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Antimicrobial efficacy of 0.05% cetylpyridinium chloride mouthrinses.
MedLine Citation:
PMID:  23039819     Owner:  NLM     Status:  Publisher    
AIMS: This study evaluated the antimicrobial activity of two commercially-available 0.05% cetylpyridinium chloride (CPC) mouthrinses with or without alcohol and examined its antimicrobial activity on oral bacterial species including fresh clinical isolates compared to a chlorhexidine mouthrinse and a control fluoride mouthrinse without CPC. MATERIALS AND RESULTS: Two different approaches were used to evaluate antimicrobial activity. First, the minimum inhibitory concentration (MIC) was determined for each mouthrinse against a panel of 25 micro-organisms including species associated with dental caries, gingivitis and periodontitis. Second, supragingival dental plaque obtained from 15 adults was incubated with the four mouthrinses to evaluate antimicrobial activity on micro-organisms in oral biofilms. Both CPC mouthrinses exhibited lower MIC's, that is, greater antimicrobial activity, against oral gram-negative bacteria especially periodontal pathogens and species implicated in halitosis such as Aggregatibacter actinomycemcomitans, Campylobacter rectus, Eikenella corrodens, Porphyromonas gingivalis, Prevotella intermedia and Solobacterium moorei than the control mouthrinse. Ex-vivo tests on supragingival plaque micro-organisms demonstrated significantly greater antimicrobial activity by the CPC mouthrinses (>90% killing, p<0.001) and the chlorhexidine rinse (>98% killing, p<0.05) compared to the control fluoride mouthrinse. CONCLUSIONS: While the chlorhexidine mouthrinse was most effective, mouthrinses containing 0.05% CPC formulated with or without alcohol demonstrated broad-spectrum antimicrobial activity against both laboratory strains and supragingival plaque bacteria compared to a control mouthrinse without CPC. SIGNIFICANCE AND IMPACT OF STUDY: These in vitro and ex vivo studies provide a biological rationale for previous clinical studies demonstrating the efficacy of CPC mouthrinses in reducing supragingival plaque and plaque-associated gingivitis. © 2012 The Authors Letters in Applied Microbiology © 2012 The Society for Applied Microbiology.
P K Sreenivasan; V I Haraszthy; J J Zambon
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-10-8
Journal Detail:
Title:  Letters in applied microbiology     Volume:  -     ISSN:  1472-765X     ISO Abbreviation:  Lett. Appl. Microbiol.     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-8     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8510094     Medline TA:  Lett Appl Microbiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2012 The Authors Letters in Applied Microbiology © 2012 The Society for Applied Microbiology.
Colgate Palmolive Company, Piscataway, NJ, USA.
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