Yes! Babies can actually “catch” cavities from their caregivers. In 71 percent of the cases, the mother is the source. Research indicates that the cavity-causing bacteria known as streptococcus mutans can be transmitted from mothers to infants even before teeth erupt. This is just another reason that we promote entire family oral health and not just the importance for children. The better the mother’s oral health is, there is less chance the baby will develop oral health problems as he or she grows.