Document Detail

The influence of specific foods and oral hygiene on the microflora of fissures and smooth surfaces of molar teeth: A 5-day study.
MedLine Citation:
PMID:  10460958     Owner:  NLM     Status:  MEDLINE    
A group of 20 students, harbouring >10(4) mutans streptococci per millilitre of saliva, was enrolled into the study. Models for sampling, reproducibly, the dental plaque present in specific sites (fissure and smooth surface) on the dentition were developed and validated. Withdrawal of normal oral hygiene procedures for only 1 day resulted in approximately 10-fold increases in the number of micro-organisms recovered from both sites. The effect of supplementing the subjects' diets with particular food items given 5 times per day [lemonade (5.8% w/v sugars, 250 ml), biscuits (digestive biscuits, 67.6% w/w carbohydrate of which 22% w/w was sugars and 45.6% w/w was starch), caramel toffees and sugar lumps] on the number of micro-organisms recovered and on the composition of the flora at both sites was determined. Dental plaque samples were taken after 5 days and it was found that supplementation of the diet with toffee and sugar lumps resulted in significantly more micro-organisms at both sampling sites. The supplementation of the diets with lemonade or biscuits did not significantly alter the numbers of micro-organisms recovered from either site. The percentage composition of the plaque samples from both dental sites remained relatively unaffected by oral hygiene although there were lower levels of mutans streptococci which might be related to the use of an antimicrobial toothpaste containing fluoride, triclosan and zinc citrate. This study suggests that the cariogenicity of certain sucrose-containing foods may, in part, be due to the enhancement of plaque accumulation in addition to other effects on the percentage composition of the plaque which may become manifest on prolonged usage of these dietary foodstuffs. These observations are consistent with dietary survey findings which often find consumption of confectionery related to caries experience or incidence.
D Beighton; S R Brailsford; E Lynch; H Y Chen; D T Clark
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Caries research     Volume:  33     ISSN:  0008-6568     ISO Abbreviation:  Caries Res.     Publication Date:    1999 Sep-Oct
Date Detail:
Created Date:  1999-09-29     Completed Date:  1999-09-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0103374     Medline TA:  Caries Res     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  349-56     Citation Subset:  D; IM    
Joint Microbiology Research Unit, Guy's King's and St. Thomas' Dental Institute, Whitechapel, England.
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MeSH Terms
Actinomyces / isolation & purification
Candy / adverse effects
Colony Count, Microbial
Dental Enamel / microbiology*
Dental Fissures / microbiology*
Dental Plaque / microbiology*
Dietary Sucrose / adverse effects*
Lactobacillus / isolation & purification
Neisseria / isolation & purification
Oral Hygiene / utilization
Reproducibility of Results
Statistics, Nonparametric
Streptococcus / isolation & purification
Streptococcus mutans / isolation & purification*
Veillonella / isolation & purification
Yeasts / isolation & purification
Reg. No./Substance:
0/Dietary Sucrose

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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