Children's toothbrush is designed for children who are in development. There are many types and styles. Some toothbrushes are designated as suitable for deciduous teeth eruption period, suitable for deciduous teeth row, suitable for mixed permanent dentition teeth, etc .; some also indicate that it is suitable for 3-6 years old, 6 ~ It is used by children such as 9 years old; in addition, there are toothbrushes that are selected for use according to the conditions in the children's oral cavity; if a fixed orthodontic appliance is worn in the oral cavity, some special toothbrushes should be used. For example, a toothbrush with a "V" shape. https://www.samemater.com/toothb...-cartoon-toothbrush.html