While teeth play a greater role in health than many realise, current dental solutions for tooth loss are temporary and subpar. What if we could regrow our teeth instead? //

Despite the demand, we're still years away from the first person to get self-filling cavities or a lab-grown tooth replacement. Before "we can begin to talk about" studying humans, experiments with non-human primates have to happen first, says Ruohola-Baker. That will take more research, time, and money. Plus, to get lab-grown teeth into human mouths, researchers need to create improved environments for tooth development.

In the meantime, the lessons learned in regenerative dentistry could help broader efforts to reproduce various parts of the body, such as organs and bones. Because teeth are "highly sophisticated living organs," says Yelick, efforts to replicate them in labs are teaching scientists how hard and soft tissues work together on a very basic level.