Scientists in Japan have successfully been able to bioengineer teeth in adult mice. That’s right – they have found a way to give a mouse a whole new set of chops. So far, their method only works on adult mice, however someday soon there may be a similar method that works on adults.
The team, led by cell biologist Takashi Tsuji from Tokyo University of Science, focused on embryonic tissues that develop into teeth. He extracted these tissues from mouse embryos, separated the epithelial cells and mesenchymal cells, recombined them into a new bioengineered tooth germ, grew them for 5-7 days, planted them into the jaws of adult mice, and voila! New healthy teeth reached their full potential after just 49 days. The new teeth proved to be just like the real thing – they had roots, inner pulp, outer enamel, and proved to be just as hard and durable as normal teeth. Previous studies have been tried, but none were as successful as this recent experiment.