<?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>S0034-75072021000300010</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Riesgo biológico del blanqueamiento dental interno]]></article-title>
<article-title xml:lang="en"><![CDATA[Biological risk posed by internal tooth whitening]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chaple Gil]]></surname>
<given-names><![CDATA[Alain Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández Godoy]]></surname>
<given-names><![CDATA[Eduardo Maximiliano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quintana Muñoz]]></surname>
<given-names><![CDATA[Lisandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bersezio]]></surname>
<given-names><![CDATA[Cristian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias Médicas de La Habana Facultad de Ciencias Médicas &#8220;Victoria de Girón&#8221; Departamento Carrera de Estomatología]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Chile Facultad de Odontología Departamento de Odontología Restauradora]]></institution>
<addr-line><![CDATA[Santiago de Chile ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Chile Instituto de Investigaciones Biomédicas ]]></institution>
<addr-line><![CDATA[Santiago de Chile ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Policlínico Provincial de Urgencia &#8220;Docente de Playa&#8221;  ]]></institution>
<addr-line><![CDATA[La Habana ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>58</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072021000300010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072021000300010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072021000300010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El blanqueamiento dental interno forma parte de la práctica odontológica desde hace varias décadas, pero se han descrito riesgos biológicos de los cuales no existe mucha evidencia.  Objetivo:  Describir los riesgos biológicos provocados por el blanqueamiento dental interno en dientes no vitales.  Métodos:  Se realizó una revisión sistemática exploratoria en la base de datos bibliográfica PubMed empleando operadores booleanos y palabras clave que aparecen recogidas en los Descriptores en Ciencias de la Salud. Las variables estudiadas fueron: autor principal, título, año de publicación, tipo de artículo, revista donde se publicaron los artículos y riesgo biológico del blanqueamiento interno descrito. Se filtraron y procesaron los resultados en una base de datos y se analizaron los textos completos para evaluar su calidad y que estos cumplieran los criterios de inclusión y exclusión.  Resultados:  Fueron incluidos en el estudio 14 artículos, todos por investigaciones originales o revisiones sistemáticas. El 64,3 % de los artículos proyectaba los hallazgos hacia la presencia de reabsorciones cervicales externas posterior al blanqueamiento dental interno. El resto no aportó evidencia alguna de riesgos biológicos luego del tratamiento descrito.  Conclusiones:  Más de la mitad de los artículos incluidos en el estudio concluyeron que la reabsorción cervical externa es el principal riesgo biológico que trae consigo el tratamiento blanqueador interno de dientes no vitales, apoyados por un factor desencadenante de historial de traumatismos dentarios que propician la aparición de estas afectaciones.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Internal tooth whitening has been a component of dental practice for several decades, but biological risks have been described about which not much evidence is available.  Objective:  Describe the biological risks posed by internal tooth whitening in nonvital teeth.  Methods:  An exploratory systematic review was conducted in the bibliographic database PubMed using Boolean operators and key words obtained from Health Sciences Descriptors. The variables analyzed were main author, title, year of publication, article type, journal where the articles were published and biological risk of the internal tooth whitening procedure described. Results were filtered and processed in a database and full texts were analyzed for quality and compliance with the inclusion and exclusion criteria.  Results:  A total 14 articles were included in the study, all of which were either original studies or systematic reviews. In 64.3% of the articles, findings had to do with the presence of external cervical resorption after internal tooth whitening. The remaining articles did not contribute any evidence of biological risks after the treatment described.  Conclusions:  More than half of the articles included in the study concluded that external cervical resorption is the main biological risk posed by internal whitening of nonvital teeth, supported by the triggering factor of a history of dental trauma leading to the occurrence of these disorders.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[blanqueamiento dental]]></kwd>
<kwd lng="es"><![CDATA[blanqueamiento interno]]></kwd>
<kwd lng="es"><![CDATA[riesgos, efectos adversos]]></kwd>
<kwd lng="en"><![CDATA[tooth whitening]]></kwd>
<kwd lng="en"><![CDATA[internal whitening]]></kwd>
<kwd lng="en"><![CDATA[risks]]></kwd>
<kwd lng="en"><![CDATA[adverse effects]]></kwd>
</kwd-group>
</article-meta>
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