<?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>1870-199X</journal-id>
<journal-title><![CDATA[Revista odontológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Odont. Mex]]></abbrev-journal-title>
<issn>1870-199X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Odontología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-199X2020000300190</article-id>
<article-id pub-id-type="doi">10.22201/fo.1870199xp.2020.24.3.80059</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio comparativo de dientes naturales e impresos en 3D a partir de tomografia volumétrica de haz cónico]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparative study of natural teeth and 3D printed teeth using a cone-beam computed tomography]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Teramoto Ohara]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ávila Carrillo]]></surname>
<given-names><![CDATA[Analaura]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Real Mejía]]></surname>
<given-names><![CDATA[María Eugenia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Tecnológica de México Departamento de Ortodoncia ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2020</year>
</pub-date>
<volume>24</volume>
<numero>3</numero>
<fpage>190</fpage>
<lpage>197</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2020000300190&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2020000300190&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2020000300190&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Objetivo: Determinar la precisión en las medidas de los dientes en vivo en comparación con los dientes impresos de los datos obtenidos de una tomografia volumétrica de haz cónico (CBCT, por sus siglas en inglés). Material y métodos: Se realizó la medición lineal de 15 órganos dentarios mesiodistal, apicoincisal y linguo-vestibular, donde fueron diagnosticados por medio de un CBCT y cuya extracción estuviera indicada en el tratamiento. Los datos de la CBCT se subieron al programa InVesalius 3, para la segmentación de los órganos y archivados para su impresión, en una impresora Envision Tech con un fotopolímero. Las medidas se ingresaron a una base de datos en el programa SPSS versión 22. En el análisis estadístico se aplicó la prueba t de Student para determinar diferencias estadísticamente significativas entre las variables. Resultados: La mediana de la medida vestíbulo-lingual con el OD natural fue de 8.07 mm, y para el OD impreso fue de 7.90 mm. La medida mesiodistal la mediana para el OD real fue de 8.03 mm y para el OD impreso fue de 7.78 mm. La mediana para la medida apicoincisal con el OD real fue de 18.95 mm, y con el OD impreso fue de 18.47 mm. Conclusiones: No hubo diferencia estadísticamente significativa que pueda repercutir en el plan de tratamiento en las mediciones del grupo de dientes reales e impresos, sin descartar la posibilidad de que una mínima variación pueda tener repercusiones clínicas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Aim: To determine the accuracy of measurements of both in vivo teeth and teeth printed with data obtained using a computed tomography (CBCT) cone-beam computed tomography (CBCT). Material and methods: For orthodontic purposes, linear measurements of 15 extracted teeth were made using a CBCT. The information obtained was recorded in the Invesalius 3 software for segmentation; then they were printed with an Envision Tech 3D printer with a polymer. All data were collected in SPSS version 22 software. To determine the statistical difference between variables, the Student t test was used. Results: median in vestibular-lingual in teeth in vivo was 8.07 mm and for 3D printed teeth was 7.90 mm. The mesio-distal median was 8.03 mm for teeth in vivo and for 3D printed teeth was 7.78 mm and for incisal-apical median was 18.95 mm to in vivo teeth and 18.47 mm to 3D printed teeth. Conclusions: there were no statistical differences between the measurements of the in vivo teeth and those of the 3D printed teeth, which could affect the treatment plans. However, these minor differences may have clinical implications.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Segmentación de dientes]]></kwd>
<kwd lng="es"><![CDATA[impresión 3D]]></kwd>
<kwd lng="es"><![CDATA[tomografía volumétrica de haz cónico]]></kwd>
<kwd lng="en"><![CDATA[Tooth segmentation]]></kwd>
<kwd lng="en"><![CDATA[3D printed]]></kwd>
<kwd lng="en"><![CDATA[cone-beam computed tomography]]></kwd>
</kwd-group>
</article-meta>
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