Steven Bornfeld wrote:
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> Matt wrote:
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>> Mark wrote:
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>>> My dentist recommended using ACT Fluoride rinse after brushing. The
>>> directions on the bottle say to swish the fluoride rinse in my mouth
>>> for one minute and then spit out. The directions then say to not eat
>>> or drink for half an hour. I'm wondering if it is ok to rinse my
>>> mouth out with water after spitting out the fluoride rinse?
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>>
>> Unless you have special needs,
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>
> Like decay? What other "special need" would it be recommended for?
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Thanks for your reply. You impelled me to look up some basic facts.
You know such needs better than I. Some medicines reduce saliva
production and puts the patient at greater risk of decay, for instance.
A history of decay, as you suggest, for another example.
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> I recommend fluoride rinses only for those I have evaluated and I
> feel will benefit.
>
> Steve
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I find that my Crest toothpaste has about 7.5 times the fluoride
concentration of ACT rinse (0.15% w/v (ca. 1500 ppm) vs. 200 ppm).
http://www.actfluoride.com/faq.html#act_faqs_02
(((((
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> How much fluoride do ACT® Fluoride Rinses and Restoring™ Mouthwashes contain?
> * A 1 oz and 18 oz bottle contains 0.05% sodium fluoride, which is equivalent to 0.02% of the fluoride ion.
> * A 33 oz bottle contains 0.02% sodium fluoride, which is equivalent to 0.009% of the fluoride ion.
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)))))
If the patient absorbs the fluoride from 1/2 ml of rinse, that would be
like drinking 100 ml of 1 ppm fluoridated tap water. So I guess it
doesn't make a huge difference WRT the toxicology, except for
individuals predisposed to fluorosis. For the caries-prevention aspect,
the 7.5 factor makes me think that the rinse doesn't make much
difference either. Were it otherwise, I expect that the [F-] of
toothpaste would be much lower, given fluoride's toxicity. However,
that argument disregards the possibility that fluoride is put in
toothpaste to get rid of a toxic waste.
So my guess at the moment is that fluoride rinses don't do any great
harm or good, if they are kept away from children who might swallow them.
It seems comical that the 33 oz bottle has a lower [F-] than the smaller
bottles. Maybe there is a regulation that limits the total fluoride
that can be sold in a single bottle.