<?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>S1870-199X2019000300192</article-id>
<article-id pub-id-type="doi">10.22201/fo.1870199xp.2019.23.3.75629</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Molar superior con dos conductos palatinos. Reporte de Caso]]></article-title>
<article-title xml:lang="en"><![CDATA[First maxillary molar with two palatal root canals. A case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tenorio Rocha]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos Ibarra]]></surname>
<given-names><![CDATA[Paola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero Martínez]]></surname>
<given-names><![CDATA[Nallely Berenice]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carmona Herrera]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oviedo González]]></surname>
<given-names><![CDATA[Eilen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Escuela Nacional de Estudios Superiores Departamento de Patología Bucal]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Escuela Nacional de Estudios Superiores Clínica de Profundización Endodoncia y Periodoncia]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Escuela Nacional de Estudios Superiores ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Nacional Autónoma de México Facultad de Odontología ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad Pedagógica Nacional  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>23</volume>
<numero>3</numero>
<fpage>192</fpage>
<lpage>195</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2019000300192&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2019000300192&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2019000300192&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las variantes anatómicas del primer molar superior incluyen con mayor frecuencia la presencia de un segundo conducto en la raíz mesial. Sin embargo, hay escasos reportes sobre la presencia de dos conductos en la raíz palatina (0.04% del total de molares superiores). Se presenta un caso de un primer molar superior con diagnóstico de necrosis pulpar con periodontitis apical sintomática. Al realizar el acceso y la exploración del piso de la cámara pulpar se encontraron dos entradas de conductos en la región de la raíz palatina. Se realizan radiografías de conductometría, conometría y prueba de obturación. Se realza la importancia del uso de los auxiliares de diagnóstico imagenológicos, estando siempre alertas a la posibilidad de encontrarse con variantes anatómicas locorregionales.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Anatomical variations of the first upper molar most often include the presence of a second canal in the mesial root. However, some studies report the presence of two canals in the palatine root (0.04% of the total upper molars). A case of a first upper molar with a diagnosis of pulp necrosis with symptomatic apical periodontitis is presented. Upon exploration of the pulp chamber floor, two canal entries were found in the palatine root region. Root canal length and taper were assessed by radiography, and obturation test was performed. The relevance of diagnostic imaging assistants as aids for the detection of locoregional anatomical variants is emphasized.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Conductos radiculares palatinos]]></kwd>
<kwd lng="es"><![CDATA[obturación]]></kwd>
<kwd lng="es"><![CDATA[variante anatómica]]></kwd>
<kwd lng="es"><![CDATA[molares superiores]]></kwd>
<kwd lng="es"><![CDATA[endodoncia]]></kwd>
<kwd lng="en"><![CDATA[Palatal root canals]]></kwd>
<kwd lng="en"><![CDATA[obturation]]></kwd>
<kwd lng="en"><![CDATA[anatomical variation]]></kwd>
<kwd lng="en"><![CDATA[maxillary molars]]></kwd>
<kwd lng="en"><![CDATA[endodontics]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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