Mineral exchange between dentin pre-tretament with Dolomite powder on demineralized dentin in deciduous molars

Authors

  • Gisele Fernandes Dias Department of Restorative Dentistry – School of Dentistry – Ponta Grossa State University Ponta Grossa – PR – Brazil.
  • Fabiana B. T. Alves Department of Restorative Dentistry – School of Dentistry – Ponta Grossa State University Ponta Grossa – PR – Brazil.
  • Daphynne M Samways Departament of Pediatric Dentistry – School of Dentistry – Ponta Grossa State University – Ponta Grossa – PR – Brazil.
  • Fabio André dos Santos Department of Restorative Dentistry – School of Dentistry – Ponta Grossa State University Ponta Grossa – PR – Brazil.

DOI:

https://doi.org/10.14295/bds.2018.v21i3.1592

Abstract

The objective of this study was to evaluate differences in microhardness and mineral profiles in sound and demineralized dentin of primary molars after treatment with powdered dolomite (DMT) followed by glass ionomer cement (GIC) restoration. 32 decidous molars were selected and randomly assigned to four groups according to dentin pre-treatment and dentin condition. Class I cavities were prepared in 32 decidous molars, equally divided into groups G1 (sound dentin) and   G2 (demineralized dentin). This in vitro study examined the mechanical and chemical exchange under two conditions: sound and demineralized dentin (pH cycling) to simulate the mineral loss occurs for the caries lesion.The 16-tooth (G1DMT, G2DMT) received first topical application of DMT and restoration of high viscosity GIC. The 16 teeth assigned to the groups (G1 and G2) were restored only with GIC. The specimens were sliced and prepared for Knoop hardness test (KHN), Micro Raman and FEG microhardness analysis. The statiscal analysis used ANOVA and Bonferroni post-test at a significance level of 5%. Micro Raman and FEG data were qualitatively described. DMT associated with GIC resulted incresead microhardness values of the demineralized dentin substrate, with positive repercussions of the chemical-mechanical properties of the dentin demineralized.

Keywords

 Dental caries; Dentin; Glass ionomer cement.

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Author Biography

Gisele Fernandes Dias, Department of Restorative Dentistry – School of Dentistry – Ponta Grossa State University Ponta Grossa – PR – Brazil.

Department of Dentistry

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Published

2018-08-06

How to Cite

1.
Dias GF, Alves FBT, Samways DM, Santos FA dos. Mineral exchange between dentin pre-tretament with Dolomite powder on demineralized dentin in deciduous molars. BDS [Internet]. 2018 Aug. 6 [cited 2025 Aug. 21];21(3):341-50. Available from: https://ojs.ict.unesp.br/index.php/cob/article/view/1592

Issue

Vol. 21 No. 3 (2018): Jul. - Sep. / 2018 - Published Aug 2018

Section

Clinical or Laboratorial Research

License

Brazilian Dental Science uses the Creative Commons (CC-BY 4.0) license, thus preserving the integrity of articles in an open access environment. The journal allows the author to retain publishing rights without restrictions.

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