Children’s dental plaque is generally formed by proteins in saliva adhering to and depositing on the tooth surface, and can be cleaned by brushing, flossing, and scaling. 1. Brushing: Brushing is the most effective way to remove plaque from the occlusal surfaces of smooth teeth. Children should brush their teeth carefully to remove plaque from the surface of the teeth. 2. Flossing: For plaque in the crevices of the adjacent surfaces of the teeth, which cannot be completely removed by brushing, flossing can be used to remove it. 3. Scaling: Due to the long-term deposition of plaque, calcification will occur, forming dental calculus. At this time, it is recommended to go through the regular dental scaling to remove dental calculus and achieve the effect of removing dental plaque. Plaque has a certain causal relationship with caries and periodontal disease, parents are advised to pay more attention to children’s teeth cleaning in daily life in order to prevent some oral diseases.