Remedies for baby teeth demineralization, as follows: I. Generally use medication, when demineralization occurs in the milk front teeth, you can apply alcohol cotton ball to clean the tooth surface and blow dry, and repeatedly rub sodium fluoride or stannous fluoride and other solutions, after forming calcium fluoride, to promote enamel remineralization and improve the hardness of enamel. Second, the milk molar can be wiped with silver nitrate or silver fluoride solution, silver ions can be deposited in the dentin tubules, inhibit the growth and reproduction of bacteria in the tubules, and enhance the anti-caries ability of teeth. Thirdly, if the demineralization of teeth is serious and the defect is formed, the edge can be trimmed with sharp needle and the cavity can be prepared and filled with composite resin. If the large area of demineralization affects the appearance, resin preformed crown can be made to restore.