Form Concentrations of fluoride in toothpaste sold in the United States range from 1,000–1,500 ppm. It may contain up to 5000ppm, but anything over 1500pmm requires a prescription and can’t be bought over the counter. Express the fluoride ion concentration in the toothpaste as %F. The following equation can be used: Water (7732-18-5) Persistence and degradability Not established. This review confirms the benefits of using fluoride toothpaste in preventing caries in children and adolescents compared with placebo, but only statistically significantly at fluoride concentrations of 1000 ppm and above. Determine the ppm F-in your unknown and in the toothpaste from the calibration curve. However, young children are not able to do that. To gain the American Dental Association (ADA) Seal of Acceptance a toothpaste must contain at least 1000ppm (parts per million) of fluoride. Recommending 1000 ppm fluoride toothpaste for caries prevention in children - Shijia Hu, Wen Pui Bien Lai, Wanyi Lim, Ruixiang Yee, 2020 I had an anti-fluoride patient the other day that was saying he read somewhere that a pea-sized amount of toothpaste contains the same amount of fluoride in 1 liter of tap water (1 ppm). Fluoride Toothpaste. That means brushing for 2 minutes and then spit out. Parents should use toothpastes that contain fluoride with a minimum concentration of 1,000 parts per million to prevent tooth decay in their children, says a new report. Sodium Fluoride (7681-49-4) LC50 fish 1 > 530 mg/l (96 h, Lepomis macrochirus) EC50 Daphnia 1 98 mg/l (48 h, Daphnia magna) 12.2. Persistence and degradability Fluoride Standard, 1000 ppm Persistence and degradability Not established. Published: 27 March 2010 Summary Review/Caries. The ppm unknown can be determined using the following equation: Ppm F-unk = ppm F-from graph x (100 mL/5mL) = ppm F-(graph) x 20. 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