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Oral Health and Preventive Dentistry



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Oral Health Prev Dent 12 (2014), No. 4     18. Dec. 2014
Oral Health Prev Dent 12 (2014), No. 4  (18.12.2014)

Page 365-371, doi:10.3290/j.ohpd.a31674, PubMed:24624400

In Vitro Comparison of Commercial Oral Rinses on Bacterial Adhesion and Their Detachment from Biofilm Formed on Hydroxyapatite Disks
Babu, Jegdish P. / Garcia-Godoy, Franklin
Purpose: This in vitro study was designed to assess the effectiveness of three oral rinses on bacterial adherence to epithelial cells and hydroxyapatite surfaces. The role of oral rinses on the detachment of bacteria from biofilm was also evaluated.
Materials and Methods: The efficacy of three oral rinses, Acclean, Noplak and Prevention were tested against a wide range of oral bacteria. Oral rinse antimicrobial activity was determined by an MTT assay for bacterial viability, by live/ dead staining and by measuring the bacterial metabolic activity using an XTT assay.
Results: The two oral rinses that contained 0.12% chlorhexidine had the greatest antibacterial activity on both planktonic and bio lm-grown organisms when compared to the Prevention oral rinse.
Conclusion: Both Acclean and Noplak were extremely effective in lowering the number of bacteria attached to buccal epithelial cells and pelllicles. In addition, these two oral rinses were also effective against the biofilm bacteria.

Keywords: chlorhexidine, bacterial viability, biofilm, dental plaque, oral rinse, zinc chloride