Fluoride is beneficial to children’s oral health: “Fluoride” is the most common, safest and most effective anti-caries treatment for children in the world. “Fluoride application” is a kind of fluoride preparation used by children’s dentist to fluoridate the surface of each tooth in children’s mouth, and the fluoride preparation stays on the surface of the tooth, thus forming a “protective film” of the tooth, which can effectively prevent The fluoride agent stays on the surface of the teeth, thus forming a protective film of teeth, which can effectively prevent the occurrence of tooth decay. The benefits of regular dental fluoride application for children: 1. It can make the newly erupted teeth of children strengthen the calcification and make the milk teeth stronger and healthier. 2.Repair early caries; fluoride can also combine with calcium ions in the mouth to repair decalcified teeth and promote tooth remineralization. If early caries occurs in the milk teeth of children, remineralization may occur after applying fluoride, which can reverse the early caries damage without cavity formation. 3.Fluoride can not only inhibit the growth of bacteria in the mouth, but also inhibit the fermentation of carbohydrates by cariogenic bacteria, and reduce the production of acids that corrode the calcium of teeth. Methods and types of fluoride treatment: 1.Fluoride foam – the guardian of dental health. Fluoride foam is a kind of fluorine containing caries prevention product which is used more internationally at present. It cleverly uses the form of foam to preserve fluoride, so that the tooth surface and crevices are attached by thousands of bubbles and continuously release fluorine ions to achieve the maximum fluorine absorption with the smallest content. It is a safe and reliable professional method to prevent tooth decay. 2.Fluorine protective varnish — mainly plays a kind of sealing role, a big innovation. It is not easy to volatilize. And it contains the fragrance of natural resin and smells sweet. 3.Vessel sealant — the umbrella of teeth. Vulcan closure is a resin-like material, coated on the outside of the teeth, forming a layer of maintenance shield, isolated from the corrosion of bacteria on the tooth sockets, grooves, while facilitating clean teeth, maximum prevention of caries. There is no pain when sealing, and the material used is non-toxic and harmless. In order to ensure the full effect of this coating film on the tooth surface, children should not drink, rinse or eat within 4 hours after the fluoride application. Regular application of fluoride can effectively prevent dental caries in children, especially for children with high risk of caries, and is a routine dental care method for children. Most of the fluoride films are fruit flavored, which are easily accepted by children. In order to reduce the risk of caries in children, parents are recommended to take your child to the hospital, maternal and child health station or health community service center for fluoride application every 3-6 months to prevent caries.