Scientists have successfully used tissue engineering techniques to grow almost fully formed teeth.
They believe the breakthrough could eventually lead to a biological tooth substitute to replace human teeth.
The researchers made a suspension of individual cells from a young tooth reorganise into a tooth crown containing both enamel and dentin.
She predicted that within five years, we would know whether dental stem cells could be manipulated to bioengineer teeth. To generate a human tooth might take an additional five to 10 years.