Mutans streptococci and lactobacilli colonization in predentate children from the neonatal period to seven months of age

Plonka, K. A., Pukallus, M. L., Barnett, A. G., Walsh, L. J., Holcome, T. H. and Seow, W. K. (2012) Mutans streptococci and lactobacilli colonization in predentate children from the neonatal period to seven months of age. Caries Research, 46 3: 213-220. doi:10.1159/000337353


Author Plonka, K. A.
Pukallus, M. L.
Barnett, A. G.
Walsh, L. J.
Holcome, T. H.
Seow, W. K.
Title Mutans streptococci and lactobacilli colonization in predentate children from the neonatal period to seven months of age
Journal name Caries Research   Check publisher's open access policy
ISSN 0008-6568
1421-976X
Publication date 2012-06
Sub-type Article (original research)
DOI 10.1159/000337353
Volume 46
Issue 3
Start page 213
End page 220
Total pages 8
Place of publication Basel, Switzerland
Publisher Karger
Collection year 2013
Language eng
Formatted abstract
Background/Aims: The aim of this study was to investigate the colonization of mutans streptococci (MS) and lactobacilli (LB) in predentate children from the neonatal period to 7 months.

Methods: A total of 957 mother-and-child pairs were recruited from birth and followed up at 7 months. The 283 children who did not have erupted teeth at the second visit were included in the study. Oral mucosal swabs were taken, and the presence of MS and LB was determined using a commercial microbiological culture kit.

Results: At mean ages of 34 days and 7 months, 9 and 11% of the infants, respectively, showed the presence of MS. In contrast, LB presence increased from 24 to 47% (p < 0.0001). MS presence in the neonatal period was associated with maternal MS counts of >105 CFU/ml (p = 0.05), while LB presence was associated with natural birth (p = 0.03) and maternal LB presence (p = 0.02). At 7 months, MS presence was associated with maternal MS counts (p = 0.02) and LB counts of >105 CFU/ml (p = 0.007). Additional predictors of MS presence at 7 months were a child’s MS counts of >105 CFU/ml at the neonatal visit (p = 0.019) and nighttime bottle feeding (p = 0.024). LB presence at 7 months was associated with maternal LB (p < 0.001) and MS presence (p = 0.02).

Conclusions: MS and LB can be detected by culture in the oral cavity as early as 34 days after birth. Their infection rates increase to 11 and 47%, respectively, by the time the children reach the end of the predentate stage of oral development.
Keyword Lactobacilli
Mutans streptococci
Oral colonization
Predentate children
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2013 Collection
School of Dentistry Publications
 
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Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
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Created: Mon, 21 May 2012, 05:45:51 EST by Professor Laurence Walsh on behalf of School of Dentistry