Add Yahoo as a preferred source to see more of our stories on Google. Summer Decker, PHD, (left) 3D Imaging Lead for Keck Medicine of USC, and Diane Perlov, PHD, (right), Senior Vice President for ...
Millennia ago, when ancient people did not know what toothbrushes were, food particles and microbes clung stubbornly to their teeth. These plaques mineralized over time to form crusty, hard tartar.
Queen Mary University of London provides funding as a member of The Conversation UK. Ancient Egyptians and Etruscans pioneered orthodontics, using delicate gold wires and catgut to straighten teeth.
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