<?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>1561-3194</journal-id>
<journal-title><![CDATA[Revista de Ciencias Médicas de Pinar del Río]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Ciencias Médicas]]></abbrev-journal-title>
<issn>1561-3194</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1561-31942023000800028</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Uso de la toxina botulínica tipo A como tratamiento en la sonrisa gingival]]></article-title>
<article-title xml:lang="en"><![CDATA[Use of botulinum toxin type A as a treatment for the gummy smile]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Rosero]]></surname>
<given-names><![CDATA[Oswaldo Damián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paredes-Herrera]]></surname>
<given-names><![CDATA[María Eugenia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moyano-Carrera]]></surname>
<given-names><![CDATA[María Augusta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Regional Autónoma de Los Andes  ]]></institution>
<addr-line><![CDATA[Ambato ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2023</year>
</pub-date>
<volume>27</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1561-31942023000800028&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1561-31942023000800028&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1561-31942023000800028&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La toxina botulínica es una toxina mortal producida por la bacteria grampositiva Clostridium botulinum. En odontología, se considera un tratamiento sustancial en la hiperactividad muscular que trae como consecuencia una característica antiestética como lo es la &#8220;sonrisa gingival&#8221; en el paciente. El presente estudio se realizó con el objetivo de describir el uso de la toxina botulínica tipo A como tratamiento en la ya mencionada sonrisa gingival. Para ello se realizó una búsqueda de información en las bases de datos Scopus, ProQuest Salud y Web of Science. Para su elaboración se utilizaron las directrices de la declaración PRISMA. Se concluyó que la aplicación de BoNTA reduce la contracción de los músculos encargados de elevar el labio superior, disminuyendo la exposición gingival, siendo este el tratamiento menos invasivo, más eficaz rápido y seguro para el paciente devolviendo al paciente una sonrisa armónica y visiblemente estética.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Botulinum toxin is a deadly toxin produced by the gram-positive bacterium Clostridium botulinum. In dentistry, it is considered a substantial treatment for muscular hyperactivity that results in an unsightly characteristic such as the "gummy smile" in the patient. The present study was carried out with the aim of describing the use of botulinum toxin type A as a treatment for the aforementioned gummy smile. For this purpose, a search for information was carried out in the Scopus, ProQuest Health and Web of Science databases. The guidelines of the PRISMA declaration were used for its elaboration. It was concluded that the application of BoNTA reduces the contraction of the muscles responsible for elevating the upper lip, reducing gingival exposure, this being the least invasive, most effective, quickest and safest treatment for the patient, giving the patient a harmonious and visibly esthetic smile.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[CLOSTRIDIUM BOTULINUM]]></kwd>
<kwd lng="es"><![CDATA[TOXINAS BOTULÍNICAS TIPO A]]></kwd>
<kwd lng="es"><![CDATA[ESTÉTICA]]></kwd>
<kwd lng="es"><![CDATA[MÚSCULOS]]></kwd>
<kwd lng="es"><![CDATA[ODONTOLOGÍA]]></kwd>
<kwd lng="en"><![CDATA[CLOSTRIDIUM BOTULINUM]]></kwd>
<kwd lng="en"><![CDATA[BOTULINUM TOXINS, TYPE A]]></kwd>
<kwd lng="en"><![CDATA[ESTHETICS]]></kwd>
<kwd lng="en"><![CDATA[MUSCLES]]></kwd>
<kwd lng="en"><![CDATA[DENTISTRY]]></kwd>
</kwd-group>
</article-meta>
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<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gregnanin Pedron]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Mangano]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Gummy Smile Correction Using Botulinum Toxin With Respective Gingival Surgery.]]></article-title>
<source><![CDATA[J Dent (Shiraz)]]></source>
<year>2018</year>
<volume>19</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>248-52.</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
