<?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>2215-3411</journal-id>
<journal-title><![CDATA[Odovtos International Journal of Dental Sciences]]></journal-title>
<abbrev-journal-title><![CDATA[Odovtos]]></abbrev-journal-title>
<issn>2215-3411</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Odontología. Universidad de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2215-34112020000100113</article-id>
<article-id pub-id-type="doi">10.15517/ijds.v0i0.33223</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación radiográfica de la presencia/agenesia de terceros molares en una población infantil Mexicana]]></article-title>
<article-title xml:lang="en"><![CDATA[Radiographic Evaluation of the Presence/Agenesis of Third Molars in a Mexican Child Population]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[San Román-Hernández]]></surname>
<given-names><![CDATA[Jade Viridiana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pozos-Guillén]]></surname>
<given-names><![CDATA[Amaury]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Rider]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz-Rodríguez]]></surname>
<given-names><![CDATA[Socorro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Garrocho-Rangel]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Berber]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de San Luis Potosí Facultad de Estomatología Especialidad en Estomatología Pediátrica]]></institution>
<addr-line><![CDATA[ San Luis Potosí]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2020</year>
</pub-date>
<volume>22</volume>
<numero>1</numero>
<fpage>113</fpage>
<lpage>121</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S2215-34112020000100113&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S2215-34112020000100113&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S2215-34112020000100113&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En el ser humano, el tercer molar es el órgano dentario que más variaciones presenta durante su desarrollo embriológico, y es causa de diversas alteraciones y malestares durante su proceso de erupción. Se ha señalado que la agenesia del tercer molar tiene una prevalencia entre 9 y 37%. El objetivo del presente estudio transversal comparativo fue evaluar radiográficamente la presencia/ausencia de gérmenes de terceros molares (G3M) en pacientes pediátricos de origen mexicano. Se analizaron 513 radiografías panorámicas de pacientes que asistieron al Posgrado en Estomatología Pediátrica de la Universidad Autónoma de San Luis Potosí (México), durante los años 2011 a 2017. Se tomaron como criterios de inclusión, pacientes entre los 7 y 18 años de edad, sexo indistinto; se excluyeron pacientes con antecedentes de extracción de alguno de los terceros molares, tratamiento ortodóntico previo, enfermedades congénitas y/o síndromes asociados. Se compararon las frecuencias y prevalencias de agenesia de terceros molares, en total y por cuadrantes, comparando por sexo y grupo de edad. 245 radiografías panorámicas correspondieron al sexo femenino y 268 al masculino. La prevalencia total de agenesia del G3M fue estimada en casi 56%, y el grupo de edad de 7-8 años mostró el mayor porcentaje; sin embargo, cuando este grupo de edad se excluyó del análisis, dicha prevalencia disminuyó a 27.3%. Los cuadrantes mandibulares mostraron mayor porcentaje de agenesia. No hubo diferencia estadística significativa en la comparación por sexo. La prevalencia total de agenesia del G3M reportada en el presente estudio se encuentra muy por encima de los parámetros internacionales. Es muy posible que la falta de visualización radiográfica de agenesia de los terceros molares haya sido errónea en algunos casos debido a la ausencia frecuente de indicios de calcificación de este diente durante las edades tempranas (7-8 años). El análisis ajustado proporcionó un valor de prevalencia más acorde con los estándares reconocidos por la literatura dental.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT In the human being, third molar is the tooth that exhibits more variants during its embryologic development, usually causing diverse anomalies and discomfort when erupting to the oral cavity. It has been pointed out that the prevalence of third molar agenesis is between 9 to 37%. The aim of the present comparative cross- sectional study was to radiographically assess the presence/absence of third molar germs (G3M) in a sample of pediatric patients of Mexican origin. A total of 513 panoramic radiographs were analyzed from patients attending the Pediatric Dentistry Postgraduate Program ( San Luis Potosí University, México), during the years 2011 to 2017. Inclusion criteria were patients between 7 and 18 years old, any gender; children with antecedents of a third molar extraction, previous orthodontic treatment, or with an associated congenital or systemic condition were excluded. Total prevalence G3M agenesis was calculated. Then, statistical comparisons of agenesia proportions per dental quadrant, gender, and age group were performed. 245 panoramic radiographs corresponded to the female gender, while 268 belonged to the male gender. The total prevalence of G3M agenesia was estimated in nearly 56%, and the 7-8 years old group exhibited the highest proportion; however, when this age group was excluded from the analysis, such prevalence decreased to 27.3%. Both mandibular quadrants showed higher proportions of G3M agenesia. There were no significant differences between genders. The total prevalence reported in the present study was found to be well above regarding the international parameters. It is quite possible that lack of radiographic visualization of G3M had been inaccurate in some cases due to the common absence of calcification traces from those teeth during early ages (7-8 years old). The adjusted analysis provided a prevalence value more in line with the recognized standards in the dental literature.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Agenesia]]></kwd>
<kwd lng="es"><![CDATA[Prevalencia]]></kwd>
<kwd lng="es"><![CDATA[Tercer molar]]></kwd>
<kwd lng="en"><![CDATA[Agenesia]]></kwd>
<kwd lng="en"><![CDATA[Prevalence]]></kwd>
<kwd lng="en"><![CDATA[Third molar]]></kwd>
</kwd-group>
</article-meta>
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<name>
<surname><![CDATA[De Nova-García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Beltri-Orta]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Desarrollo y agenesia del tercer molar en una población de niños y adolescentes españoles. Estudio de la agenesia (II)]]></article-title>
<source><![CDATA[Odontol Pediatr]]></source>
<year>1994</year>
<volume>3</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>107-12</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
