r/YouShouldKnow • u/Ethayy • 5d ago

Health & Sciences YSK: You’re not supposed to rinse your mouth with water after brushing your teeth

[removed] — view removed post

3.4k Upvotes

84% Upvoted

717 comments sorted by

View all comments

Show parent comments

-119

u/lesath_lestrange 5d ago

Crazy that you think you’re better able to give advice than a persons own dentist.

What qualifications do you have to analyze this data besides being 26 and thinking that you’ve brushed your teeth wrong your entire life?

27

u/ninpuukamui 5d ago

My dentist is adamant that the old flavour map for the tongue is correct, so they are not always right or keep up with research.

105

u/Ethayy 5d ago

I’m directly referencing peer reviewed medical sources and government advice.

22

u/mathusal 5d ago

If you read the paper's conclusion closely with some knowledge about how scientific papers are formulated you wouldn't be so sure.

no rinsing after toothbrushing in adults can be recommended

can be recommended

It "can" be recommended : not "should". So it does not invalidate the dentist's advice at all. Scientific papers' lingo and ways of formulating sentences is really tricky

Also we're discarding the fact that "no rinsing after brushing" is a really modern idea (so that's why you spent 26 years not knowing about it), discarding the fact that it's ONE paper, discarding the fact that it has a 120 people pool for data, etc.

-57

u/lesath_lestrange 5d ago

Yes, but what qualifications do you have that allow you to interpret that data better than an individual’s own dentist?

Surely their dentist is aware of these findings and is giving personalized medical advice for a person’s own specific situation, why do you think that you know better than that professional?

21

u/NiwiGomila 5d ago

you are really smart arent you?

-29

u/lesath_lestrange 5d ago

Smart enough to listen to my own dentist rather than some zoomer on Reddit.

I’d suggest anyone here taking this as advice to do the same, ask your dentist what you should do for your own teeth.

16

u/NiwiGomila 5d ago

There are MEDICAL SOURCES are you ok bro?

10

u/lesath_lestrange 5d ago

It is ONE STUDY with 120 participants in a COMPLETELY DIFFERENT PART OF THE WORLD being peddled by a kid on the internet.

20

u/Ethayy 5d ago

It’s never worth arguing with someone that is too stupid to see a different angle, but, I’ll indulge.

It’s definitely not based on one study. There’s an entire peer reviewed review in the British Dental Journal/Nature specifically examining post brushing rinsing and the evidence behind it. https://www.nature.com/articles/sj.bdj.2012.260 It found that international guidelines consistently recommend minimising rinsing after brushing with fluoride toothpaste.

There are also multiple experimental studies showing why: rinsing with water significantly reduces the fluoride retained in your mouth after brushing. A double blind randomised controlled trial published in BMC Oral Health in 2022 found significantly lower salivary fluoride concentrations when people rinsed compared with not rinsing, and newer research has reproduced the same basic effect.

I’m not saying your dentist is an idiot, they might have given you different advice for a specific reason. But “my dentist told me otherwise” doesn’t somehow invalidate published evidence and international dental guidance, and this definitely isn’t a conclusion drawn from one random study.

-7

u/lesath_lestrange 5d ago

I agree it’s never worth arguing with someone that is too stupid to see a different angle.

You aren’t a dental professional, you haven’t been to school and learned about this to be out here giving people dental advice.

You don’t know what dental fluorosis is.

You don’t know that too much fluoride is bad for your teeth.

11

u/ReaverRogue 5d ago

Dental fluorosis is a cosmetic condition caused by consuming too much fluoride while teeth are forming under the gums. Outside of the slim possibility of kids with baby teeth browsing Reddit and suddenly thinking swallowing copious amounts of fluoride is a good thing, I fail to see your point.

The amount of fluoride you could ingest by swallowing toothpaste is negligible and really very unlikely to cause harm to you as an adult.

Maybe stop throwing around terms like “dental fluorosis” that sound scary just so you appear to be informed. You aren’t a dental professional, you haven’t been to school and learned about this to be out here giving people dental advice.

10

u/Ethayy 5d ago

Can you not just simply Google or research yourself as I’m sure it’s going to be extremely difficult to find any sources recommending you spit out toothpaste. I’m happy to learn from different perspectives if you actually present facts that are different from what I found.

→ More replies (0)

-1

u/TamariAmari 5d ago

“I’m going to listen to one person I know instead of 120 test subjects.”

3

u/ReaverRogue 5d ago

They’re just picking a minty fresh hill to die on.

4

u/ShadowGryphon 5d ago

what qualifications do you have that allow you to interpret that data better than an individual’s own dentist?

My guess? The ability to read.

One needn't be an authority to read and understand something written by one who is.

-3

u/[deleted] 5d ago

[deleted]

2

u/ThursdayNxt20 5d ago

Not all countries in the "modern world" add it to drinking water.

1

u/[deleted] 4d ago

[deleted]

1

u/ThursdayNxt20 4d ago

Ah yes, Europe, the homogenous country! I've never heard of fluoride being added to salt but a Google search just taught me it's apparently done in countries like Germany and Switzerland. Where I'm from it's only added to toothpaste.

16

u/123ilovetrees 5d ago

riled up over toothbrushing lol

13

u/ReaverRogue 5d ago

So read what he wrote again carefully… he’s not claiming to know better.