Document Detail

Clinical trial in adults of an antimicrobial varnish for reducing mutans streptococci.
MedLine Citation:
PMID:  1960249     Owner:  NLM     Status:  MEDLINE    
An abbreviated treatment with a chlorhexidine-containing varnish was compared with a similar treatment with a placebo varnish and with a prophylaxis alone for its effects on the numbers of detectable salivary mutants streptococci in 51 adults. The varnishes, applied once weekly for four weeks, were held in place with a covering layer of either of two polyurethane sealants (FluorProtector or Adhesit). On the first appointment, the varnish-sealant combination was applied to all tooth surfaces, but on succeeding appointments only the occlusal and approximal surfaces were covered. The chlorhexidine varnish, covered with either sealant, reduced the salivary mutans streptococci by an average of 3 logs (99.9%) in all of the 20 subjects treated, and below detectable levels for at least four weeks in nine of them. In the groups receiving placebo varnish-sealant combinations, the mean log number of mutans streptococci of the subjects was reduced only by approximately 0.5 log (32%), and none of the subjects experienced loss of their detectable mutans streptococci for four weeks, although one subject did so for three weeks. No significant difference between the effects of the two polyurethane sealants was observed. Treatment with a single prophylaxis had no effect on mutans streptococcus levels. Subjects treated with chlorhexidine varnish also experienced an increase in S. sanguis and a small decrease in yeasts. Loss of detectable mutans streptococci did not cause changes in the numbers of other micro-organisms examined, beyond those observed with chlorhexidine varnish treatment alone.
H J Sandham; J Brown; K H Chan; H I Phillips; R C Burgess; A J Stokl
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Publication Detail:
Type:  Clinical Trial; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of dental research     Volume:  70     ISSN:  0022-0345     ISO Abbreviation:  J. Dent. Res.     Publication Date:  1991 Nov 
Date Detail:
Created Date:  1992-01-03     Completed Date:  1992-01-03     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0354343     Medline TA:  J Dent Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1401-8     Citation Subset:  D; IM    
Faculty of Dentistry, University of Toronto, Ontario, Canada.
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MeSH Terms
Acrylic Resins / pharmacology*
Analysis of Variance
Anti-Infective Agents, Local / pharmacology
Chlorhexidine / pharmacology*
Colony Count, Microbial
Composite Resins*
DMF Index
Dental Caries / prevention & control*
Dental Materials / pharmacology*
Double-Blind Method
Drug Combinations
Fluorides, Topical / pharmacology*
Polyurethanes / pharmacology*
Saliva / microbiology
Silanes / pharmacology*
Streptococcus mutans / drug effects*
Reg. No./Substance:
0/Acrylic Resins; 0/Anti-Infective Agents, Local; 0/Composite Dental Resin; 0/Composite Resins; 0/Dental Materials; 0/Drug Combinations; 0/Fluorides, Topical; 0/Polyurethanes; 0/Silanes; 55-56-1/Chlorhexidine; 64441-49-2/Fluor Protector

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

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