Water fluoridation
Health and dental organizations worldwide have endorsed its safety and effectiveness. Its use began in 1945, following studies of children in a region where higher levels of fluoride occur naturally in the water. Further research showed that moderate fluoridation prevents tooth decay.
Fluoridation by country
Fluoride was required in water supplies nationwide by legislation passed in 2002, but the requirement was repealed in 2014, and artificial fluoridation was disparaged by national health officials, effectively ending the practice in Israel for a short while. After the election of 2015 the fluoridation program is to be re-debated the new deputy Health Minister Yaakov Litzman.