<?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>1870-199X</journal-id>
<journal-title><![CDATA[Revista odontológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Odont. Mex]]></abbrev-journal-title>
<issn>1870-199X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Odontología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-199X2020000400253</article-id>
<article-id pub-id-type="doi">10.22201/fo.1870199xp.2020.24.4.81545</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Evaluation of density obturation in principal root canal with conventional X-ray scanner X-ray, radiovisiography, and cone-beam computed tomography]]></article-title>
<article-title xml:lang="es"><![CDATA[Evaluación de la densidad de obturación en conducto radicular principal con técnicas de rayos X, escáner, radiovisiógrafo y tomografia Cone Beam]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gaitán-Fonseca]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ciénega-Flores]]></surname>
<given-names><![CDATA[Andrés Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Araujo-Espino]]></surname>
<given-names><![CDATA[Roxana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Aguilera-Galaviz]]></surname>
<given-names><![CDATA[Luis Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pozos-Guillén]]></surname>
<given-names><![CDATA[Amaury]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Zacatecas «Francisco García Salinas»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Zacatecas «Francisco García Salinas»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Zacatecas «Francisco García Salinas»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma de Zacatecas «Francisco García Salinas»  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Estomatología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2020</year>
</pub-date>
<volume>24</volume>
<numero>4</numero>
<fpage>253</fpage>
<lpage>258</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2020000400253&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2020000400253&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2020000400253&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Root canal obturation needs to preserve optimal clinical conditions for achieving success in patients. The aim of the present study was to evaluate endodontic obturation performed by the lateral condensation technique with manual and rotary instruments. Thirty extracted incisors were divided into two groups according to instrumentation technique: group 1-RCSMA57 + Sealapex® and group 2-spreader iRace #30 + Sealapex®. All samples were decoronated and standardized at 10 mm, intraradicular instrumentation were performed with Gates-Glidden #3, and the protocols of irrigation that were employed were 5.25% NaOCl + 17% EDTA during instrumentation. Finally, the groups were obturated with the lateral condensation technique. The samples were observed with conventional X-ray, scanner X-ray, radiovisiography, and Cone Beam computed tomography techniques. For evaluation, a scale of canal obturation density (0 = suitable, 1 = acceptable, 2 = fair, and 3 = inadequate) was employed by blinded evaluator. A value of canal obturation density was assigned in each sample. A statistical analysis by the &#967;2 of Pearson with a significance level of 0.05% was employed. All groups showed different values according to the instrumentation technique employed. The rotary instrument gave better results than manual instruments according to the values expressed (p = 0.004). The both instruments can be used in the obturation lateral technique; however, the rotary instrument provides better conditions for this technique.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La obturación del conducto radicular necesita preservar una condición clínica óptima para lograr éxito en pacientes. El objetivo del presente estudio fue evaluar la obturación endodóntica desarrollada por técnica de condensación lateral con instrumentos rotatorio y manual. Treinta incisivos extraídos fueron divididos en dos grupos de acuerdo con la técnica de instrumentación: grupo 1-RCSMA57 + Sealapex® y grupo 2-spreader iRace #30 + Sealapex®. Todas las muestras fueron de coronadas y estandarizadas a 10 mm, la instrumentación intrarradicular se realizó con Gates Glidden #3 y el protocolo de irrigación fue NaOCl 5.25% + ácido etilendiaminotetraacético (EDTA) 17% durante la instrumentación. Finalmente, los grupos fueron obturados con técnica de condensación lateral. Las muestras fueron observadas con las técnicas de rayos X, escáner, radiovisiógrafo y tomografía Cone Beam. Para la evaluación, se utilizó una escala de la densidad de obturación del conducto (0 = adecuada, 1 = aceptable, 2 = justa, 3 = inadecuada) empleada por un evaluador cegado. Un valor de la densidad de obturación del conducto fue asignado a cada muestra. El análisis estadístico empleado fue &#967;2 de Pearson con un nivel de significancia de 0.05%. Todos los grupos mostraron distintos valores de acuerdo con la técnica de instrumentación empleada. El instrumento rotatorio dio mejores resultados que el instrumento manual de acuerdo con los valores expresados (p = 0.004). Ambos instrumentos pueden ser utilizados en la técnica de obturación lateral; sin embargo, el instrumento rotatorio proporciona mejores condiciones para esta técnica.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Root canal obturation]]></kwd>
<kwd lng="en"><![CDATA[X-ray]]></kwd>
<kwd lng="en"><![CDATA[scanner X-ray]]></kwd>
<kwd lng="en"><![CDATA[radiovisiography]]></kwd>
<kwd lng="en"><![CDATA[Cone Beam computed tomography]]></kwd>
<kwd lng="es"><![CDATA[Obturación del conducto radicular]]></kwd>
<kwd lng="es"><![CDATA[rayos X]]></kwd>
<kwd lng="es"><![CDATA[escáner]]></kwd>
<kwd lng="es"><![CDATA[radiovisiógrafo]]></kwd>
<kwd lng="es"><![CDATA[tomografía Cone Beam]]></kwd>
</kwd-group>
</article-meta>
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