Effect of peroxidase on composite resin adhesion to dental enamel after whitening

Authors

  • Paula Alejandra Baldión-Elorza UNIVERSIDAD NACIONAL DE COLOMBIA
  • Laura Nathalia Viteri-Lucero UNIVERSIDAD NACIONAL DE COLOMBIA
  • Edilberto Lozano-Torres UNIVERSIDAD NACIONAL DE COLOMBIA

DOI:

https://doi.org/10.17533/udea.rfo.10850

Keywords:

Horseradish peroxidase, Dental adhesion, Denta whitening, Composite resins, Hydrigen peroxide

Abstract

Introduction: some reports suggest that residual oxygen released by whitening agents interfere with composite resin adhesion to dental structure. The objective of this study is therefore to compare composite resins’ shear bond strength to dental enamel after whitening using 38% hydrogen peroxide pre- and post- treatment with peroxidase enzyme before adhesion. Methods: a total of 45 healthy human premolars were selected and divided into three groups of 15 teeth each. Group 1: control group (only adhesion); group 2: whitening and adhesion; group 3: whitening, application of peroxidase, and adhesion. After treatment, shear bond strength was measured with a Shimadzu testing machine in order to determine significant statistical differences among the three groups, with a confidence level of 95% and p < 0.05. Results: the control group obtained a shear bond strength of 12.8Mpa (± 3.2), the whitening group showed an average 3.5 Mpa (± 1.43), and the group treated with whitening and peroxidase presented an average 12.2 Mpa (± 3.12). Conclusions: shear bond strength values significantly decreased with application of 38% hydrogen peroxide; however, a significant increase was also obtained by applying peroxidase before adhesion.

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Author Biographies

Paula Alejandra Baldión-Elorza, UNIVERSIDAD NACIONAL DE COLOMBIA

Dentist, specialist in Oral Rehabilitation, School of Dentistry, Universidad Nacional de Colombia. Professor at the School of Dentistry, Universidad Nacional de Colombia.

Laura Nathalia Viteri-Lucero, UNIVERSIDAD NACIONAL DE COLOMBIA

Dentists, School of Dentistry, Universidad Nacional de Colombia

Edilberto Lozano-Torres, UNIVERSIDAD NACIONAL DE COLOMBIA

Dentists, School of Dentistry, Universidad Nacional de Colombia

Published

2012-11-28

How to Cite

Baldión-Elorza, P. A., Viteri-Lucero, L. N., & Lozano-Torres, E. (2012). Effect of peroxidase on composite resin adhesion to dental enamel after whitening. Revista Facultad De Odontología Universidad De Antioquia, 24(1), 8–21. https://doi.org/10.17533/udea.rfo.10850

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