On October 27, 2021 the journal Nature published a lengthy article on drinking water fluoridation. The article begins with the lawsuit filed in April 2017 under the Toxic Substances Control Act (TSCA) to stop drinking water fluoridation and includes discussions about the current understanding of benefits and risks. According to the article the judge in the TSCA lawsuit is awaiting the third and final draft monograph from the National Toxicology Program (NTP) on health effects of fluoride (expected in early 2022 according to article) before making a final ruling.
Link to article in Nature:
https://www.nature.com/articles/d41586-021-02924-6
Link to National Academies of Sciences, Engineering and Medicine (NASEM) Press Release earlier this year on the NASEM review of the second draft of the NTP Monograph:
