Using a soft bristle brush, begin daily brushing as soon as the child’s first tooth erupts. The ADA recommends using a smear of fluoridated toothpaste when brushing your child's teeth as soon as children's teeth begin to come into the mouth. A pea sized amount of fluoride toothpaste should then be used for ages 3 to 6 years old. Supervision should continue until about age eight to make sure they are doing a thorough job. However, each child is different and Dr. Amy can help you determine whether the child has the skill level to brush properly.