<?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>S0034-75072019000400008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación entre edad cronológica y dental en niños de dos localidades peruanas de diferente altitud]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparison between chronological and dental age in children from two peruvian locations at different altitude]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guevara-Canales]]></surname>
<given-names><![CDATA[Janet-Ofelia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Adriano-Sullcaray]]></surname>
<given-names><![CDATA[Jhon]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Vadillo]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cava-Vergiú]]></surname>
<given-names><![CDATA[Carlos-Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de San Martín de Porres (FO-USMP) Facultad de Odontología ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>56</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072019000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072019000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072019000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: El nivel de maduración dental como indicador del nivel de maduración general de acuerdo con el método de Demirjian, puede ser afectado por la altitud geográfica.  Objetivo: Determinar la relación de las edades cronológica y dental según el método Demirjian en niños de dos localidades peruanas con diferente altitud.  Métodos: Se realizó un estudio observacional, analítico, retrospectivo de corte transversal, que tuvo como muestra a 179 radiografías panorámicas de niños peruanos entre 6 y 12 años: 109 radiografías de niños de la ciudad de Lima y 70 radiografías de niños de la ciudad de Huancayo. Se determinó la edad dental según el método de Demirjian, luego se relacionó con la edad cronológica en cada paciente de las dos localidades; posteriormente se comparó las diferencias de las edades en las dos ciudades.  Resultados: Se encontró correlación estadísticamente significativa entre la edad dental y la cronológica en ambos sexos de pacientes de la ciudad de Lima (p&lt; 0,001); mientras que solo se encontró correlación estadísticamente significativa entre la edad dental y la edad cronológica en el sexo masculino en la ciudad de Huancayo (p&lt; 0,001 para el sexo masculino y p= 0,740 para el femenino). La comparación de las diferencias entre edad cronológica y edad dental de los pacientes de las dos ciudades es no estadísticamente significativa (U de Mann-Whitney, p= 0,057).  Conclusiones: No se encontró correlación significativa entre las edades dentales y cronológicas en el sexo femenino de los pacientes habitantes a mayor altitud y al comparar las diferencias, entre la edad cronológica y la edad dental según el método Demirjian, en los habitantes de las localidades peruanas no se encontró diferencia estadísticamente significativa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: The degree of dental maturation as an indicator of the degree of general maturation, according to Demirjian&#8217;s method, may be affected by geographic altitude.  Aim: To determine the relationship between chronological age and dental age according to Demirjian&#8217;s method in children from two Peruvian locations at different altitudes.  Methods: An observational, analytical, retrospective, cross-sectional study was performed on a sample of 179 panoramic radiographs of Peruvian children aged 6 to 12 years. Group A: 109 radiographs of children from Lima City; Group B: 70 radiographs of children from Huancayo City. Dental age was determined according to Demirjian&#8217;s method and related to chronological age for each patient from each location, and the differences were compared for ages in both cities.  Results: A statistically significant correlation was found between dental and chronological age for both sexes in patients from Lima City (p&lt; 0.001), but only for male patients from Huancayo City (p&lt; 0.001 for males and p= 0.740 for females). The differences between chronological age and dental age were not statistically significant in patients from either city (Mann-Whitney U test, p= 0.057).  Conclusions: No significant correlation was found between dental age and chronological age in female patients living at higher altitude, and no statistically significant difference was found between chronological age and dental age according to Demirjian&#8217;s method for children living in either city.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[altitud]]></kwd>
<kwd lng="es"><![CDATA[radiografía panorámica]]></kwd>
<kwd lng="es"><![CDATA[determinación de la edad por los dientes]]></kwd>
<kwd lng="en"><![CDATA[altitude]]></kwd>
<kwd lng="en"><![CDATA[panoramic radiographies]]></kwd>
<kwd lng="en"><![CDATA[age determination by teeth]]></kwd>
</kwd-group>
</article-meta>
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