A longitudinal study comparing mutans streptococci and lactobacilli colonisation in dentate children aged 6 to 24 months

Plonka, K. A., Pukallus, M. L., Barnett, A. G., Walsh, L. J., Holcombe, T. F. and Seow, W. K. (2012) A longitudinal study comparing mutans streptococci and lactobacilli colonisation in dentate children aged 6 to 24 months. Caries Research, 46 4: 385-393.


Author Plonka, K. A.
Pukallus, M. L.
Barnett, A. G.
Walsh, L. J.
Holcombe, T. F.
Seow, W. K.
Title A longitudinal study comparing mutans streptococci and lactobacilli colonisation in dentate children aged 6 to 24 months
Journal name Caries Research  (ERA 2012 Listed)    (ERA 2010 Rank A)   Check publisher's open access policy
Publication date 2012-07
Sub-type Article
DOI 10.1159/000339089
Volume number 46
Issue number 4
ISSN 0008-6568; 1421-976X
Start page 385
End page 393
Total pages 9
Place of publication S. Karger
Publisher Basel, Switzerland
Collection year 2013
Language eng
Abstract This longitudinal study aimed to investigate variables associated with colonisation of mutans streptococci (MS) compared with lactobacilli (LB) colonisation in a cohort of children (n = 214) from the time of first tooth eruption at approximately 6 months until 24 months of age. Repeated plaque and salivary samples were collected from the same infants at 6, 12, 18 and 24 months and assayed for MS and LB using a microbiological culture kit. Children having both MS and LB increased from 4% at 6 months to 13% at 12 and 18 months to 20% at 24 months (p = 0.004). LB presence at 6 months was correlated with MS presence at 12, 18 and 24 months (r = 0.21 to r = 0.46, p = 0.02), while MS presence at 6 months correlated with LB presence at all other times (r = 0.19 to r = 0.31, p = 0.03). At 6 and 12 months, the key variables for MS colonisation included unrestored dental cavities in the mother (p = 0.03), mother not persisting with toothbrushing (p = 0.001) and bottle taken to bed at night (p = 0.033), while the only significant variable for LB colonisation was natural birth (p = 0.01). At 24 months, the significant variables for MS colonisation were condiments added to pacifier (p = 0.022) and child being uncooperative for toothbrushing (p = 0.025), while the significant variables for LB colonisation were pregnancy problems (p = 0.028) and child being uncooperative for toothbrushing (p = 0.013). The ages 6–12 months thus represent a time period when key variables may be controlled to reduce MS and LB colonisation.
Keyword Early childhood caries
Lactobacilli
Mutans streptococci
Oral colonisation
Primary teeth
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article
Collections: Official 2013 Collection
School of Dentistry Publications
 
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