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Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

Publication:
November 2005
Volume 36 , Issue 10

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Antimicrobial spray for toothbrush disinfection: An in vivo evaluation

Sandra Sato, DDS, MS/Vinicius Pedrazzi, DDS, MS, PhD/Elza Helena Guimaraes Lara, MS, PhD/Heitor Panzeri, DDS, MS, PhD2/Rubens Ferreira de Albuquerque, Jr, DDS, MS, PhD/Izabel Yoko Ito, MS PhD

Pages: 812816
PMID: 16261797

Objective: The aim of this study was to evaluate the efficacy of a spray containing an antimicrobial solution for toothbrush disinfection. Methods and Materials: Three different solutions were sprayed on toothbrush bristles among 30 adults after they had brushed: (1) basic formulation (base) plus chlorhexidine; (2) base only, and (3) sterile tap water (control). Each solution was tested for 1 week. After that, the toothbrushes were collected and sonicated in Letheen Broth, diluted in 10-fold series, and plated on selective and nonselective media for detection of anaerobes, aerobes, streptococci, and gram-negative bacilli. After incubation, the colonies of those microorganisms were counted. Presence of mutans streptococci on the bristles was also confirmed. Results: Spray 1 produced a significant reduction in the microbial contamination of toothbrushes for all the microorganisms, spray 2 provided some reduction of contaminants, and spray 3 demonstrated the least antimicrobial effect. Conclusion: The antimicrobial spray with chlorhexidine proved to be an effective and practical means for toothbrush disinfection. (Quintessence Int 2005;36:812816)
Key words: antimicrobial agent, bacterial contamination, biofilm, chlorhexidine, disinfection, oral hygiene aids, spray, toothbrush

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