Milk, formula, juices, and other sweet drinks such as soda all have sugar in them. Sucking on a bottle filled with liquids that have sugar in them can cause tooth decay.
Decayed teeth can cause pain and can cost a lot to fill.
During the day, do not give your baby a bottle filled with sweet drinks to use like a pacifier. If your baby uses a pacifier, do not dip it in anything sweet like sugar or honey. Near his first birthday, you should teach your child to drink from a cup instead of a bottle. Ask your dentist when to bring your child in for his first visit. Usually, the dentist will want to see a child between ages 1 and 2.