<?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>S0034-75072019000300005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Acción antibacteriana in vitro de dentífricos sin flúor frente a cepas de Streptococcus mutans]]></article-title>
<article-title xml:lang="en"><![CDATA[In vitro antibacterial activity of fluoride-free toothpastes against Streptococcus mutans strains]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sanchez Ballena]]></surname>
<given-names><![CDATA[Sally Thressy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Elías Podestá]]></surname>
<given-names><![CDATA[Mario César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arellano Sacramento]]></surname>
<given-names><![CDATA[César]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diéguez Pérez]]></surname>
<given-names><![CDATA[Montserrat]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Inca Garcilaso de la Vega Lima ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Continental  ]]></institution>
<addr-line><![CDATA[Huancayo ]]></addr-line>
<country>Perú</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Norbert Wiener  ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Perú</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Complutense de Madrid Universidad Europea de Madrid ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Spain</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2019</year>
</pub-date>
<volume>56</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072019000300005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072019000300005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072019000300005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  Los dentífricos con ingredientes activos previenen la caries dental en niños.  Objetivo:  Determinar la actividad antibacteriana in vitro de tres dentífricos sin flúor y dos soluciones control frente a cepas estándares de Streptococccus mutans.  Métodos:  Se realizó un estudio transversal, prospectivo y experimental a doble ciego. Se utilizó agar tripticasa de soya con el método de difusión a 37 °C durante 24 h. Se observó el tamaño de los halos de crecimiento inhibitorio en cada grupo. El análisis de los datos se realizó con el software SPSS15, mediante pruebas estadísticas de corroboración de distribución gaussiana de Shapiro-Wilk, prueba de Kruskal-Wallis y de Mann-Whitney.  Resultados:  El diámetro de inhibición en gluconato de clorhexidina al 0,12 % fue de 26,69 mm (± 1,85), en el agua destilada de 6 mm (± 0) y para las pastas dentífricas de 6 mm (± 0) y 22,93 mm (± 3,39). Al comparar los diámetros obtenidos por la acción del gluconato de clorhexidina 0,12 % y del agua destilada con los dentífricos libre de flúor, sólo en uno de los casos se obtuvieron diferencias estadísticamente significativas (p&lt; 0,05).  Conclusiones: No todos los dentífricos para la higiene bucal del bebé estudiados presentan actividad antibacteriana frente a la cepa de Streptococcus mutans ATCC 25175.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Toothpastes with active ingredients prevent dental caries in children.  Objective:  Determine the in vitro antibacterial activity of three fluoride-free toothpastes and two control solutions against standard Streptococccus mutans strains.  Methods:  A prospective cross-sectional experimental double-blind study was conducted. Trypticase soy agar was used applying the diffusion method at 37 °C for 24 h. The size of the growth inhibition haloes of each group was examined. Data analysis was based on SPSS15 software, using Shapiro-Wilk Gaussian distribution corroboration statistical tests, and the Kruskal-Wallis and Mann-Whitney tests.  Results:  Inhibition diameter was 26.69 mm (± 1.85) for 0.12 % chlorhexidine gluconate, 6 mm (± 0) for distilled water, and 6 mm (± 0) and 22.93 mm (± 3.39) for the toothpastes. Comparison of the diameters obtained by the action of 0.12 % chlorhexidine gluconate and distilled water with the fluoride-free toothpastes revealed statistically significant differences in only one of the cases (p&lt; 0.05).  Conclusions: Not all the baby toothpastes studied display antibacterial activity against the Streptococcus mutans strain ATCC 25175.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[dentífricos]]></kwd>
<kwd lng="es"><![CDATA[agentes antibacteriales]]></kwd>
<kwd lng="es"><![CDATA[Streptococcus mutans]]></kwd>
<kwd lng="en"><![CDATA[toothpastes]]></kwd>
<kwd lng="en"><![CDATA[antibacterial agents]]></kwd>
<kwd lng="en"><![CDATA[Streptococcus mutans]]></kwd>
</kwd-group>
</article-meta>
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