<?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>S1870-199X2010000100021</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio comparativo de filtración microbiana coronal con tres diferentes materiales de restauración provisional en dientes obturados con Guttaflow]]></article-title>
<article-title xml:lang="en"><![CDATA[Comparative study of microbial coronal filtration in three restoration provisional materials in filled teeth with Guttaflow]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Gorozpe]]></surname>
<given-names><![CDATA[Claudia Ivett]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jácome Musule]]></surname>
<given-names><![CDATA[José Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perea Mejía]]></surname>
<given-names><![CDATA[Luis Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,UNAM División de Estudios de Postgrado e Investigación Facultad de Odontología]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,UNAM Facultad de Odontología División de Estudios de Postgrado e Investigación]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,UNAM Facultad de Medicina Departamento de Salud Pública]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2010</year>
</pub-date>
<volume>14</volume>
<numero>1</numero>
<fpage>21</fpage>
<lpage>31</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2010000100021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2010000100021&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2010000100021&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Estudio "ex-vivo" que evalúa la filtración microbiana coronal con tres materiales de restauración provisional IRM (Denstply), Vitremer (3M ESPE) y Resina Z350 (3M ESPE) en dientes obturados con Guttaflow durante tres meses de exposición con Enterococcus faecalis. Se utilizaron 86 dientes unirradiculares extraídos de humanos. Instrumentados con sistema K3 VTVT, irrigados con NaOCl al 2.5, Smear Clear al 17%, gluconato de clorhexidina al 2%. Los primeros dientes en presentar ennegrecimiento obturados con Guttaflow sin material provisional (25%) fueron al día 6, 17, 47, 61 a la exposición a Enterococcus faecalis. Los primeros dientes en presentar ennegrecimiento con material provisional de IRM (10%) fueron al día 6 y 83. El grupo de Vitremer no presentó filtración en el primer mes. Los primeros dientes en presentar ennegrecimiento con material provisional de Vitremer (35%) fueron al día 33, 34, 55, 80, 84, 88 de la exposición a Enterococcus faecalis. De los materiales provisionales el que menos filtró fue la resina Z350 (100%) en donde ninguna muestra presentó ennegrecimiento (filtración bacteriana). El material Guttaflow cuando no se coloca un sellado coronal presenta filtración a la semana, lo que sin duda lleva a concluir que es necesaria la colocación de un material de restauración provisional para prevenir la contaminación bacteriana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: An "ex-vivo" study is presented, which evaluates microbial coronal filtration in restoration provisional materials IRM (Denstply), Vitremer (3M ESPE) and resin Z350 (3M ESPE) in filled teeth with Guttaflow during three months of exposure with Enterococcus faecalis. Eighty six extracted single rooted human teeth were used. And they were instrumentated with the system K3 VTVT, and irrigated with NaOCl to 2.5, Clear Smear 17% chlorhexidine gluconate 2%. The first teeth sealed with Guttaflow without provisional material (25%) submitted blackening on Day 6, 17, 47, 61 from exposure to Enterococcus faecalis. The first teeth sealed with provisional material IRM (10%) submitted blackening on day 6 and 83. The group of Vitremer did not present filtration in the first month. The first teeth sealed with provisional material Vitremer (35%) submitted blackening on day 33, 34, 55, 80, 84, 88 of exposure to Enterococcus faecalis. In the provisional materials, Z350 Resin (100%) did not evidence blackening (bacterial filtration). The Guttaflow material presents filtration after a week and it is concluded that it is necessary to place a temporary restoration material to prevent bacterial contamination.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Restauración provisional]]></kwd>
<kwd lng="es"><![CDATA[filtración coronal]]></kwd>
<kwd lng="es"><![CDATA[Enterococcus faecalis]]></kwd>
<kwd lng="en"><![CDATA[Provisional restoration]]></kwd>
<kwd lng="en"><![CDATA[coronal filtration]]></kwd>
<kwd lng="en"><![CDATA[Enterococcus faecalis]]></kwd>
</kwd-group>
</article-meta>
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