that makes up enamel, into a thin film that can be used as a natural enamel substitute.
The tricky part is that currently the material is just wrapped around the tooth and can still be loosened or fall out over time. Dental researchers are looking for a way to potentially harness nanotechnology to grow hydroxyapatite crystals directly on the outside of teeth.