Is Breastfeeding Linked to Tooth Decay? By Kelly Bonyata, BS, IBCLC It's often said that breastfeeding (particularly while lying down at night) will cause tooth decay, just like letting a baby sleep with a bottle of milk can cause "baby bottle mouth." Essentially, a valid link has not been made between nursing (nighttime or otherwise) and cavities. Before the use of the baby bottle, dental decay in baby ... Read More