There are many factors which can cause tooth decay. One common cause is the frequent and prolonged exposure of the baby's teeth to drinks that contain sugar. An example would be infants or toddlers who snack with a bottle (juices) between meals frequently. Research shows that about five minutes after teeth are exposed to the sugar, bacteria produce the acids to begin the destruction of the enamel.
Tooth decay is also a transmissible disease. Studies show that bacteria are transmitted from mothers to children through saliva. Mothers with untreated cavities have higher levels of bacteria in their mouth and are more likely to pass bacteria to their children. An example would be the mother who puts the baby's feeding spoon in her mouth and then into her baby's mouth passing bacteria to the baby.
