<?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>1688-9339</journal-id>
<journal-title><![CDATA[Odontoestomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Odontoestomatología]]></abbrev-journal-title>
<issn>1688-9339</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Odontología - Universidad de la República]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1688-93392022000101410</article-id>
<article-id pub-id-type="doi">10.22592/ode2022n39e410</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Morfología inusual de raíz y canales del primer molar mandibular, como indicación de tomografía computarizada de haz cónico: A propósito de un caso endodóntico "fronterizo"]]></article-title>
<article-title xml:lang="pt"><![CDATA[Morfologia incomum da raiz e do canal do primeiro molar inferior, como indicação para tomografia computadorizada de feixe cônico: sobre um caso endodôntico "limítrofe"]]></article-title>
<article-title xml:lang="en"><![CDATA[Unusual root and canal morphology of the mandibular first molar as an indication for cone-beam computed tomography: About a &#8220;borderline&#8221; endodontic case]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Matus]]></surname>
<given-names><![CDATA[Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fonseca]]></surname>
<given-names><![CDATA[Gabriel M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de La Frontera Facultad de Odontología Departamento Odontología Integral Adulto]]></institution>
<addr-line><![CDATA[Temuco ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de La Frontera Facultad de Odontología Centro de Investigación en Odontología Legal y Forense]]></institution>
<addr-line><![CDATA[Temuco ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>24</volume>
<numero>39</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-93392022000101410&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-93392022000101410&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-93392022000101410&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La Tomografía Computarizada de Haz Cónico (CBCT) representa una promisoria herramienta para la clínica odontológica. En Endodoncia, CBCT ofrece tridimensionalidad y resolución imagenológica, potenciando el diagnóstico de diferentes condiciones patológicas. Sin embargo, su limitación por sobreexposición a radiación, ha llevado a directrices que recomiendan cautela para su indicación. Se presenta un caso infrecuente de un molar mandibular con una sola raíz y canal, y las circunstancias de uso de CBCT. Mujer de 48 años es derivada para endodoncia del primer molar mandibular izquierdo permanente. El examen radiográfico preoperatorio demostró el hallazgo inusual de un canal centrado en una única raíz. Con la información apropiada y el consentimiento de la paciente, la indicación de CBCT favoreció su diagnóstico y tratamiento. CBCT no debería ser utilizada rutinariamente para estos fines, pero podría justificarse en casos "fronterizos". Se discuten su indicación e implementación clínica, siguiendo actuales recomendaciones y directrices.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo A tomografia computadorizada de feixe cônico (TCFC) representa uma ferramenta promissora para a clínica odontológica. Na Endodontia, a CBCT oferece tridimensionalidade e resolução de imagem, potencializando o diagnóstico de diferentes condições patológicas. No entanto, sua limitação devido à superexposição à radiação levou a diretrizes que recomendam cautela em sua indicação. Um caso raro de um molar inferior com uma única raiz e canal é apresentado e as circunstâncias do uso da TCFC. Uma mulher de 48 anos é encaminhada para tratamento de canal para o primeiro molar inferior esquerdo permanente. O exame radiográfico pré-operatório demonstrou o achado incomum de um canal centrado em uma única raiz. Com as devidas informações e o consentimento do paciente, a indicação da TCFC favoreceu seu diagnóstico e tratamento. A CBCT não deve ser usada rotineiramente para esses fins, mas pode ser justificada em casos "fronteiriços". Sua indicação e implementação clínica são discutidas, seguindo as recomendações e diretrizes atuais.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Cone-beam computed tomography (CBCT) is a promising tool in dental practice. CBCT provides three-dimensional images and imaging resolution to be used in endodontics. This enhances the diagnosis of various pathologies. However, guidelines have recommended limiting its use due to overexposure to radiation. This article presents the rare case of a mandibular molar with a single root and canal that benefited from taking a CBCT. A 48-year-old woman is referred for endodontic treatment of the permanent left mandibular first molar. The preoperative radiographic examination showed an unusual canal centered along a single root. Taking a CBCT with the relevant information and the patient&#8217;s consent improved her diagnosis and treatment. CBCTs should not be used routinely for these purposes but could be justified in &#8220;borderline&#8221; cases. This paper discusses its indication and clinical implementation following current recommendations and guidelines.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Tomografía computarizada de haz cónico]]></kwd>
<kwd lng="es"><![CDATA[endodoncia]]></kwd>
<kwd lng="es"><![CDATA[diagnóstico]]></kwd>
<kwd lng="es"><![CDATA[bioética]]></kwd>
<kwd lng="es"><![CDATA[anomalías dentales]]></kwd>
<kwd lng="es"><![CDATA[comportamiento de reducción de riesgos]]></kwd>
<kwd lng="pt"><![CDATA[Tomografia computadorizada de feixe cônico]]></kwd>
<kwd lng="pt"><![CDATA[endodontia]]></kwd>
<kwd lng="pt"><![CDATA[diagnóstico]]></kwd>
<kwd lng="pt"><![CDATA[bioética]]></kwd>
<kwd lng="pt"><![CDATA[anormalidades dentárias]]></kwd>
<kwd lng="pt"><![CDATA[comportamento de redução de risco]]></kwd>
<kwd lng="en"><![CDATA[Cone-Beam Computed Tomography]]></kwd>
<kwd lng="en"><![CDATA[endodontics]]></kwd>
<kwd lng="en"><![CDATA[diagnosis]]></kwd>
<kwd lng="en"><![CDATA[bioethics]]></kwd>
<kwd lng="en"><![CDATA[tooth abnormalities]]></kwd>
<kwd lng="en"><![CDATA[risk-reduction behavior]]></kwd>
</kwd-group>
</article-meta>
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