What is dental fluorosis? Dental fluorosis is also known as plaque enamel. It is a dental disease associated with high levels of fluoride in drinking water. Fluoride itself has a dual effect on teeth. When the fluorine content of drinking water is 1ppm, it has the effect of preventing caries and does not lead to the formation of dental fluorosis. The manifestation of dental fluorosis: light type is also called chalky type, which shows that the enamel surface is like white chalk-like, opaque plaque, i.e. chalky plaque; moderate type is also called coloring type, which shows yellowish brown or dark brown plaque, the upper front teeth are the most obvious; severe type is also called defective type, which shows yellowish brown plaque on most teeth or even the whole teeth, at the same time, there are linear, dotted or sulcus-like defects, deep staining in the depression, and the tooth surface loses luster. The harm of dental fluorosis: It seriously affects the health and beauty, and causes psychological burden and harm to patients. Traditional treatment methods of dental fluorosis: 1, bleaching method: simple bleaching is easy to recolor and uneven color. 2, restoration method: using photosensitive curing; removing excessive dental tissue and unsatisfactory color. 3, porcelain veneer: A crown or pile crown and other methods of restoration, too much damage to the tooth body. 4.Porcelain veneers: A small number of severe fluorosis teeth can be restored by porcelain veneers; however, there are many cases being over-treated, causing permanent irreversible damage to the teeth. The latest minimally invasive aesthetic restoration method for fluorosis teeth: 1, effectively remove the surface coloring of fluorosis teeth while preserving the tooth tissue as much as possible; 2, improve the wettability of the enamel surface, which promotes the whitening effect and remineralization repair and stabilizes the decoloration effect; 3, with cold light whitening can not only decolorize the stained area, but also whiten the non-stained area; 4, according to the patient’s requirements, the depth of fluorosis tooth coloring, the degree of lesion, the The most appropriate and personalized treatment method will be chosen based on the patient’s requirements, the depth of fluorosis, the degree of lesion, the location, the color of neighboring teeth, the size of the tooth, and the hardness of the enamel.