<?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>1665-1146</journal-id>
<journal-title><![CDATA[Boletín médico del Hospital Infantil de México]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Med. Hosp. Infant. Mex.]]></abbrev-journal-title>
<issn>1665-1146</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Salud, Hospital Infantil de México Federico Gómez]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-11462022000500293</article-id>
<article-id pub-id-type="doi">10.24875/bmhim.21000230</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Prevalence of premature loss of deciduous teeth and its relationship with gender among children from Acapulco, Guerrero: a cross-sectional study]]></article-title>
<article-title xml:lang="es"><![CDATA[Prevalencia de pérdida prematura de dientes deciduos y su relación con el género en niños de Acapulco, Guerrero: estudio transversal]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Palacios]]></surname>
<given-names><![CDATA[Juan J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castañeda-Ayala]]></surname>
<given-names><![CDATA[Jovanna J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Juárez-Medel]]></surname>
<given-names><![CDATA[Carlos A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barrios-Flores]]></surname>
<given-names><![CDATA[Juan E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Clemente]]></surname>
<given-names><![CDATA[Janitzie]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Ventura]]></surname>
<given-names><![CDATA[Evangelina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Salud Guadalupe Victoria  ]]></institution>
<addr-line><![CDATA[Acapulco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto de Salud para el Bienestar Unidad de Coordinación Nacional Médica ]]></institution>
<addr-line><![CDATA[Acapulco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Hipócrates Departamento de Odontología ]]></institution>
<addr-line><![CDATA[Acapulco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Secretaría de Salud Jurisdicción Sanitaria 07 ]]></institution>
<addr-line><![CDATA[Acapulco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad del Valle Departamento de Odontología ]]></institution>
<addr-line><![CDATA[Chilpancingo de los Bravos Guerrero]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2022</year>
</pub-date>
<volume>79</volume>
<numero>5</numero>
<fpage>293</fpage>
<lpage>299</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-11462022000500293&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-11462022000500293&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-11462022000500293&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background: Premature loss of deciduous teeth is the exfoliation or extraction before physiological replacement with &lt; 50% or &lt; 75% of the root of the substitute tooth formed or if there is &gt; 1 mm of alveolar bone covering the permanent successor tooth organ. This study aimed to estimate the prevalence of premature tooth loss in children and identify associated factors in a health center in Acapulco, Guerrero.  Methods: We conducted a cross-sectional study in which we collected information from 109 clinical records of children examined from January 2019 to August 2021. Sociodemographic data of the children and parents were collected: socioeconomic level, non-pathological personal history, and the history of premature deciduous tooth loss. Multivariate analysis to identify factors associated with premature deciduous tooth loss was performed with CIETmap statistical software. Odds ratio (OR) and 95% confidence interval (CI) were calculated to estimate the strength of the association.  Results: The prevalence of premature loss of primary teeth was 40% (43/109). The leading cause was caries (84%, 36/43). The tooth organ with the highest loss occurrence was the lower right second molar (33%, 14/43). Gender was identified as an associated factor, with males having a higher risk of loss (ORa = 2.97; CI95% = 1.33-6.65).  Conclusions: Our results were similar to those reported in other studies. Strategies aimed at health promotion directed at parents and children should be reinforced.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: Se considera como pérdida prematura de dientes deciduos a la exfoliación o extracción antes del recambio fisiológico con &lt; 50% o &lt; 75% de la raíz del diente sustituto formado, o si existe &gt; 1 mm de hueso alveolar cubriendo al órgano dentario sucesor permanente. El objetivo de este trabajo fue estimar la prevalencia de pérdida prematura dental en niños e identificar factores asociados en un centro de salud de Acapulco, Guerrero.  Métodos: Se llevó a cabo un estudio transversal en el que se recopiló información de 109 expedientes clínicos de niños atendidos de enero de 2019 a agosto de 2021. Se recolectaron datos sociodemográficos de los niños y los padres: nivel socioeconómico, antecedentes personales no patológicos y el antecedente de la pérdida prematura del diente deciduo. Se realizó un análisis multivariado para identificar factores asociados con la pérdida prematura de dientes deciduos con el software estadístico CIETmap. Se calcularon la razón de momios (OR) y el intervalo de confianza (IC) del 95% para estimar el grado de la asociación.  Resultados: La prevalencia de pérdida prematura de dientes primarios fue del 40% (43/109). La principal causa fue por caries (84%, 36/43). El órgano dentario con más ocurrencia de pérdida fue el segundo molar inferior derecho (33%, 14/43). Se identificó el sexo como factor asociado, y se observó que el sexo masculino presenta mayor riesgo de pérdida (ORa = 2.97; IC95% = 1.33-6.65).  Conclusiones: Nuestros resultados fueron similares a lo reportado en otros estudios. Deben reforzarse las estrategias de promoción de la salud dirigidas a los padres de familia y a sus hijos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Deciduous tooth]]></kwd>
<kwd lng="en"><![CDATA[Tooth loss]]></kwd>
<kwd lng="en"><![CDATA[Dental records]]></kwd>
<kwd lng="en"><![CDATA[Dental clinics]]></kwd>
<kwd lng="en"><![CDATA[Dental care]]></kwd>
<kwd lng="en"><![CDATA[Mexico]]></kwd>
<kwd lng="es"><![CDATA[Diente deciduo]]></kwd>
<kwd lng="es"><![CDATA[Pérdida de diente]]></kwd>
<kwd lng="es"><![CDATA[Registros dentales]]></kwd>
<kwd lng="es"><![CDATA[Clínicas dentales]]></kwd>
<kwd lng="es"><![CDATA[Atención odontológica]]></kwd>
<kwd lng="es"><![CDATA[México]]></kwd>
</kwd-group>
</article-meta>
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