You should start cleaning your baby's teeth as soon as they break through the gum line. This is between four and six months old for most babies. Twice a day you can use a piece of gauze moistened with water to wipe plaque from your baby's teeth and gums. Once your baby has several teeth start using Earth's Best gum toothbrush and toothpaste together. Made with delicious all-natural flavors plus calcium lactate this toothpaste safely and gently cleanses delicate gums and promotes strong teeth. Our fluoride-free formula makes this toothpaste completely safe if swallowed.