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#Repost///@wasted: A team of Japanese scientists may be on the verge of changing dental care forever—by developing a drug that allows humans to naturally regrow lost teeth. Led by Dr. Katsu Takahashi at Kitano Hospital’s Medical Research Institute, the treatment works by blocking a protein called USAG-1, which typically prevents the body from forming new teeth. In trials with mice, shutting off this protein activated dormant “third set” tooth buds—leading to the growth of brand-new teeth.Inspired by animals like sharks and elephants, which naturally regenerate multiple sets, the researchers now plan to begin human clinical trials, aiming for public release by 2030. The drug could help people regrow teeth lost to aging, injury, or genetics—offering a radical alternative to implants or dentures and turning decades of regenerative theory into a practical, bite-sized breakthrough.