Silver diammine fluoride
Silver diammine fluoride (SDF), also known as silver diamine fluoride in most of the dental literature (although this is a chemical misnomer), is a topical medication used to treat and prevent dental caries (tooth decay) and relieve dentinal hypersensitivity. It is a colorless (most products) or blue-tinted (Advantage Arrest, SilverSense SDF), odourless liquid composed of silver, ammonium and fluoride ions at a pH of 10.4 (most products) or 13 (Riva Star).