The End Of Fillings Is In Sight As Scientists Grow Tooth Enamel

The end of fillings is on the horizon, after scientists found a way to successfully grow back tooth enamel. While tooth enamel is the hardest tissue in the human body, it can't repair itself when damaged, leaving people exposed to cavities and eventually needing fillings or a tooth extraction. Now, scientists have found that mixing calcium and phosphate ions — both minerals which are found in enamel — with a chemical called triethylamine in an alcohol solution causes enamel to grow with the same structure as in teeth. When the mixture was applied to whole human teeth, it repaired the enamel layer to a thickness of around 2.7 micrometers and achieved the same structure and orientation as natural enamel within 48 hours. Scientists believe this will be developed as a promising enamel repair material for dental applications in the near future. In the meantime, they’re also looking for ways to grow back teeth.