History, The More You Know

Romans Used Urine as Mouthwash

Romans had a strange way of taking care of their teeth: by gargling their pee. The ammonia in urine was thought to disinfect mouths and whiten teeth, and urine remained a popular mouthwash ingredient until the 18th century.

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The More You Know

  • The ancient Romans often used stale urine as mouthwash.
  • George Washington Never Had Wooden Teeth
  • France was part of the Roman Empire.
  • John Adams Was the First President to Live In the White House
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