Evaluation of changes on dentin mineral components after surface preparation for adhesive restoration by X-ray fluorescence

Authors

  • Rodrigo de Oliveira UNIVAP
  • Ana Maria do Espirito Santo UNIVAP
  • Luís Eduardo Silva Soares UNIVAP
  • Airton Abrahão Martin UNIVAP

DOI:

https://doi.org/10.5585/exacta.v6i1.941

Keywords:

Dentina. Desmineralização. Fluorescência de raios-X. Hidroxiapatita. Laser.

Abstract

The main purpose of this study was to evaluate, in-vitro, the effects of acid etching and Er:YAG laser irradiation (120 mJ, 3 Hz) on dentin mineral component for restoration. Fifteen healthy bovine incisors teeth were sectioned and the surfaces were divided, schematically, in four different areas for treatment: etching with 37% phosphoric acid (Control group-CG); Er:YAG laser 80mJ, 153 pulses (Group I); Er:YAG laser 120mJ, 103 pulses (Group II), and Er:YAG 180mJ, 70 pulses (Group III). The samples were analyzed before and after the treatments by X-Ray fluorescence spectrometry. The acid etching treatment of the surfaces reduced significantly the mineral component of the dentin. The Er:YAG laser treatment of the surfaces with 180 mJ affected the hydroxyapatite stoichiometry.

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Exacta v. 6, n. 1

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Published

2009-02-10

How to Cite

Oliveira, R. de, Santo, A. M. do E., Soares, L. E. S., & Martin, A. A. (2009). Evaluation of changes on dentin mineral components after surface preparation for adhesive restoration by X-ray fluorescence. Exacta, 6(1), 139–146. https://doi.org/10.5585/exacta.v6i1.941

Issue

Vol. 6 No. 1 (2008): (Jan-Jun)

Section

Papers

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