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Effect of N-chlorotaurine mouth rinses on plaque regrowth and plaque vitality

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Abstract

The purpose of this 4-day plaque regrowth study was to assess the effect of N-chlorotaurine (NCT) mouth rinses on plaque inhibition and plaque vitality. Eighty volunteers participated in this investigator-blind, randomized, clinical controlled study in parallel groups. No oral hygiene was permitted except rinsing with a 2% or 3% NCT mouth rinse, a positive or a negative control. Primary parameters were the plaque index (Silness and Löe, Acta Odontol Scand, 22:121–135, 1964) and plaque vitality (Netuschil et al., J Clin Periodontol, 16:484–488, 1989) after the final rinse. In addition, another plaque index (Turesky et al., J Periodontol, 41:41–43, 1970), plaque area, and bleeding on probing were recorded. All parameters were taken at baseline and day 5. U test was applied on a 5% error level. No differences in plaque inhibition were found between the two NCT formulations and the negative control. However, a statistically significant reduction of plaque vitality compared to the negative and positive control was observed. Discoloration of the tongue and unpleasant taste were recorded in participants in the NCT groups. NCT mouth rinses did not inhibit plaque regrowth, but they did reduce the vitality of plaque bacteria. Methods of prolonging the substantivity of the NCT mouth rinses should be investigated to enhance the antibacterial properties of these formulations.

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Conflict of Interest Statement

The authors declare that they have no conflict of interest.

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Authors and Affiliations

  1. Department of Conservative Dentistry, Medical Faculty, University of Technology Dresden, Fetscherstr. 74, 01307, Dresden, Germany

    K. Lorenz, D. Mayer, G. Bruhn, B. Noack, M. Brecx, L. Netuschil & T. Hoffmann

  2. Department of Statistics, University of Munich, Munich, Germany

    C. Heumann & H. Toutenburg

  3. Department of Hygiene, Microbiology and Social Medicine Division of Hygiene and Medical Microbiology, Innsbruck Medical University, Innsbruck, Austria

    M. Nagl & W. Gottardi

Authors
  1. K. Lorenz
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  2. D. Mayer
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  3. G. Bruhn
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  4. B. Noack
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  5. M. Brecx
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  6. C. Heumann
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  7. H. Toutenburg
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  8. L. Netuschil
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  9. M. Nagl
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  10. W. Gottardi
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  11. T. Hoffmann
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Correspondence to K. Lorenz.

Additional information

This publication is given in honour of Professor emeritus Dr. Dr. h. c. Peter Gaengler.

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Lorenz, K., Mayer, D., Bruhn, G. et al. Effect of N-chlorotaurine mouth rinses on plaque regrowth and plaque vitality. Clin Oral Invest 13, 9–14 (2009). https://doi.org/10.1007/s00784-008-0207-7

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  • DOI: https://doi.org/10.1007/s00784-008-0207-7

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