Acid tolerance properties of dental biofilms in vivo
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, i...
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doaj-ad5a8c099db64f90847209497f85b69a2020-11-24T22:03:21ZengBMCBMC Microbiology1471-21802017-07-011711810.1186/s12866-017-1074-7Acid tolerance properties of dental biofilms in vivoA Senneby0JR Davies1G Svensäter2J Neilands3Department of Oral and Maxillofacial Radiology, Malmö University, Faculty of OdontologyDepartment of Oral Biology, Faculty of Odontology, Malmö UniversityDepartment of Oral Biology, Faculty of Odontology, Malmö UniversityDepartment of Oral Biology, Faculty of Odontology, Malmö UniversityAbstract 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.http://link.springer.com/article/10.1186/s12866-017-1074-7MicrobiologyPhenotypePlaquepHObserver performanceAcid tolerance |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
A Senneby JR Davies G Svensäter J Neilands |
spellingShingle |
A Senneby JR Davies G Svensäter J Neilands Acid tolerance properties of dental biofilms in vivo BMC Microbiology Microbiology Phenotype Plaque pH Observer performance Acid tolerance |
author_facet |
A Senneby JR Davies G Svensäter J Neilands |
author_sort |
A Senneby |
title |
Acid tolerance properties of dental biofilms in vivo |
title_short |
Acid tolerance properties of dental biofilms in vivo |
title_full |
Acid tolerance properties of dental biofilms in vivo |
title_fullStr |
Acid tolerance properties of dental biofilms in vivo |
title_full_unstemmed |
Acid tolerance properties of dental biofilms in vivo |
title_sort |
acid tolerance properties of dental biofilms in vivo |
publisher |
BMC |
series |
BMC Microbiology |
issn |
1471-2180 |
publishDate |
2017-07-01 |
description |
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. |
topic |
Microbiology Phenotype Plaque pH Observer performance Acid tolerance |
url |
http://link.springer.com/article/10.1186/s12866-017-1074-7 |
work_keys_str_mv |
AT asenneby acidtolerancepropertiesofdentalbiofilmsinvivo AT jrdavies acidtolerancepropertiesofdentalbiofilmsinvivo AT gsvensater acidtolerancepropertiesofdentalbiofilmsinvivo AT jneilands acidtolerancepropertiesofdentalbiofilmsinvivo |
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1725831902300995584 |