<?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>S1688-93392025000101339</article-id>
<article-id pub-id-type="doi">10.22592/ode2025n45e339</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Reabsorciones cervicales externas: ¿por qué se producen?]]></article-title>
<article-title xml:lang="pt"><![CDATA[Reabsorções cervicais externas: ¿por que ocorrem?]]></article-title>
<article-title xml:lang="en"><![CDATA[External cervical resorption: why does it occur?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garchitorena]]></surname>
<given-names><![CDATA[María Inés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bruzzone]]></surname>
<given-names><![CDATA[María Clara]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Udelar Facultad de Odontología Departamento de Odontología preventiva y restauradora]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Udelar Facultad de Odontología Departamento de Odontología preventiva y restauradora]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>27</volume>
<numero>45</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_arttext&amp;pid=S1688-93392025000101339&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_abstract&amp;pid=S1688-93392025000101339&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.edu.uy/scielo.php?script=sci_pdf&amp;pid=S1688-93392025000101339&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La reabsorción cervical externa (RCE) es una forma de destrucción del tejido dentario, relativamente poco frecuente pero muy agresiva. A pesar de los casos reportados a lo largo de décadas y de los estudios clínicos que las han investigado, su etiología aún no está clara. Este trabajo tiene como objetivo identificar los potenciales factores predisponentes relacionados al desarrollo de RCE. Para ello se realizó una revisión amplia de la literatura disponible, de tipo narrativa. En virtud de la evidencia encontrada se concluye que las RCE son procesos patológicos de etiología multifactorial. La combinación de factores predisponentes parece potenciar la posibilidad de que estos procesos se desarrollen. Los traumatismos dentarios, los movimientos ortodóncicos mediante fuerzas no controladas y los tratamientos de blanqueamiento interno con agentes en altas concentraciones combinados con aplicación de calor e incorrecta preparación cameral, parecen ser los factores más frecuentemente relacionados al desarrollo de RCE]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo A reabsorção cervical externa (RCE) é uma forma relativamente rara, mas muito agressiva, de destruição do tecido dentário. Apesar dos casos relatados ao longo de décadas e dos estudos clínicos que os investigaram, a sua etiologia ainda não é clara. Este trabalho tem como objetivo identificar potenciais fatores predisponentes relacionados ao desenvolvimento de reabsorções cervicais externas, para o que foi realizada uma ampla revisão da literatura narrativa disponível. Com base na evidência disponível, conclui-se que os RCE são processos patológicos de causa multifatorial e a combinação de fatores predisponentes parece aumentar a possibilidade de desenvolvimento destes processos. Trauma dentário, movimentações ortodônticas e tratamentos de clareamento interno com agentes em altas concentrações combinados com aplicação de calor e preparo incorreto da câmara, parecem ser os fatores mais frequentemente relacionados ao desenvolvimento de RCE.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract External cervical resorption (ECR) is a relatively rare but highly aggressive form of dental tissue destruction. Despite numerous reported cases over the decades and various clinical studies investigating this condition, its etiology remains unclear. This work aims to identify potential predisposing factors associated with the development of ECR through a broad narrative review of the available literature. Based on current evidence, it is concluded that ECR is a pathological process of multifactorial origin. The combination of predisposing factors appears to increase the likelihood of its development. The factors most frequently linked to ECR development include dental trauma, orthodontic movements involving uncontrolled forces, and internal bleaching treatments using highly concentrated agents combined with heat application and improper chamber preparation.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Reabsorción cervical externa]]></kwd>
<kwd lng="es"><![CDATA[traumatismo dentario]]></kwd>
<kwd lng="es"><![CDATA[blanqueamiento dental]]></kwd>
<kwd lng="pt"><![CDATA[Reabsorção cervical externa]]></kwd>
<kwd lng="pt"><![CDATA[traumatismo dentário]]></kwd>
<kwd lng="pt"><![CDATA[clareamento dental.]]></kwd>
<kwd lng="en"><![CDATA[External cervical resorption]]></kwd>
<kwd lng="en"><![CDATA[dental trauma]]></kwd>
<kwd lng="en"><![CDATA[tooth bleaching]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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