Is there any evidence that the specific type of fluoride salts added orally via the toothpaste actually provide anything beneficial? Asking because I have seen

Is there any evidence that the specific type of fluoride salts added orally via the toothpaste actually provide anything beneficial? Asking because I have seen some biologists get into arguments about this very topic specific to the type of fluoride solutions. [1a][1b] Just curious really. Fluoride has some interesting properties. [2] Apparently some cities have blocked water companies from adding it to the water supply. [3][4] 74 cities. Some foods naturally contain fluoride. [5] [1a] - https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6195894/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6195894/ [1b] - https://www.youtube.com/watch?v=t1oPcYDFPRU https://www.youtube.com/watch?v=t1oPcYDFPRU [video] [2] - https://en.wikipedia.org/wiki/Sodium_fluoride https://en.wikipedia.org/wiki/Sodium_fluoride [3] - https://www.oregonlive.com/portland/2013/05/portland_fluoride_for_the_four.html https://www.oregonlive.com/portland/2013/05/portland_fluorid... [4] - https://www.nbcnews.com/news/us-news/science-says-fluoride-water-good-kids-so-why-are-these-n920851 https://www.nbcnews.com/news/us-news/science-says-fluoride-w... [5] - https://strongsmilesdental.com/blog/foods-naturally-contain-fluoride/ https://strongsmilesdental.com/blog/foods-naturally-contain-...