<?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>S1870-199X2025000100032</article-id>
<article-id pub-id-type="doi">10.22201/fo.1870199xp.2025.29.1.91514</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Tracción ortodóncica del incisivo central permanente superior impactado: Reporte de dos casos]]></article-title>
<article-title xml:lang="en"><![CDATA[Orthodontic Traction of the Impacted Upper Permanent Central Incisor: Report of Two Cases]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Toledo-Pinto]]></surname>
<given-names><![CDATA[Ximena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valenzuela-Salas]]></surname>
<given-names><![CDATA[Juan Guillermo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berdeja-Zamalloa]]></surname>
<given-names><![CDATA[Paola]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monterey-Catalán]]></surname>
<given-names><![CDATA[Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fratte-Otero]]></surname>
<given-names><![CDATA[María Ignacia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Chile  ]]></institution>
<addr-line><![CDATA[Santiago de Chile ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Mayor Facultad de Medicina y Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[Santiago de Chile ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Andrés Bello Facultad de Odontología ]]></institution>
<addr-line><![CDATA[Santiago de Chile ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de los Andes Facultad de Odontología ]]></institution>
<addr-line><![CDATA[Santiago de Chile ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<volume>29</volume>
<numero>1</numero>
<fpage>32</fpage>
<lpage>42</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2025000100032&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2025000100032&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2025000100032&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción La impactación del incisivo central permanente superior es una condición poco frecuente; afecta entre el 0.05% y el 3-4% de los pacientes, se presenta comúnmente en dentición mixta. La impactación puede ser causada por factores obstructivos como dientes supernumerarios o traumatismos que afectan la formación radicular. Esta condición puede tener un impacto significativo en la estética, la función y la salud psicológica del paciente. La tracción ortodóncica es una estrategia terapéutica efectiva para tratar estos casos.  Objetivo Demostrar la eficacia del tratamiento ortodóncico-quirúrgico mediante tracción y control de torque en dientes impactados debido a la presencia de dientes supernumerarios.  Presentación de casos Caso 1: Paciente femenina de 9 años con dentición mixta temprana y ausencia del diente incisivo central superior izquierdo permanente. Se realizó la exposición quirúrgica y tracción ortodóncica utilizando un botón vestibular y brazo de tracción. La erupción del diente incisivo central superior izquierdo permanente se logró en aproximadamente 8 semanas, seguido de la instalación de aparatología fija para alineación. Caso 2: Paciente masculino de 8 años con dentición mixta temprana y diente incisivo central superior derecho permanente impactado. Se llevó a cabo una cirugía de exposición dentaria y tracción con disyuntor McNamara. La tracción permitió la erupción del diente incisivo central superior derecho permanente en 28 semanas, seguida de la colocación de aparatos fijos para la alineación.  Conclusiones La tracción ortodóncica, complementada con una adecuada intervención quirúrgica para la eliminación de obstrucciones, demostró ser efectiva en ambos casos, logrando la erupción de los incisivos impactados sin secuelas significativas. La planificación cuidadosa de la dirección y magnitud de la fuerza aplicada es crucial para un tratamiento exitoso. La intervención temprana es clave para evitar complicaciones y asegurar resultados estéticos y funcionales favorables.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction Impaction of the permanent upper central incisor is a rare condition, affecting between 0.05% and 3-4% of patients. It most commonly appears during the mixed dentition phase. Impaction may be caused by obstructive factors such as supernumerary teeth or trauma affecting root formation. This condition can have a significant impact on a patient&#8217;s aesthetics, function, and psychological well-being. Orthodontic traction is an effective therapeutic strategy for managing these cases.  Objectives To demonstrate the effectiveness of orthodontic-surgical treatment through traction and torque control in impacted teeth due to supernumerary teeth.  Case Presentations Case 1: A 9-year-old female patient with early mixed dentition and absence of the permanent upper left central incisor. A surgical exposure was performed, followed by orthodontic traction using a buccal button and a traction arm. Eruption of the permanent upper left central incisor was achieved in approximately 8 weeks, followed by the placement of fixed appliances for alignment. Case 2: An 8-year-old male patient with early mixed dentition and an impacted permanent upper right central incisor. Surgical exposure was performed; a McNamara expander was used for traction. Traction allowed the eruption of the permanent upper right central incisor in 28 weeks, followed by the application of fixed appliances for alignment.  Conclusions Orthodontic traction -complemented by surgical intervention to remove obstructions- proved effective in both cases, achieving the eruption of impacted incisors without significant sequelae. Careful planning of the direction and magnitude of applied force is crucial for successful treatment. Early intervention is key to avoiding complications and ensuring favorable aesthetic and functional outcomes.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Impactación dentaria]]></kwd>
<kwd lng="es"><![CDATA[tracción ortodóncica]]></kwd>
<kwd lng="es"><![CDATA[exposición quirúrgica]]></kwd>
<kwd lng="es"><![CDATA[ortodoncia quirúrgica]]></kwd>
<kwd lng="en"><![CDATA[Dental impaction]]></kwd>
<kwd lng="en"><![CDATA[orthodontic traction]]></kwd>
<kwd lng="en"><![CDATA[surgical exposure]]></kwd>
<kwd lng="en"><![CDATA[surgical orthodontics]]></kwd>
</kwd-group>
</article-meta>
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<name>
<surname><![CDATA[Sezer]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Okutan]]></surname>
<given-names><![CDATA[AE]]></given-names>
</name>
<name>
<surname><![CDATA[Sezgin]]></surname>
<given-names><![CDATA[BI]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Retrospective evaluation of traction time for impacted dilacerated maxillary central incisors in mixed dentition]]></article-title>
<source><![CDATA[J Stomatol Oral Maxillofac Surg]]></source>
<year>2023</year>
<volume>124</volume>
<numero>6</numero>
<issue>6</issue>
</nlm-citation>
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</back>
</article>
