Salivary microbial profiles in 5-year old children with oral clefts: a comparative study
Abstract
Aim
To compare the salivary microbial profile in children with oral clefts to matched non-cleft controls in a cross-sectional study.
Methods
The cleft group consisted of 80 children aged 5 years and 144 age-matched non-cleft children were recruited as a control group. Stimulated whole saliva samples were collected and analysed with checkerboard DNA–DNA hybridisation using 12 pre-determined bacterial probes. Background data on caries, oral hygiene, dietary habits and fluoride exposure were collected from clinical examinations and questionnaires.
Results
Children in the cleft group had a significantly higher prevalence of dental caries but only minor differences in the salivary microbial profile were found. In general, the cleft-children displayed a lower prevalence of common commensal species (e.g. Streptococcus, Fusobacterium) when compared with the non-cleft controls. The differences were statistically significant (p < 0.05) but the clinical significance was unclear.
Conclusions
The profile of the salivary microflora in 5-year-old children with and without oral clefts was basically similar and displayed only marginal differences with respect to commensal bacteria.
Keywords
Salivary microflora Caries Oral hygiene Cleft lip and palate ChildrenNotes
Acknowledgements
The authors would like to thank Mrs Susanne Blomqvist, Section for Oral Microbiology, Institute of Odontology at Sahlgrenska Academy at University of Gothenburg, for her skilled technical assistance. This work was supported by Region Jönköping County, Medical Research Council of Southeast Sweden (FORSS), Academy for Health and Care Region Jönköping County (Futurum), the Swedish Dental Association, and the Swedish Society of Paediatric Dentistry (SSPD).
Compliance with ethical standards
Conflict of interest
The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
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