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Analysis of physicochemical properties of endodontic sealers containing rhodamine B.
Tedesco, Maybell; Vitali, Filipe Colombo; Bortoluzzi, Eduardo Antunes; Garcia, Lucas da Fonseca Roberti; Teixeira, Cleonice da Silveira.
Afiliação
  • Tedesco M; Department of Dentistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil.
  • Vitali FC; Department of Dentistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil.
  • Bortoluzzi EA; Department of Diagnosis & Oral Health, School of Dentistry, University of Louisville, Louisville, KY, USA.
  • Garcia LDFR; Department of Dentistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil.
  • Teixeira CDS; Department of Dentistry, Federal University of Santa Catarina, Florianopolis, SC, Brazil. Electronic address: cleonice.teixeira@ufsc.br.
J Mech Behav Biomed Mater ; 140: 105699, 2023 04.
Article em En | MEDLINE | ID: mdl-36753848
The use of fluorescent dyes in microscopy studies is frequent. Therefore, it is important to investigate whether these compounds may alter the physicochemical properties of materials in which they are incorporated to avoid methodological biases. This study evaluated the physicochemical properties of two endodontic sealers containing dry or diluted rhodamine B. Six groups were evaluated: AH Plus and MTA Fillapex in their original composition and mixed with 0.1% dry or diluted rhodamine. Push-out test was applied to assess the bond strength to root dentin. ANSI-ADA No. 57 and ISO No. 6876:2012 specifications were followed to evaluate flowability, setting time, and solubility of the sealers. pH changes were assessed after 24 h, 7, and 30 days. Intergroup comparisons were analyzed by ANOVA complemented by Tukey's post-hoc test; comparisons among periods were analyzed by Wilcoxon and Friedman tests. The incorporation of dry rhodamine decreased the bond strength and prolonged the setting time of AH Plus. The incorporation of diluted rhodamine decreased the setting time and increased the flowability of MTA Fillapex. Diluted rhodamine promoted pH reduction of AH Plus after 24 h and dry rhodamine after 7 days. Rhodamine incorporation promoted pH reduction after 30 days for MTA Fillapex. Solubility was not affected. In conclusion, the incorporation of diluted rhodamine changed the properties of MTA Fillapex, and the incorporation of dry rhodamine changed the properties of AH Plus. Previous dilution of rhodamine did not severely compromise the physicochemical properties of AH Plus and may be suggested to assess its penetrability.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Materiais Restauradores do Canal Radicular Idioma: En Revista: J Mech Behav Biomed Mater Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Materiais Restauradores do Canal Radicular Idioma: En Revista: J Mech Behav Biomed Mater Assunto da revista: ENGENHARIA BIOMEDICA Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Holanda