New teeth grown from urine

Teeth can grow from the most unlikely of sources: human urine. A study published in the Cell Regeneration Journal says that urine could be used as a source of stem cells that, in turn, could be grown into tiny tooth-like structures. It was a group at the Guangzhou Institutes of Biomedicine and Health that used urine as a starting point. A stem cell scientist at the University College of London however said urine as a poor starting point, the BBC reported. “It is probably one of the worst sources, there are very few cells in the first place and the efficiency of turning them into stem cells is very low,” Chris Mason said. The teeth that developed were found to be not as hard as natural teeth.

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Closeup image of a child with a tooth space from Shutterstock