Why is caring for your baby’s teeth important? Regularly cleaning your baby’s gums will reduce food residues in their mouths (including those that can cause tooth decay) and remove food and milk deposits. This will keep their mouth and gums nice and clean, whilst gently introducing your baby to the daily dental routine. What causes tooth decay? When we eat, the microorganism that live in our mouths react with the sugars in our food to produce acid. This acid then attacks our tooth enamel and causes tooth decay. This is why it’s so important for you to help your little one to look after their teeth - they will need your help to brush their teeth until they are at least 6 years old. How often should I clean my baby’s tongue? Gently wipe over gums, tongue and cheeks twice a day. How long should I brush my baby’s teeth for? You should aim to brush your little’s one’s teeth for 2 minutes, twice a day. The key with toothbrushing is to make it fun and to show your little one that you (and any other members of your household) clean your teeth too.