Superficial dye penetration of two conventional ionomers used as dental fissures sealants

Authors

  • Marcella C. B. Malta Universidade do Estado do Rio de Janeiro
  • Márcia R. T. C. Andrade Universidade Federal Fluminense
  • Mirian de W. S. de Marsillac Universidade do Estado do Rio de Janeiro
  • Luiz H. M. Prates Universidade Federal de Santa Catarina
  • Ricardo de S. Vieira Universidade Federal de Santa Catarina

DOI:

https://doi.org/10.11606/issn.2357-8041.clrd.2021.181208

Keywords:

Glass ionomer cements, Pit and fissure sealants, Materials testing

Abstract

Objective: This study aimed to evaluate surface dye penetration of two conventional glass ionomer cements (GIC), one of them a high viscous ionomer. Methods: 20 standard disk samples measuring 2 mm thick and 4 mm in diameter were made for each conventional GIC. The high viscous ionomer was used as the control (Group 1). Samples were embedded in wax and submitted to pH cycling for 7 days simulating a high cariogenic challenge in a kiln (37ºC). All samples were brushed with an extra-soft bristles infant toothbrush to mimic oral hygiene after exposure to a demineralizing solution for 6 hours. The samples were immersed in a 1% methylene blue solution for 2 hours at the end of cycling. The Mann-Whitney Rank Sum Test was used to analyze the difference between the two GIC. Results: All samples disclosed a superficial dye penetration of 0.6 to 1.5 mm depth. There was no statistical d ifference b etween t he G IC t ested ( p = 0.883). Conclusion: Both GIC tested in this study exhibited superficial dye penetration to depths of at least until their superficial third.

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Author Biographies

  • Marcella C. B. Malta, Universidade do Estado do Rio de Janeiro

    Department of Community and Preventive Dentistry, School of Dentistry of the State University of Rio de Janeiro (FOUERJ), Rio de Janeiro, RJ, Brazil

  • Márcia R. T. C. Andrade, Universidade Federal Fluminense

    Department of Pediatric Dentistry, School of Dentistry, Health Institute of the Federal University Fluminense (UFF), Nova Friburgo, RJ, Brazil

  • Mirian de W. S. de Marsillac, Universidade do Estado do Rio de Janeiro

    Department of Community and Preventive Dentistry, School of Dentistry of the State University of Rio de Janeiro (FOUERJ), Rio de Janeiro, RJ, Brazil

  • Luiz H. M. Prates, Universidade Federal de Santa Catarina

    Department of Stomatology, Dental School of the Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil

  • Ricardo de S. Vieira, Universidade Federal de Santa Catarina

    Department of Stomatology, Dental School of the Federal University of Santa Catarina (UFSC), Florianópolis, SC, Brazil

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Published

2021-07-02

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Section

Original Research

How to Cite

Malta, M. C. B., Andrade, M. R. T. C., Marsillac, M. de W. S. de, Prates, L. H. M., & Vieira, R. de S. (2021). Superficial dye penetration of two conventional ionomers used as dental fissures sealants. Clinical and Laboratorial Research in Dentistry. https://doi.org/10.11606/issn.2357-8041.clrd.2021.181208