<?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>0034-7507</journal-id>
<journal-title><![CDATA[Revista Cubana de Estomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Estomatol]]></abbrev-journal-title>
<issn>0034-7507</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75072023000300005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Alteración en la integridad de la membrana basal en agrandamiento gingival inducido por tratamiento ortodóncico]]></article-title>
<article-title xml:lang="en"><![CDATA[Alteration of the Basal Membrane Integrity in Orthodontic Treatment-Induced Gingival Enlargement]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Simancas-Escorcia]]></surname>
<given-names><![CDATA[Víctor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Herrera-Herrera]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Díaz-Caballero]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Sinú - Cartagena Facultad de Ciencias de la Salud Grupo GENOMA]]></institution>
<addr-line><![CDATA[Cartagena ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Metropolitana  ]]></institution>
<addr-line><![CDATA[Barranquilla ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Cartagena Facultad de Odontología Grupo interdisciplinario de investigaciones y tratamientos odontológicos Universidad de Cartagena (GITOUC)]]></institution>
<addr-line><![CDATA[Cartagena ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2023</year>
</pub-date>
<volume>60</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072023000300005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072023000300005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072023000300005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: El agrandamiento gingival inducido por tratamiento de ortodoncia es un aumento progresivo, localizado o generalizado del tejido gingival.  Objetivo:  Determinar aspectos morfológicos en la membrana basal del tejido gingival de pacientes con agrandamiento gingival inducido por tratamiento de ortodoncia.  Métodos:  Estudio descriptivo de corte transversal, donde se analizaron tejidos gingivales de pacientes con agrandamiento gingival inducido por tratamiento de ortodoncia (grupo test: n=5) e individuos sanos (grupo control: n=5) mediante análisis histológicos e inmunohistoquímico con anticuerpo policlonal anti-citoqueratina 14. Las interrupciones de la membrana basal grado 1 y grado 2 fueron identificadas. Fue utilizado el programa estadístico R versión 4.0.2 para Windows. Se declaró significancia si p &lt;0,05.  Resultados: Se constató la presencia de rupturas de la membrana basal en todos los pacientes del grupo test. Estos individuos presentaron una mayor cantidad de cambios morfológicos en el tejido gingival. Exponiendo así, valores estadísticamente significativos de rupturas de la membrana basal (Grado I) y rupturas rodeadas de células epiteliales y/o fibroblastos gingivales (Grado II) en comparación con el grupo control (p &lt;0,001).  Conclusión:  El tejido epitelial de pacientes con agrandamiento gingival inducido por tratamiento de ortodoncia presenta una evidente pérdida en la integridad de la membrana basal. Estas discontinuidades sugieren un aumento considerable de la plasticidad del epitelio en pacientes con agrandamiento gingival inducido por tratamiento de ortodoncia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Orthodontic treatment-induced gingival enlargement is a progressive, localized or generalized increase in gingival tissue.  Objective:  To determine morphologic aspects in the basal membrane of the gingival tissue in patients with orthodontic treatment-induced gingival enlargement.  Methods:  A descriptive and cross-sectional study was carried out, in which gingival tissues of patients with orthodontic treatment-induced gingival enlargement (test group: n=5) and healthy individuals (control group: n=5) were analyzed by histological and immunohistochemical analysis with the polyclonal antibody anticytokeratin 14. Grade 1 and grade 2 disrupted basal membrane were identified. The statistical program R (version 4.0.2) for Windows was used. Significance was declared if p was greater than 0.05.  Results:  The presence of disrupted basal membranes was observed in all the patients from the test group. These individuals presented a greater number of morphological changes in the gingival tissue. Compared to the control group (p &lt; 0.001), statistically significant values were observed for cases of disrupted basal membrane (grade I) and disruptions surrounded by epithelial cells or gingival fibroblasts (grade II).  Conclusion:  The epithelial tissue of patients with orthodontic treatment-induced gingival enlargement shows an evident loss of the basal membrane integrity. These discontinuities are suggestive of a considerable increase in epithelial plasticity in patients with orthodontic treatment-induced gingival enlargement.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[sobrecrecimiento gingival]]></kwd>
<kwd lng="es"><![CDATA[membrana basal]]></kwd>
<kwd lng="es"><![CDATA[ortodoncia]]></kwd>
<kwd lng="es"><![CDATA[encía]]></kwd>
<kwd lng="es"><![CDATA[transición epitelial-mesénquima]]></kwd>
<kwd lng="en"><![CDATA[gingival overgrowth]]></kwd>
<kwd lng="en"><![CDATA[basal membrane]]></kwd>
<kwd lng="en"><![CDATA[orthodontics]]></kwd>
<kwd lng="en"><![CDATA[gum]]></kwd>
<kwd lng="en"><![CDATA[epithelial-mesenchymal transition]]></kwd>
</kwd-group>
</article-meta>
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