where is the highest level of fluoride stored in the teeth
surface of the enamel
title: Fluoride therapy text: salt in a very high concentration (approximately 50,000 ppm) onto the surface of the teeth. Fluoride varnish is a resin-based application that is designed to stay on the surface of the teeth for several hours. As this varnish rests on the tooth's surface, saliva dissolves the fluoride salt, which in turn allows fluoride ions to be released and absorbed by the teeth and soft tissues. Later, the fluoride is re-released into the oral cavity from these reservoirs which acts as protection for the teeth against cavities. Currently, there is also no published evidence that indicates that professionally applied fluoride varnish title: Fluoride therapy text: Fluoride therapy Fluoride therapy is the use of fluoride for medical purposes. Fluoride supplements are recommended to prevent tooth decay in children older than 6 month in areas where the drinking water is low in fluoride. It is typically used as a liquid, pill, or paste by mouth. Where public water supplies are fluoridated further fluoride by mouth is typically not needed. Fluoride has also been used to treat a number of bone diseases. Normal doses may occasionally result in white marks on the teeth. Excessive doses can result in brown or yellow coloring of the teeth. Fluoride therapy typically title: Tooth enamel text: Fluoride can be found in many locations naturally, such as the ocean and other water sources. The recommended dosage of fluoride in drinking water depends on air temperature. Fluoride catalyzes the diffusion of calcium and phosphate into the tooth surface, which in turn remineralizes the crystalline structures in a dental cavity. The remineralized tooth surfaces contain fluoridated hydroxyapatite and fluorapatite, which resist acid attack much better than the original tooth did. Fluoride therapy is used to help prevent dental decay. Fluoride ion, as an antimicrobial, may activate bacteria fluoride-induced genes associated with fluoride riboswitches. The combination of fluoride ion and title: Dectaflur text: Dectaflur Dectaflur (INN) is a fluoride-containing substance used for the prevention and treatment of dental caries, sensitive teeth, and the refluoridation of damaged tooth enamel, typically in combination with olaflur. Dectaflur consists of oleyl amine (the amine corresponding to oleyl alcohol) and hydrofluoric acid. Oleyl amine with its long lipophilic hydrocarbon chain has surfactant properties. It forms a film layer on the surface of teeth, which facilitates incorporation of fluoride into the top layers of the enamel, reaching a depth of only a few nanometers. The precise mechanism of action is unknown. Like other fluorides, dectaflur is toxic when overdosed title: Fluoride text: and is considered by the U.S. Centers for Disease Control and Prevention as "one of 10 great public health achievements of the 20th century". In some countries where large, centralized water systems are uncommon, fluoride is delivered to the populace by fluoridating table salt. For the method of action for cavity prevention, see Fluoride therapy. Fluoridation of water has its critics (see Water fluoridation controversy). Fluoridated toothpaste is in common use, but is only effective at concentrations above 1,000 ppm, as is common in North America and Europe. Fluoride salts are commonly used in biological assay processing to inhibit the