A New Weak Chelator in Endodontics: Effects of Different Irrigation Regimens with Etidronate on Root Dentin Microhardness

Autor: Talita Tartari, Patrícia de Almeida Rodrigues Silva e Souza, Bruno Vila Nova de Almeida, José Otávio Carrera Silva Júnior, Oscar Facíola Pessoa, Mario Honorato Silva e Souza Junior
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: International Journal of Dentistry, Vol 2013 (2013)
Druh dokumentu: article
ISSN: 1687-8728
1687-8736
DOI: 10.1155/2013/743018
Popis: This study investigated the effect of sodium hypochlorite (NaOCl), ethylenediaminetetraacetic (EDTA), etidronic (HEBP), and citric acid (CA) associated in different irrigation regimens on root dentin microhardness. Forty-five root halves of single-rooted teeth were sectioned into thirds that were embedded in acrylic resin, polished, randomly assigned into 3 groups, and treated as follows: G1: saline solution; G2: 5% NaOCl + 18% HEBP, mixed in equal parts; and G3: 2.5% NaOCl. After measurements, the G3 samples were distributed into subgroups G4, G5, and G6, which were submitted to 17% EDTA, 10% CA and 9% HEBP, respectively. Following the new measurements, these groups received a final flush with 2.5% NaOCl, producing G7, G8, and G9. Microhardness was measured with Knoop indenter under a 25 g load for 15 seconds, before and after treatments. The data were statistically analyzed using paired Student’s t-test (α
Databáze: Directory of Open Access Journals
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