<?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>1608-8921</journal-id>
<journal-title><![CDATA[Gaceta Médica Espirituana]]></journal-title>
<abbrev-journal-title><![CDATA[Gac Méd Espirit]]></abbrev-journal-title>
<issn>1608-8921</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Médicas de Sancti Spíritus]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1608-89212022000200014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Una díada de riesgo: periodontitis y COVID-19]]></article-title>
<article-title xml:lang="en"><![CDATA[A risk dyad: periodontitis and COVID-19]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez Sánchez]]></surname>
<given-names><![CDATA[Raciel Jorge]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sigcho Romero]]></surname>
<given-names><![CDATA[Cristian Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Niño Peña]]></surname>
<given-names><![CDATA[Aluett]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Chimborazo  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas &#8220;Mariana Grajales Coello&#8221;  ]]></institution>
<addr-line><![CDATA[Holguín ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>24</volume>
<numero>2</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1608-89212022000200014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1608-89212022000200014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1608-89212022000200014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Fundamento:  La COVID-19 es una pandemia causada por el virus SARS-CoV-2 y su asociación con la periodontitis podría tener resultados adversos.  Objetivo:  Evaluar la asociación entre la periodontitis y los resultados adversos de la COVID-19.  Desarrollo:  Se realizó una revisión bibliográfica en Google Académico, SciELO y PubMed Central con los descriptores SARS-CoV-2, COVID-19, periodontitis y enfermedad periodontal consultados en el DeCS. Se seleccionaron artículos a texto completo en español e inglés, principalmente de revistas arbitradas por pares. La periodontitis se asocia significativamente a la gravedad de la COVID-19. Los probables mecanismos que vinculan a la periodontitis con la COVID-19 grave son el favorecimiento de la replicación viral, la inflamación por disfunción inmune, la disbiosis con infección bacteriana sobreañadida y la presencia de comorbilidades. La toma de medidas de bioseguridad e higiene en la atención de los pacientes podría contribuir a un curso clínico más favorable de la COVID-19.  Conclusiones:  La periodontitis parece asociarse con resultados desfavorables de la COVID-19, lo que recalca la importancia de la atención estomatológica de estos pacientes.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background:  COVID-19 is a pandemic caused by SARS-CoV-2 virus and its association with periodontitis could have adverse outcomes.  Objective:  To evaluate the association between periodontitis and adverse outcomes of COVID-19.  Methodology:  A literature review was performed in Google Scholar, SciELO and PubMed Central with the descriptors SARS-CoV-2, COVID-19, periodontitis and periodontal disease consulted in DeCS. Full-text articles in Spanish and English were selected, mainly from peer-reviewed journals.  Results:  Periodontitis is significantly associated with COVID-19 severity. Probable mechanisms linking periodontitis with severe COVID-19 are favoring viral replication, inflammation due to immune dysfunction, dysbiosis with superimposed bacterial infection, and the presence of comorbidities. Taking biosecurity and hygiene measures in patient care could favor a more favorable clinical course of COVID-19.  Conclusions:  Periodontitis appears to be associated with unfavorable COVID-19 outcomes, emphasizing the importance of stomatologic care of these patients.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[COVID-19]]></kwd>
<kwd lng="es"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="es"><![CDATA[periodontitis]]></kwd>
<kwd lng="es"><![CDATA[enfermedad periodontal]]></kwd>
<kwd lng="es"><![CDATA[infecciones por coronavirus]]></kwd>
<kwd lng="es"><![CDATA[virus del SRAS]]></kwd>
<kwd lng="en"><![CDATA[COVID-19]]></kwd>
<kwd lng="en"><![CDATA[SARS-CoV-2]]></kwd>
<kwd lng="en"><![CDATA[periodontitis]]></kwd>
<kwd lng="en"><![CDATA[periodontal disease]]></kwd>
<kwd lng="en"><![CDATA[coronavirus infections]]></kwd>
<kwd lng="en"><![CDATA[SARS virus]]></kwd>
</kwd-group>
</article-meta>
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