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Effect of ammonium acryloyldimethyltaurate copolymer on the physical and chemical properties of bleached dental enamel

  • Thayla Hellen Nunes Gouveia
  • Danielle Ferreira Sobral de Souza
  • Flávio Henrique Baggio Aguiar
  • Gláucia Maria Bovi Ambrosano
  • Débora Alves Nunes Leite LimaEmail author
Original Article
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Abstract

Objective

To analyze the effect of bioadhesive polymer, Aristoflex® AVC, on enamel physical and chemical properties.

Materials and methods

Bovine enamel blocks were divided into CP 10% with carbopol—Whiteness Perfect® (WP-FGM), CP 10% with Aristoflex (A + CP 10%), CP 10% with carbopol (C + CP 10%), Aristoflex (A), carbopol (C), carbamide peroxide 10% (CP 10%) and control (no treatment). The treatment was performed for 4 h during 14 days. The colour (ΔE, ΔL*, Δa* and Δb*), profilometry (Ra) and surface microhardness (KHN) were performed before and after the bleaching treatment. The concentrations of Ca and P were performed on the 1st, 3rd, 7th and 14th days by inductively coupled plasma optical emission spectrometry for the groups WP, A + CP 10%, C + CP 10%, A, C and CP 10% (control without thickener) and the morphology by scanning electron microscopy.

Results

All groups with CP 10%, regardless of polymer, differing statistically to ΔE, ΔL*, Δa* and Δb* compared to control group. The group A + CP 10% maintained low values of roughness and microhardness after bleaching. Higher concentration of Ca and P was found in the 1st day of treatment for the WP group compared to the groups A + CP 10% and C + CP 10%.

Conclusion

The 10% CP associated with the bioadhesive polymer Aristoflex® AVC was effective on the bleaching treatment without changing the physical properties of the dental enamel. Also, this experimental gel caused less mineral loss than the group CP 10% with carbopol (WP-FGM).

Clinical relevance

Because the change of Carbopol by Aristoflex, a bioadhesive polymer, does not interfere with the effectiveness of bleaching treatment, it is a promising agent associated to carbamide to maintain the physical properties of enamel after bleaching.

Keywords

Dental bleaching Chemical analysis Spectroscopy Profilometry 

Notes

Acknowledgments

The authors would like to thank Drogal manipulations and FGM-Dental products for the donation of their bleaching products, as well as the Laboratory of Analytical Chemistry of the Center of Nuclear Energy in Agriculture at the University of São Paulo (CENA/USP) and the Laboratory Multiusers of the Institute of Physics “Gleb Wataghin” at the State University of Campinas (Lamult–IFGW/UNICAMP) for aid in the chemical analysis (Ca and P) and profilomety, respectively.

Compliance with ethical standards

Ethical approval

This article does not contain any studies with human participants or animals performed by any of the authors.

Conflict of interest

The authors declare that they have no conflict of interest.

Informed consent

For this type of study, formal consent is not required.

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  • Thayla Hellen Nunes Gouveia
    • 1
  • Danielle Ferreira Sobral de Souza
    • 1
  • Flávio Henrique Baggio Aguiar
    • 1
  • Gláucia Maria Bovi Ambrosano
    • 2
  • Débora Alves Nunes Leite Lima
    • 1
    Email author
  1. 1.Department of Restorative Dentistry, Piracicaba Dental SchoolState University of Campinas – FOP/UNICAMPPiracicabaBrazil
  2. 2.Department of Social Dentistry/Statistics, Piracicaba Dental SchoolState University of Campinas – FOP/UNICAMPPiracicabaBrazil

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