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Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
Alegre, O; Yévenes, I; Parada, J; Maggiolo, S; Fernández, E.
Afiliação
  • Alegre, O; University of Chile. Faculty of Dentistry. Institute of Basic Sciences. Santiago. CL
  • Yévenes, I; University of Chile. Faculty of Dentistry. Institute of Basic Sciences. Santiago. CL
  • Parada, J; University of Chile. Faculty of Dentistry. Institute of Basic Sciences. Santiago. CL
  • Maggiolo, S; University of Chile. Faculty of Dentistry. Department of Conservative Dentistry. Santiago. CL
  • Fernández, E; University of Chile. Faculty of Dentistry. Department of Restorative Dentistry. Santiago. CL
Rev. clín. periodoncia implantol. rehabil. oral (Impr.) ; 10(3): 145-148, dic. 2017. tab, graf
Artigo em Inglês | LILACS | ID: biblio-900296
Biblioteca responsável: CL58.1
ABSTRACT
ABSTRACT

Aim:

The objective of this work was to determine the concentrations of irrigating solutions and the residual content of parachloroaniline (PCA) formed after endodontic irrigation, using 5% NaOCl, 0.9% NaCl, 10% EDTA and 2% CHX 2%. Methodology Twenty premolars were used and 13 samples were collected per tooth from each of the treatment phases. Samples of NaOCl, EDTA, CHX and PCA were quantified by UV and visible spectrophotometry.

Results:

Sodium hypochlorite decreased its concentration from 3.8% to 3.4% in phases 1 to 4. In phases 5, 6 and 7, residual NaOCl was measured with concentrations of 0.007%, 0.003% and 0.001% %. The concentration of EDTA decreased to 8.85% in phase 8. In phases 9, 10 and 11, irrigated with serum, EDTA was quantified with concentrations of 0.013% to 0.002% and NaOCl values of 0.0011% to 0, 0006%. In phases 12 and 13, CHX concentrations were 1.850% and 1.812% and PCA values were 0.0005% and 0.0007%. PCA formation occurred in presence of 2% CHX and residual NaClO and was detected colorimetrically in phases 12 and 13. Conclusions. During endodontic irrigation the concentration of 5% NaOCl decreases significantly in the first four phases and the concentrations of EDTA and CHX also decrease. There is PCA training in the last stages of the procedure.
Assuntos

Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Irrigantes do Canal Radicular / Hipoclorito de Sódio / Clorexidina / Compostos de Anilina Limite: Humanos Idioma: Inglês Revista: Rev. clín. periodoncia implantol. rehabil. oral (Impr.) Assunto da revista: Odontologia Ano de publicação: 2017 Tipo de documento: Artigo País de afiliação: Chile Instituição/País de afiliação: University of Chile/CL

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Texto completo: Disponível Coleções: Bases de dados internacionais Base de dados: LILACS Assunto principal: Irrigantes do Canal Radicular / Hipoclorito de Sódio / Clorexidina / Compostos de Anilina Limite: Humanos Idioma: Inglês Revista: Rev. clín. periodoncia implantol. rehabil. oral (Impr.) Assunto da revista: Odontologia Ano de publicação: 2017 Tipo de documento: Artigo País de afiliação: Chile Instituição/País de afiliação: University of Chile/CL
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