Although kids can begin to “help” with the brushing process beginning around the age of three, we recommend waiting until your kids are at least six before letting them handle this task completely on their own. Before the age of six, kids lack the dexterity and sometimes focus to clean every tooth. They also tend to want to swallow the toothpaste. Until your child shows the responsibility to handle toothbrushing on their own, continue helping them with this activity each morning and night.