In vitro evaluation of the effect of vinegar solutions on the microhardness of root dentin

Authors

  • Luciana de Souza Falcão
  • Juliana Vianna Pereira
  • Maria Augusta Bessa Rebelo
  • Ângela Delfina Bittencourt Garrido

DOI:

https://doi.org/10.15448/1980-6523.2014.1.11504

Keywords:

Acid acetic, dentin, EDTA, hardness test, root canal irrigants,

Abstract

Objective: This in vitro study evaluated the action of vinegar solutions on microhardness of root dentin. Methods: Ten extracted human maxillary central incisors were sectioned transversely at the cementenamel junction. The roots were fixed on cutting machine device and were cut on cervical region transversely in 2-mm sections. The second cervical section was divided into four parts. Each one quarter of section was fixed with wax in the center of a pre-fabricated acrylic disc. Four treatment groups were tested: group 1 – alcohol vinegar; group 2 – white wine vinegar; group 3 – EDTA (standard group); group 4 – distilled water (control group). The specimens were submitted to solutions application for 5 min. The measurements of microhardness (initial and post-treatment) were carried out using a Knoop microhardness tester. Data were analyzed by using Wilcoxon and Kruskal Wallis tests. Results: The analysis of initial and final microhardness showed statically significant differences before and after application of the tested solutions alcohol vinegar, white wine vinegar and EDTA. Groups 1,2 and 3 presented a decrease in the microhardness values. Conclusion: The solutions of alcohol vinegar and white wine vinegar, as well as the EDTA, reduced the microhardness of root dentin.

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Published

2014-07-28

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Original Article