30 October 2025, WHO publishes a guideline on environmentally friendly and less invasive oral health care for preventing and managing dental caries, which serves Parties to the Minamata Convention as Information Document to phase out dental amalgam by 2034. WHO suggests the use of glass ionomer cements and resin-based composites as direct restorative materials for the treatment of dental caries and gives recommendations for the treatment of vulnerable populations and safe handling and application of resin-based composites.