Ancient Romans used human urine as mouthwash. The ammonia in urine is an effective natural cleaning agent. How? - Quora
![Fake History Hunter on Twitter: "Probably not, Romans & Greeks mention urine being used to whiten teeth but all think it was a disgusting barbaric thing the Celts in Spain did, which Fake History Hunter on Twitter: "Probably not, Romans & Greeks mention urine being used to whiten teeth but all think it was a disgusting barbaric thing the Celts in Spain did, which](https://pbs.twimg.com/media/FSzcLBZWQAAYL4X.jpg)
Fake History Hunter on Twitter: "Probably not, Romans & Greeks mention urine being used to whiten teeth but all think it was a disgusting barbaric thing the Celts in Spain did, which
![The Ancient Romans Had Many Uses for Urine, Including Teeth Whitening | Hornet, the Queer Social Network The Ancient Romans Had Many Uses for Urine, Including Teeth Whitening | Hornet, the Queer Social Network](https://d3u63wyfuci0ch.cloudfront.net/wp-content/uploads/2020/11/10155425/ancient-rome-urine-teeth-whitening-latrine.jpg)
The Ancient Romans Had Many Uses for Urine, Including Teeth Whitening | Hornet, the Queer Social Network
![Fake History Hunter on Twitter: "Probably not, Romans & Greeks mention urine being used to whiten teeth but all think it was a disgusting barbaric thing the Celts in Spain did, which Fake History Hunter on Twitter: "Probably not, Romans & Greeks mention urine being used to whiten teeth but all think it was a disgusting barbaric thing the Celts in Spain did, which](https://pbs.twimg.com/media/FSzcKCLXoAAvYIY.jpg)
Fake History Hunter on Twitter: "Probably not, Romans & Greeks mention urine being used to whiten teeth but all think it was a disgusting barbaric thing the Celts in Spain did, which
![From Gunpowder to Teeth Whitener: The Science Behind Historic Uses of Urine | Science| Smithsonian Magazine From Gunpowder to Teeth Whitener: The Science Behind Historic Uses of Urine | Science| Smithsonian Magazine](https://th-thumbnailer.cdn-si-edu.com/lOnrWHcamIR6YwzzHh8KwUNzqj0=/fit-in/1600x0/https%3A%2F%2Ftf-cmsv2-smithsonianmag-media.s3.amazonaws.com%2Ffiler%2F20130820124130Urine_sample-small.jpg)
From Gunpowder to Teeth Whitener: The Science Behind Historic Uses of Urine | Science| Smithsonian Magazine
![Ancient Romans Loved White Teeth - All Means Were Acceptable To Get Them Even Portuguese Urine - Ancient Pages Ancient Romans Loved White Teeth - All Means Were Acceptable To Get Them Even Portuguese Urine - Ancient Pages](https://www.ancientpages.com/wp-content/uploads/2017/12/celsusmedicina11.jpg)