What did our ancestors eat to clean their teeth? | HowStuffWorks
WEBToothpaste as we know it today is a relatively recent invention from around the late1800s, but there's evidence that the goo that refreshes was used as early as 5000 in China, Egypt and India. Early recipes included ingredients like ground ox hoof, rock salt, myrrh, honey, ground bone, dried iris flowers, pulverized and charred eggshells ...