It’s the latest trend in dental science—regenerative dentistry. Imagine if, after drilling out decay in a tooth, your dentist put in a filling that actually triggered your own body’s stem cells to literally rebuild that tooth.

A research team from Harvard University and the University of Nottingham in England just won third prize in the Royal Society of Chemistry’s 2016 Emerging Technologies Competition with their new synthetic filling material that stimulates stem cells. Others researchers are exploring using special lasers to stimulate a tooth’s stem cells.

Don’t ask your dentist for these procedures just yet—they’re still very experimental. But they’re worth knowing about for your future dental health.

As for tooth decay prevention, enjoy aged cheddar cheese but watch out for French kissing. You find dozens more tips in the Bottom Line Guide to Surprising Ways to Keep Your Teeth and Gums Healthy.