<?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>1025-0255</journal-id>
<journal-title><![CDATA[Revista Archivo Médico de Camagüey]]></journal-title>
<abbrev-journal-title><![CDATA[Arch méd Camagüey]]></abbrev-journal-title>
<issn>1025-0255</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Camagüey]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1025-02552022000100013</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilización del botón de Nance modificado para la propulsión mandibular]]></article-title>
<article-title xml:lang="en"><![CDATA[Utilization of the modified Nance button for mandibular propulsion]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Verano-Luis]]></surname>
<given-names><![CDATA[Leiser]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosa-Cabrera]]></surname>
<given-names><![CDATA[Yenelis de la]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez-García]]></surname>
<given-names><![CDATA[Lizandro Michel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Marín]]></surname>
<given-names><![CDATA[Osvaldo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas Clínica Estomatológica Docente Provincial Dr. Justo Ortelio Pestana Lorenzo Servicio de Ortodoncia]]></institution>
<addr-line><![CDATA[Sancti Spíritus ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2022</year>
</pub-date>
<volume>26</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1025-02552022000100013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1025-02552022000100013&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1025-02552022000100013&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  En sus inicios la mayoría de los aparatos funcionales fueron removibles, pero cada día más se incrementan los fijos. Su combinación puede incrementar la eficacia en el tratamiento del retrognatimo mandibular.  Objetivo:  Presentar los resultados del tratamiento con el botón de Nance modificado en una paciente con retrognatismo mandibular.  Caso clínico: Paciente femenina de 13 años de edad, que presenta perfil convexo, disfunción neuromuscular, dentición permanente en ambos maxilares con presencia de ligero apiñamiento anterior, relación molar bilateral de distoclusión de ½ unidad, resalte y sobrepase incisivos de 6 mm, mala relación intermaxilar causada por retrognatismo de la mandíbula y escaso remanente de crecimiento mandibular activo. La primera etapa del tratamiento, incluyó psicoterapia, mioterapia y avance mandibular con un aparato funcional fijo (botón de Nance modificado para la propulsión mandibular). A los nueve meses de iniciar el tratamiento se comprobó el cambio en las relaciones intermaxilares en sentido antero-posterior, con disminución del ángulo ANB hasta 20 e incremento del SNB a 78, como reflejo de una buena relación de las bases ósea por crecimiento mandibular.  Conclusiones: El tratamiento realizado a la paciente con el botón de Nance modificado para la propulsión mandibular, permitió la obtención de relaciones intermaxilares favorables.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: In the beginning, most of the functional appliances were removable, but the fixed ones are increasing every day. Their combination can increase the effectiveness in the treatment of mandibular retrognathymus.  Objective:  To present the results of the treatment of a patient with mandibular retrognathism treated with the modified Nance button.  Case report: A 13-year-old female patient with convex profile, neuromuscular dysfunction, permanent dentition in both jaws with the presence of slight anterior crowding, bilateral distoclusion molar ratio of ½ unit, incisor protrusion and overhang of 6 mm, poor intermaxillary relationship caused by retrognathism of the mandible and little remnant of active mandibular growth. The first stage of treatment included psychotherapy, myotherapy and mandibular advancement with a fixed functional appliance (modified Nance button for mandibular propulsion). Nine months after starting the treatment, the change in the intermaxillary relationships in the anteroposterior direction was verified, with a decrease in the ANB angle to 20 and an increase in the SNB to 78, as a reflection of a good relationship of the bone bases due to mandibular growth.  Conclusions:  One year after treatment with the modified Nance button for mandibular propulsion, a correct relationship of the patient's bone bases was achieved.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ORTODONCIA/instrumentación]]></kwd>
<kwd lng="es"><![CDATA[ANOMALÍAS MAXILOMANDIBULARES]]></kwd>
<kwd lng="es"><![CDATA[APARATOS ACTIVADORES]]></kwd>
<kwd lng="es"><![CDATA[MALOCLUSIÓN DE ANGLE CLASE II]]></kwd>
<kwd lng="es"><![CDATA[APARATOS ORTODÓNCICOS FIJOS.]]></kwd>
<kwd lng="en"><![CDATA[ORTHODONTICS/instrumentation]]></kwd>
<kwd lng="en"><![CDATA[JAW ABNORMALITIES]]></kwd>
<kwd lng="en"><![CDATA[ACTIVATOR APPLIANCES]]></kwd>
<kwd lng="en"><![CDATA[MALOCCLUSION, ANGLE CLASS II]]></kwd>
<kwd lng="en"><![CDATA[ORTHODONTIC APPLIANCES, FIXED]]></kwd>
</kwd-group>
</article-meta>
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