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Oral Health & Preventive Dentistry

Edited by Prof. Dr. Jean-François Roulet, Prof. Dr. Dr. Niklaus P. Lang, Prof. Dr. Palle Holmstrup

Official journal of the Academy of Minimally Invasive Dentistry, the World Congress of Microdentistry, and the European Society of Preventive Dentistry

ISSN (print) 1602-1622 • ISSN (online) 1757-9996


Summer 2009
Volume 7 , Issue 2

Pages: 137-145
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Antimicrobial Efficacy of Various Disinfecting Solutions in Reducing the Contamination of the Toothbrush - A Comparative Study

Balappanavar, Aswini Y. / Nagesh, L. / Ankola, Anil V. / Tangade, Pradeep S. / Kakodkar, Pradnya / Varun, S.

Background: Contaminated toothbrushes may play a role in the transmission of local or systemic diseases. As modern dentistry emphasises prevention and infection control, toothbrushes should be correctly stored, disinfected and changed at regular intervals. Purpose: The aim of this study was to test the efficacy of 3% neem, 2% triclosan, 0.2% chlorhexidine gluconate and 1% sodium hypochlorite as toothbrush disinfectants against Streptococcus mutans. Materials and Methods: This was a double-blind, linear crossover, within-group comparative experimental trial conducted among 40 children aged 12 to 15 years. The study was divided into five phases: (1) distilled water (control); (2) 3% neem; (3) 2% triclosan; (4) 0.2% chlorhexidine gluconate; and (5) 1% sodium hypochlorite. The toothbrushes were collected after 5 days of brushing and were soaked for 12 h in antimicrobial solutions of separate phases, after which the toothbrushes were submitted for microbial analysis to check for the presence of S. mutans. Results: The mean colony-forming units (CFUs) of S. mutans at phase 1 when compared with baseline was not significant (P = 0.17). The other phases had a significant drop in mean CFUs of S. mutans from baseline (P < 0. 001). The percentage reduction of mean CFUs of S. mutans from baseline was the highest in phase 2 (86%). Conclusion: It can be concluded that all the solutions are effective in toothbrush decontamination, but 3% neem has greater efficacy than other solutions.
Keywords: antimicrobial solutions, contamination, neem, Streptococcus mutans, toothbrush, triclosan

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