<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0213-1285</journal-id>
<journal-title><![CDATA[Avances en Odontoestomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Av Odontoestomatol]]></abbrev-journal-title>
<issn>0213-1285</issn>
<publisher>
<publisher-name><![CDATA[Ediciones Avances, S.L.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0213-12852023000500005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación de la concentración de hipoclorito de sodio en la atención dental entre dentistas generales y especialistas en endodoncia]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparison of the concentration of sodium hypochlorite used in dental care of general dentists and specialists in endodontics]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rochenszwalb-Muñoz]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueroa-Naranjo]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A">
<institution><![CDATA[,  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>39</volume>
<numero>5</numero>
<fpage>230</fpage>
<lpage>240</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0213-12852023000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0213-12852023000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0213-12852023000500005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Resumen: La vida útil de hipoclorito de sodio (NaOCl) es limitada, varios estudios señalan la posibilidad de discrepancias entre la concentración esperada y la concentración real en soluciones de NaOCl usadas como irrigantes endodónticos. El presente estudio investigó si existe alguna diferencia en la concentración usada por endodoncistas y dentistas generales. La solución de NaOCl es hasta la fecha, la solución de irrigación del canal radicular más utilizado, pero no existe un acuerdo general en cuanto a su concentración óptima, que varía desde 0,5 % a 5,25 %. Este estudio fue analítico experimental. El tamaño muestral fue por conveniencia. Los sujetos estudiados fueron especialistas en endodoncia y dentistas generales que se desempeñan tanto en la atención pública como privada, en la ciudad de Santiago de Chile. Participaron del estudio de manera voluntaria, para lo cual llenaron un consentimiento informado y completaron una encuesta previamente validada. Cada sujeto aportó una muestra de la solución de hipoclorito de sodio que utilizaba en su práctica clínica. Las muestras fueron recolectadas en recipientes plásticos oscuros y fueron almacenadas sin estar expuestas a la luz y refrigeradas hasta su análisis. Para el análisis de laboratorio se usó espectrofotometría, el análisis estadístico se emplearon los Test de Student y Fischer para medir si existían diferencias entre las concentraciones de hipoclorito de sodio utilizadas por endodoncistas y dentistas generales.  Conclusiones: Existe diferencia en la concentración de hipoclorito de sodio en soluciones de hipoclorito de sodio usadas por endodoncistas y dentistas generales. Todas las muestras recolectadas poseen una concentración igual o mayor al 4,7% de hipoclorito. Existe diferencias entre la concentración real de hipoclorito de sodio en soluciones para la irrigación y la encuestada en el caso de dentistas generales. En este caso las concentraciones reales son más de dos veces mayores a las encuestadas. Existe diferencias entre la concentración real de hipoclorito de sodio en soluciones para la irrigación y la esperada en el caso de dentistas generales. Siendo incluso un poco mayores las reales a las encuestadas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Abstract: The shelf life of sodium hypochlorite (NaOCl) is limited, several studies point out the possibility of discrepancies between the expected concentration and the actual concentration in NaOCl solutions used as endodontic irrigants. The present study investigated whether there is any difference in the concentration used by endodontists and general dentists. NaOCl solution is to date the most widely used root canal irrigation solution, but there is no general agreement as to its optimal concentration, which varies from 0.5% to 5.25%. This study was analytical experimental. The sample size was for convenience. The subjects studied were specialists in endodontics and general dentists who work in both public and private care, in the city of Santiago de Chile. They participated in the study voluntarily, for which they filled out an informed consent and completed a previously validated survey. Each subject provided a sample of the sodium hypochlorite solution used in their clinical practice. The samples were collected in dark plastic containers and were stored without being exposed to light and refrigerated until analysis. For the laboratory analysis, spectrophotometry was used, for statistical analysis the Student and Fischer tests were used to measure whether there were differences between the concentrations of sodium hypochlorite used by endodontists and general dentists.  Conclusions: There is a difference in the concentration of sodium hypochlorite in solutions of sodium hypochlorite used by endodontists and general dentists. All samples collected have a concentration equal to or greater than to 4.7% hypochlorite. There are differences between the actual concentration of sodium hypochlorite in solutions for irrigation and that surveyed in the case of general dentists. In this case, the actual concentrations are more than twice as high as those surveyed. There are differences between the actual concentration of sodium hypochlorite in solutions for irrigation and that expected in the case of general dentists. The real ones are even slightly higher than those surveyed.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Endodontist]]></kwd>
<kwd lng="es"><![CDATA[general dentist]]></kwd>
<kwd lng="es"><![CDATA[irrigation]]></kwd>
<kwd lng="es"><![CDATA[NaOCl]]></kwd>
<kwd lng="es"><![CDATA[SCR]]></kwd>
<kwd lng="en"><![CDATA[Endodontist]]></kwd>
<kwd lng="en"><![CDATA[general dentist]]></kwd>
<kwd lng="en"><![CDATA[irrigation]]></kwd>
<kwd lng="en"><![CDATA[NaOCl]]></kwd>
<kwd lng="en"><![CDATA[SCR]]></kwd>
</kwd-group>
</article-meta>
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