Journal of Dentistry
Volume 36, Issue 10 , Pages 795-800, October 2008

The whitening effect of enzymatic bleaching on tetracycline

  • Isabel Gimeno

      Affiliations

    • Tel.: +34 971 173171.
    • ,
  • Pere Riutord

      Affiliations

    • Tel.: +34 971 173146.
    • ,
  • Pedro Tauler

      Affiliations

    • Tel.: +34 971 173171.
    • ,
  • Josep A. Tur

      Affiliations

    • Tel.: +34 971 173146.
    • ,
  • Antoni Pons

      Affiliations

    • Corresponding Author InformationCorresponding author at: Research Group on Community Nutrition and Oxidative Stress, University of the Balearic Islands, Guillem Colom Building, Campus E-07122 Palma de Mallorca, Spain. Tel.: +34 971 173171; fax: +34 971 173184.

Research Group on Community Nutrition and Oxidative Stress, Research Institute of Health Sciences, University of the Balearic Islands, Palma de Mallorca E-07122, Spain

Received 10 January 2008; received in revised form 20 May 2008; accepted 30 May 2008.

Abstract 

Objective

Carbamide peroxide and hydrogen peroxide have been used as tooth whitening agents. The aim of this paper was to determine the efficiency of several enzyme-containing whitening systems. A method to determine the rate of ‘in vitro’ tetracycline whitening was also developed.

Methods

We determined the tetracycline whitening ability of carbamide peroxide and hydrogen peroxide, and the influence of peroxidase and lactoperoxidase on this tetracycline whitening rate.

Results

High peroxidase and lactoperoxidase concentrations increased the rate of tetracycline decoloration obtained with carbamide peroxide or hydrogen peroxide. The decoloration rate observed was lower when the glucose/glucose oxidase system was used to generate hydrogen peroxide ‘in situ’. The presence of peroxidase increased the decoloration rate of extracted teeth obtained with carbamide.

Conclusions

Enzymes such as peroxidase could be used as whitening catalysts to increase the rate of tetracycline decoloration.

Keywords: Whitening, Bleaching, Enzyme, Tetracycline, Vital stains

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PII: S0300-5712(08)00169-3

doi:10.1016/j.jdent.2008.05.015

Journal of Dentistry
Volume 36, Issue 10 , Pages 795-800, October 2008

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