If the trial is successful, the researchers hope the drug will become available for all forms of toothlessness sometime around 2030. Japanese researchers have moved forward with an experimental drug that promises to regrow human teeth. This development follows years of study around a particular antibody named Uterine sensitization–associated gene-1 (USAG-1), which has been shown to inhibit the growth of teeth in ferrets and mice. Related Story A Procedure Could Bring Dead Organs Back to LifeSo now, scientists are seeing just how similar, because humans are undergoing a similar trial. While these treatments are currently focused on patients with congenital tooth deficiency, Takahashi hopes the treatment will be available for anyone who’s lost a tooth.