MANCHESTER, UK: Researchers from the University of Manchester have conducted a pioneering study in the UK focusing on the oral health and economic impacts of water fluoridation on adults and adolescents, considering populations with widespread access to topical fluoride. While the findings indicate that water fluoridation remains beneficial, the advantages are not substantial. Therefore, in high-income countries, the potential benefits of fluoride treatment alone may have reached its zenith and other measures—such as fostering environments that support healthier food choices—may be more effective.