To make the teeth, Duanqing Pei, who works at the Chinese Academy of Sciences in Guangzhou, mixed the stem cells with the connective tissue cells of mice.
This concoction was grown for two days prior to being implanted under the outer layer of a mouse’s kidney. Once there, the cells were coaxed into becoming dental epithelial tissue, and eventually enamel.
It’s worth noting that the teeth were softer than normal teeth (probably because they were not being used as they grew), and they were a bit misshapen.
Baby steps. Er…baby teeth?
Either way, as the cyborg owner of three titanium tooth implants, this would be a huge step forward for dental science.