Realms of Reality on Instagram: "In the early days of dentistry, people would put almost anything in their mouths in the name of hygiene. One of the most disturbing recipes came from ancient Rome, where certain healers believed that powdered mouse brain could whiten teeth and “restore lost vitality.” They would dry the heads of newborn mice, crush the skulls, and mix the fine grey powder into a paste with honey or vinegar. This mixture was then rubbed into the gums to “strengthen the roots” and