Acid tolerance properties of dental biofilms in vivo

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Acid tolerance properties of dental biofilms in vivo

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Publication Article, peer reviewed scientific
Title Acid tolerance properties of dental biofilms in vivo
Author Senneby, Anna ; Davies, Julia ; Svensäter, Gunnel ; Neilands, Jessica
Research Centre Biofilms - Research Center for Biointerfaces
Date 2017
English abstract
Background: The ecological plaque hypothesis explains caries development as the result of the enrichment of acid tolerant bacteria in dental biofilms in response to prolonged periods of low pH. Acid production by an acid tolerant microflora causes demineralisation of tooth enamel and thus, individuals with a greater proportion of acid tolerant bacteria would be expected to be more prone to caries development. Biofilm acid tolerance could therefore be a possible biomarker for caries prediction. However, little is known about the stability of biofilm acid tolerance over time in vivo or the distribution throughout the oral cavity. Therefore the aim of this study was to assess intra-individual differences in biofilm acid-tolerance between different tooth surfaces and inter-individual variation as well as stability of acid tolerance over time. Results: The majority of the adolescents showed low scores for biofilm acid tolerance. In 14 of 20 individuals no differences were seen between the three tooth sites examined. In the remaining six, acid-tolerance at the premolar site differed from one of the other sites. At 51 of 60 tooth sites, acid-tolerance at baseline was unchanged after 1 month. However, acid tolerance values changed over a 1-year period in 50% of the individuals. Conclusions: Biofilm acid tolerance showed short-term stability and low variation between different sites in the same individual suggesting that the acid tolerance could be a promising biological biomarker candidate for caries prediction. Further evaluation is however needed and prospective clinical trials are called for to evaluate the diagnostic accuracy.
DOI https://doi.org/10.1186/s12866-017-1074-7 (link to publisher's fulltext.)
Link https://doi.org/10.1186/s12866-017-1074-7 .Icon
Publisher BioMed Central
Host/Issue BMC Microbiology;
Volume 17
ISSN 1471-2180
Language eng (iso)
Subject Microbiology
Phenotype
Plaque
pH
Observer performance
Acid tolerance
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/23647 Permalink to this page
Link to publication in DiVA Find this research publication in DiVA.
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