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

• Autor(a) principal: Falcão, Luciana de Souza
• Data de Publicação: 2014
• Outros Autores: Pereira, Juliana Vianna, Rebelo, Maria Augusta Bessa, Garrido, Ângela Delfina Bittencourt
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista odonto ciência (Online)
• Texto Completo: https://revistaseletronicas.pucrs.br/ojs/index.php/fo/article/view/11504
• topic: Acid acetic; dentin; EDTA; hardness test; root canal irrigants; Ácido acético; dentina; EDTA; testes de dureza; irrigantes do canal radicular

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.