If the teeth appear small white spots, you need to pay attention to the teeth cleaning, enamel development, dental fluorosis, etc.. 1. Inadequate dental cleaning: this is the main reason for the appearance of white spots and white spots on the teeth. Poor oral hygiene, inadequate dental cleaning or incorrect brushing, etc., leads to food debris on the surface of the teeth, which in turn produces plaque, demineralization of enamel, white spots, and, if it continues to develop, caries will form. 2. Enamel underdevelopment: generally due to nutritional deficiencies, periodontal infections, heredity and other factors, enamel underdevelopment occurs, which can also lead to small white spots on the teeth. 3. Dental fluorosis: seen in drinking water fluoride content is too high, manifested as tooth enamel lost part of the luster, showing white spots, white spots. You should pay attention to oral hygiene in daily life and learn how to brush your teeth correctly. When the teeth appear small white spots, it is recommended to go to the hospital in time for examination, if necessary, under the guidance of the doctor to receive appropriate treatment.