The natural sugars found in breastmilk, formula, and any liquid that may contain sugar/acid, can cause cavities when the decay-causing bacteria are present. However, the decay that can be associated with nursing or bottle-feeding can certainly be prevented! Avoid nursing your child to sleep or sending them to bed with anything except water in their bed-time and nap-time bottles. As infants, it is recommended to brush or wipe the gums and teeth with a soft bristle infant toothbrush or a wash cloth after each feeding. When your baby has several teeth, if you are feeding before bed, be sure to brush with a fluoridated toothpaste and floss just before bed to ensure sugars/acids/bacteria have been removed from the teeth and gums.