Dentist warns against using mouthwash after brushing teeth [Video]

WHAT’S BEING CLAIMED:

  • A dentist is going viral on TikTok for warning against the practice of using mouthwash after brushing the teeth.
  • According to London-based dentist Anna Peterson, the practice “is going to give you tooth decay.”
  • Peterson explained that mouthwash rinse away beneficial fluoride found in toothpaste.

One dentist in London is going viral for warning against the practice of using mouthwash after brushing teeth. Anna Peterson says it can also rinse away beneficial fluoride found in toothpaste.

“Using mouthwash after brushing your teeth is going to give you tooth decay,” Anna Peterson warned in a TikTok clip with over 1.8 million views.

In a second video PSA, Peterson says the “toothpaste that you brush your teeth with has around 1450ppm fluoride,” which is the ideal concentration to protect your teeth against the sugars found in the food and drink you consume.

The dentist noted that “mouthwash has only 220ppm fluoride,” which is not good enough for tooth decay prevention.

As a result, “when you brush your teeth, and you rinse with mouthwash straight away — you just rinse off all the high-concentration fluoride, for a low-concentration fluoride,” according to Peterson. This can, in turn, make one’s mouth a magnet for microbes.

The lady dentist stressed that she isn’t suggesting that we swear off mouthwash forever.

“By no means am I against mouthwash,” she explained. “Because I do actually recommend it to my patients. But not every patient needs it. I certainly don’t tell them to use it after brushing.”

She added, “Rinsing with water is better than rinsing with mouthwash, just brush then spit out the excess, try not to rinse.”

Peterson’s recommendation stoked confusion from many users that she had to post a third video explaining how to properly use mouthwash.

The dentist said that the perfect time to use mouthwash is right after you eat.

Peterson explained that sugars in the food you eat make your mouth acidic, thereby causing your teeth to dissolve.

“Now if you were to go and brush your teeth at this point, what’s happening is that you’re brushing the acid into your tooth,” she insisted. “And this causes tooth erosion. So to get your teeth out of this critical zone, use mouthwash.”

In a statement to WebMD, dentist Mark Wolff, Ph.D., chair of cariology and comprehensive care at New York University College of Dentistry, said “Mouthwashes, when added to a good home care regimen of brushing and flossing, can target a condition that you are facing.

You don’t swish for two minutes with a whitening mouthwash and suddenly have white teeth. But if you brush well and keep the plaque off of them and use that mouthwash as part of the package, you do get whiter teeth.”

Source: New York Post

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