The sooner the better! Starting at birth, clean your child's gums with a soft infant toothbrush or cloth and water. As soon as the teeth begin to appear, start brushing twice daily using fluoridated toothpaste and a soft, age-appropriate sized toothbrush. Use a "smear" of toothpaste to brush the teeth of a child less than 2 years of age. For the 2-5 year old, dispense a "pea-size" amount of toothpaste and perform or assist your child's toothbrushing. Remember that young children do not have the ability to brush their teeth effectively.Children should spit out and not swallow excess toothpaste after brushing.