Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study

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 wer...

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Autores principales:	Alegre,O, Yévenes,I, Parada,J, Maggiolo,S, Fernández,E
Lenguaje:	English
Publicado:	Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile. 2017
Materias:	Parachloroaniline Endodontic Irrigation Chlorhexidine Sodium Hypochlorite EDTA
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-01072017000300145
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spelling	oai:scielo:S0719-010720170003001452017-12-14Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo studyAlegre,OYévenes,IParada,JMaggiolo,SFernández,E Parachloroaniline Endodontic Irrigation Chlorhexidine Sodium Hypochlorite EDTA 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.info:eu-repo/semantics/openAccessSociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile.Revista clínica de periodoncia, implantología y rehabilitación oral v.10 n.3 20172017-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-01072017000300145en10.4067/S0719-01072017000300145
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Parachloroaniline Endodontic Irrigation Chlorhexidine Sodium Hypochlorite EDTA
spellingShingle	Parachloroaniline Endodontic Irrigation Chlorhexidine Sodium Hypochlorite EDTA Alegre,O Yévenes,I Parada,J Maggiolo,S Fernández,E Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
description	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.
author	Alegre,O Yévenes,I Parada,J Maggiolo,S Fernández,E
author_facet	Alegre,O Yévenes,I Parada,J Maggiolo,S Fernández,E
author_sort	Alegre,O
title	Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
title_short	Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
title_full	Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
title_fullStr	Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
title_full_unstemmed	Determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
title_sort	determination of residual parachloroaniline produced by endodontic treatment after the use of 5% sodium hypochlorite and 2% chlorhexidine combined: an ex-vivo study
publisher	Sociedad de Periodoncia de Chile. Sociedad de Implantología Oral de Chile. Sociedad de Prótesis y Rehabilitación Oral de Chile.
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0719-01072017000300145
work_keys_str_mv	AT alegreo determinationofresidualparachloroanilineproducedbyendodontictreatmentaftertheuseof5sodiumhypochloriteand2chlorhexidinecombinedanexvivostudy AT yevenesi determinationofresidualparachloroanilineproducedbyendodontictreatmentaftertheuseof5sodiumhypochloriteand2chlorhexidinecombinedanexvivostudy AT paradaj determinationofresidualparachloroanilineproducedbyendodontictreatmentaftertheuseof5sodiumhypochloriteand2chlorhexidinecombinedanexvivostudy AT maggiolos determinationofresidualparachloroanilineproducedbyendodontictreatmentaftertheuseof5sodiumhypochloriteand2chlorhexidinecombinedanexvivostudy AT fernandeze determinationofresidualparachloroanilineproducedbyendodontictreatmentaftertheuseof5sodiumhypochloriteand2chlorhexidinecombinedanexvivostudy
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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

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