Document Detail


Mutans streptococci remained viable on toothbrush bristles, in vivo, for 44 h.
MedLine Citation:
PMID:  25247225     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
BACKGROUND: Toothbrushes harbor a high number of cariogenic microorganisms.
AIM: To investigate the viability of mutans streptococci (MS) on toothbrushes bristles and the production of extracellular polysaccharide (ECP) related to drying time.
DESIGN: Twenty children were submitted to brushing without dentifrice. Toothbrushes were kept at room temperature from 0 to 48 h and then submitted to microbiological processing. The number of MS colonies/biofilms was expressed according to scores: 0=no colonies were detected; 1=1 to 50; 2=51 to 100; 3=over 100. The amount of ECP was evaluated according to scores: 0=absence; 1=ECP recovering until 50% of the surface; 2=ECP recovering more than 50% of the surface. Data were analyzed by Wilcoxon test (α=5%).
RESULTS: At the periods of 0 to 16 h, the toothbrushes had intense bacterial contamination (score 3). From the 18-h, there was a statistically significant decrease in the MS viability (P=0.0078), with predominance of score 1 on periods of 20 to 44 h. The most detected ECP amount was at 0- and 12-h period (P<0.05) with reduction until 32-h period.
CONCLUSIONS: Mutans streptococci remained viable on toothbrushes bristles, in vivo, for 44 h.
Authors:
Lea Assed Bezerra Da Silva; Paulo Nelson-Filho; Marta Estela Saravia; Andiara De Rossi; Marília Pacífico Lucisano; Raquel Assed Bezerra Da Silva
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of paediatric dentistry / the British Paedodontic Society [and] the International Association of Dentistry for Children     Volume:  24     ISSN:  1365-263X     ISO Abbreviation:  Int J Paediatr Dent     Publication Date:  2014 Sep 
Date Detail:
Created Date:  2014-09-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9107511     Medline TA:  Int J Paediatr Dent     Country:  England    
Other Details:
Languages:  eng     Pagination:  367-72     Citation Subset:  D    
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