[colordrops]

I stopped getting cavities when I started using fluoride-free toothpaste and filtered my water with reverse osmosis. But correlation is not causation and all, so it was probably due more to not eating sweets so much anymore, brushing and flossing properly and without fail twice a day, and maintaining a healthy immune system through sleep, exercise, and a good diet.

[azinman2]

Fluoride is effective at remineralizing your enamel. Fluoride isn’t just for cavities.

[saurik]

You are much better off using nanohydroxyapatite for that, though; you can easily import such toothpastes from Japan via Amazon.

[commoner]

See also the bioactive glass compounds BioMin (fluoro calcium phosphosilicate) and NovaMin (calcium sodium phosphosilicate), which come in toothpastes that also include fluoride to cover all the bases.

https://ceramics.org/ceramic-tech-today/biomaterials/bioacti...

BioMin F is as effective as nanohydroxyapatite, and is less expensive than the Apagard nanohydroxyapatite toothpaste. (BioMin F is not yet available in the U.S. and needs to be imported.)

https://www.journalcra.com/sites/default/files/issue-pdf/317...

[azinman2]

Interesting. Hadn’t heard it it before, but at least according to this and it’s linked paper it’s roughly equivalent. What makes you say that you’re better off?

https://www.rdhmag.com/patient-care/article/14276225/nanohyd...

[warble]

I use this stuff and I stopped getting cavities. Just one example obviously, but it was night and day better I think. It's a little pricey is all.

[lost_tourist]

It's great for tooth sensitivity as well.

[lost_tourist]

there is boka an American company. there are others as well, no reason to import from japan.

[quotz]

Source?

[wingworks]

Not really a source, but this Dental Hygienist talks a bit about hydroxyapatite. Sounds like it could be of at least equal effectiveness. Though further studies are needed. https://youtu.be/kQAPEZaqwfY?t=63

[alexsereno]

Not OP but I have a family member who’s a specialized dentist who’s well regarded in the field and constantly harps on this kind of toothpaste over fluoride. I think fluoride is basically cheap and that’s all

[colordrops]

Perhaps, but how much of a difference does it really make? Your saliva remineralizes your enamel naturally. I've gone over 10 years without fluoride in my toothpaste or water and my teeth are in perfect condition, at least according to the dentist. So is the toxicity of fluoride worth some clearly minor and perhaps not even necessary improvement? I used large quantities of fluoride as a child, both in toothpaste and mouth washes, and still got 10 cavities.

[azinman2]

Most people benefit significantly. That has been proven in study after study. The toxicity has not been, or it wouldn’t be widespread world wide. I’m glad your genetic makeup, diet, microbiome, etc is working out for you. That may or may not change with time.

The CDC says there’s a 25% reduction in cavities for children due to fluoride [1]. So it’s not like fluoride is only for cavity prevention, and perhaps your teeth would have been even worse without it.

[1] https://www.cdc.gov/fluoridation/index.html

[colordrops]

I've gone through several studies and you are not representing the field fairly. There are many studies going both ways. It's far from a slam dunk consensus. Furthermore, there is absolutely no question that fluoride is toxic. It's just a question whether the amounts in water and toothpaste are enough to cause measurable negative effects.

Considering this, why don't we add things like B12, magnesium, and vitamin D to the water? They are all deficient in a large percentage of the population and cause severe problems, far worse than dental caries. The reason they are not is because it's not the business of the water supply to act as medicine for the general populace. It should come from individual products. You see fortified foods and vitamins, as well as fluoride toothpaste and mouth washes.

[azinman2]

Could you cite your sources? I’m genuinely curious. There’s a lot of quackery out there on this since the tin foils love to accuse fluoride of somehow being a gov brain control method.

Of course fluoride is toxic at a certain level - so is water! The dose makes the poison. The question is if it’s a worthwhile trade off for society, and is it toxic at the levels used. It can’t be too toxic given the extremely large populations that have received it for decades without people dropping dead because of it. In fact life expectancy has only gone up since it’s introduction in 1945. Municipal water I believe is chlorinated as well, which in sufficient quantities is bad, but in small amounts is worth the trade off to kill the germs.

The US requires flour to be enriched with thiamin, riboflavin, niacin, folic acid, and iron. So there are other mandated ways to achieve vitamins in public health. My guess is water just isn’t an appropriate vector for those things for a variety of reasons, but that’s pure speculation. It’s an interesting question. On the other hand, I don’t believe you’ll naturally get fluoride anywhere else but injected into your water (or naturally occurring), so that’s probably a good deal why.

[colordrops]

This is not a good faith argument to claim that fluoride and water are in the same class of substances when it comes to toxicity.

Also you are wrong that all flour in the US must be enriched. I have some unenriched flour on my shelf right now.

https://www.hsph.harvard.edu/news/features/fluoride-children...

[wingworks]

Everyones teeth, diet etc are different. What works for you may not work for others.

[MathMonkeyMan]

What other uses does mineralized enamel have, aside from resisting attack by plaques? Honest question.

[azinman2]

Plaque and tartar eat away at your enamel causing caries. Remineralizing is important to restore what has been taken away. So it’s not so much about resisting attack (I don’t believe fluoride fights bacteria) as much as reversing the attack.