Effect of whitening and desensitizing dentifrices on composite surfaces treated with surface sealants

Authors

  • Paulo Henrique dos Santos,

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • Fabiana Ferres Brogin,

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • Anderson Catelan,

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • Thaís Yumi Umeda Suzuki,

    Corresponding author
    • Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • Ana Paula Albuquerque Guedes,

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • Sabrina Pavan,

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • Wirley Gonçalves Assunção,

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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  • André Luiz Fraga Briso

    1. Department of Dental Materials and Prosthodontics, Araçatuba School of Dentistry, São Paulo State University – UNESP, Araçatuba, SP, Brazil
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Correspondence

Thaí Yumi Umeda Suzuki

Rua José Bonifácio

1193, 16015-050 Araçatuba – SP,

Brazil.

Tel: +55-18-3636-2802

Fax: +55-18-36363245

Email: tha.suzuki@gmail.com

Abstract

Objective

This study evaluated the effect of different dentifrices on the microhardness and surface roughness of composite surfaces covered by surface sealants.

Methods

Samples of Filtek P60 were made and divided into groups, in accordance with surface treatments: G1 – Fortify; G2 – Fortify Plus; G3 – control (none). For Knoop microhardness evaluation, the specimens were placed in a microdurometer, under a load of 50 g for 15 sec. The analyses of surface roughness were carried out individually in a profilometer. The specimens were submitted to toothbrushing using dentifrices: Colgate Maximum Protection Anti-caries, Colgate Whitening or Sensodyne, diluted in distilled water (1:3) for 30 000 cycles.

Results

The results showed that the control group (G3) presented the highest microhardness values. The control group presented, before toothbrushing, the lowest surface roughness values, and after toothbrushing there were no differences among the experimental groups.

Conclusion

The maintenance of the lowest values of microhardness demonstrated the effectiveness of these sealant materials to support the abrasive wear.

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