The pink solution is media containing all the necessary nutrients. Now scientists have begun growing human teeth parts in the lab.
Dentures have, of course, come a long way since then.
So there's nothing like being able to use the real thing. Tooth Parts in a Petri Dish MacDougall has managed to grow the real thing, or at least parts of it, in her laboratories at the University of Texas. She and her students first dissected tissues borrowed from extracted wisdom teeth. Then they added extra genes to the tissue cells that make up the tooth's outer shell, enamel and its inner hard surface, dentin so the cells would continue to replicate in culture. After nurturing these cells in moist conditions, the team soon had human tooth parts growing in culture.