White spots on incisors may be caused by demineralization, enamel hypoplasia or dental fluorosis, which should be restored with remineralization solution or resin. 1. Tooth demineralization can be seen in the external acidic substances and teeth for a long time contact, resulting in tooth surface demineralization. Enamel hypoplasia can be caused by hereditary or developmental abnormalities, resulting in congenital demineralization of the enamel. According to the degree of demineralization, can first be used in remineralization solution to promote tooth remineralization. 2. Dental fluorosis is due to fluoride into the body caused by enamel hypoplasia, mineralization, resulting in chalky white plaque, can also be used to remineralize the liquid local coating, for the teeth caused by defects, can be used to resin repair, crown repair, and so on. White spots on the incisors are recommended to seek medical treatment in time to avoid causing further tooth defects.