[f0ok]

From "Potential fluoride toxicity from oral medicaments" (https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5651468/):

"The beneficial role of fluoride for the maintenance of good oral health has been known for many decades and strongly evidenced by scientific research. However, it must be emphasized that tooth decay (dental caries) is not caused by fluoride deficiency and fluoride supplementation will never reverse the active or gross carious lesions. Since the level of safety of fluoride is low, products that contain a high level of fluoride should be stored and used according to the recommendation and should be monitored by a qualified dental professional especially in children and pregnant women. In children, the swallowing reflex is not very well developed and the fluoride containing dental products are flavored hence increasing the possibility of a child to consume an excessive dose of fluoride."

Maybe swallowing fluoride is not such a good idea?f

(Also, can someone compare toxicity levels of lead versus fluoride?)

[crooked-v]

Most toothpaste has about 1000 ppm of fluoride (0.1%), which isn't a "high level" - in fact, it means that one blob of it on a toothbrush has about the same fluoride content as a large glass of fluoridated water.

"High level" in this case comes in with fluoride rinses or specialty toothpaste, which can have 5000+ or 10000+ ppm of flouride.