Effect of S. mutans combinations with bifidobacteria/lactobacilli on biofilm and enamel demineralization
Braz. oral res. (Online)
;
35: e030, 2021. tab
Article
in English
| LILACS, BBO
| ID: biblio-1153618
ABSTRACT
Abstract The present study evaluated the ability of Bifidobacterium and Lactobacillus species associated with streptococci to increase insoluble extracellular polysaccharide (EPS) production and initial caries lesion progression. Bovine enamel blocks (n = 190; 4 mm x 4 mm) were prepared, selected according to initial surface hardness (SH), and divided into two groups a) double combinations S. mutans with Bifidobacterium or Lactobacillus, and b) triple combinations S. mutans and S. sobrinus with Bifidobacterium or Lactobacillus species. The blocks were exposed to the bacterial associations for 7 days. Subsequently, quantity of EPS from biofilms and caries lesion depth were determined by means of colorimetric and cross-sectional enamel hardness (ΔKHN) analysis. The data were submitted to one-way analysis of variance, followed by the Bonferroni test (p < 0.05). S. mutans with B. animalis or B. dentium produced a higher quantity of EPS; S. mutans + B. animalis led to the highest ∆KHN. S. mutans + S. sobrinus + B. longum induced greater EPS and ∆KHN values. In conclusion, associations of B. animalis and B. longum with streptococci promoted EPS production and caries lesion progression.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Tooth Demineralization
/
Dental Caries
Type of study:
Observational study
/
Prevalence study
/
Risk factors
Limits:
Animals
Language:
English
Journal:
Braz. oral res. (Online)
Journal subject:
Dentistry
Year:
2021
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual Paulista/BR
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