Cavity-causing bacteria can be transmitted to babies
“Parents should be aware that bacteria that cause dental decay can be transmitted from adult to child by sharing eating utensils, or by the parent sucking on a baby’s pacifier to clean it…”
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The American Dental Association (ADA) warns in this article that the adult mouth can contain bacteria that may be harmful to a baby. An article published recently in Pediatrics, the journal of the American Academy of Pediatrics, indicated that adult saliva has unique immunological benefits. These immunological benefits, however, according to the ADA, do not overcome the danger that bacteria in the adult mouth pose for an infant.
Dr. Rodney D. Chowning, General and Cerec Dentist, Denton, TX