A single 8 oz serving of matcha has .1 to 1.2 mg of fluoride Typical amount of fluoride on toothbrush head has about 1 mg of fluoride It’s estimated .1 to .45 mg of fluoride is ingested while brushing. So if you are taking a stance to not use fluoridated toothpaste but are drinking matcha everyday you should look into that! #fluoride #toothpaste #matcha