Water Fluoridation Additives | Engineering | Community Water Fluoridation | Division of Oral Health | CDC

https://www.cdc.gov/fluoridation/engineering/wfadditives.htm#:~:text=Fluoride%20Additives%20Are%20Not%20Different%20From%20Natural%20Fluoride,-Some%20consumers%20have&text=Two%20recent%20scientific%20studies%2C%20listed,levels%20as%20low%20as%203.5.