Small white spots on teeth should be treated accordingly to the cause. Common causes include enamel hypoplasia, dental caries and dental fluorosis. Commonly used treatments include general treatment, drug treatment and surgical treatment. 1. Enamel hypoplasia: regular oral hygiene, brushing in the morning and evening, rinsing after meals. Fluoride coating or light-curing restoration is used for mild to moderate cases, while crown restoration is used for severe cases. 2. Dental caries: Brush and floss to remove plaque, eat a healthy diet, rinse your mouth after eating, and check your oral hygiene regularly. Fluoride such as sodium fluoride glycerin paste is commonly used to prevent caries. For serious cases, surgical treatment such as resin filling and inlay repair is needed. 3. Fluorosis: Bleaching method can be used if the teeth are intact. Fluorosis without substantial defects can be abraded, acid-etching coating method to keep the surface smooth. Fluorosis with substantial defects generally require the use of composite resin restorations, crown restoration. There may be other reasons for the appearance of small white spots on the teeth, it is recommended to go to a specialized hospital, under the guidance of a professional doctor to standardize the treatment. The above medications should be used by a professional doctor for treatment, avoid self-medication.