Influence of the maternal vaginal microbiota on the oral microbiota of the newborn.

The present study was conducted on 50 expectant mothers and the newborns, with the aim of observing if any, the relationship, acquisition and survival of the maternal vaginal microbiota to the oral microflora after birth. The oral cavity was sterile in 6% of the newborns. The differences between the counts of S. aureus, Klebsiella, Lactobacillus, Ps. aeruginosa and Veillonella sp. in the mother and in the child were of statistical significance. No statistically significant difference was observed between the counts of S. epidermidis in the mother and in the child. Of the microorganisms present at birth, only S. epidermidis persisted in the oral cavity. At the end of the observation period, S. salivarius was the predominant oral microorganism.