<?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>S0034-75072022000300011</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Actividad antibacteriana de Plantago major, Eucalyptus globulus y Matricaria chamomilla, frente a Streptococcus mutans]]></article-title>
<article-title xml:lang="en"><![CDATA[Antibacterial actividad of Plantago Major, Eucalyptus globulus and Matricaria chamomilla against Streptococcus mutans]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carranza Villaty]]></surname>
<given-names><![CDATA[Lysanne del Carmen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Trujillo Facultad de Ciencias Médicas Departamento de Estamotología]]></institution>
<addr-line><![CDATA[Trujillo ]]></addr-line>
<country>Peru</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>59</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072022000300011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072022000300011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072022000300011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: Debido al consumo indiscriminado de fármacos, muchas bacterias han comenzado a mostrar resistencia. No obstante, cada vez hay más investigaciones que buscan soluciones a este problema, y para lograrlo indagan en los beneficios médicos de determinadas plantas sobre la cavidad oral y su menor efecto tóxico. El 10 % de las plantas a nivel mundial se usan con fines medicinales. El Instituto Nacional de Cáncer indica que el 67 % de los fármacos tiene su origen en la naturaleza, y el 25 % derivan de las plantas.  Objetivo:  Determinar el efecto inhibitorio del crecimiento in vitro de los extractos de Plantago major, Eucalyptus globulus y Matricaria chamomilla a diferentes concentraciones (100 %, 50 %, 25 % y 12,5 %) sobre cepas de Streptococcus mutans (ATCC 25175).  Métodos:  Estudio cuasiexperimental, in vitro, longitudinal y prospectivo. El universo estuvo formado por las cepas Streptococcus mutans, y la población por las cepas de Streptococcus mutans (ATCC 25175). El tamaño de la muestra se basó en el método estandarizado del CLSI. La muestra fueron 10 discos por extracto, embebidos con 50 uL., colocados sobre agar Mueller Hinton con sembrado de Streptococcus mutans (ATCC 25175). Se realizaron las medidas de los halos de inhibición a las 24 horas. Se usaron pruebas paramétricas de análisis de varianza y la prueba Tukey.  Resultados:  El halo inhibitorio promedio de la clorhexidina al 0,12 % fue de 12,76 mm (p = 0,006). El extracto de &#8220;eucalipto&#8221; al 25 % presentó diferencias significativas respecto a los otros grupos (p = 0,040), al 50 % (p = 0,002) y al 100 % (p = 0,000).  Conclusiones:  El extracto hidroalcohólico de Eucalyptus globulus al 100 % presentó efecto inhibitorio frente al Streptococcus mutans (ATCC 25175) in vitro.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Due to the indiscriminate consumption of drugs, many bacteria have begun to show resistance. However, there is more and more research that seeks solutions to this problem, and to achieve this they investigate the medical benefits of certain plants on the oral cavity and its less toxic effect. 10% of the world's plants are used for medicinal purposes. The National Cancer Institute indicates that 67% of drugs originate in nature, and 25% are derived from plants.  Objective:  Determine the inhibitory effect of in vitro growth of the extracts of Plantago major, Eucalyptus globulus and Matricaria chamomilla at different concentrations (100%, 50%, 25% and 12.5%) on strains of Streptococcus mutans (ATCC 25175).  Methods:  Quasiexperimental, in vitro, longitudinal and prospective study. The universe was formed by the strains Streptococcus mutans, and the population by the strains of Streptococcus mutans (ATCC 25175). The sample size was based on the standardized CLSI method. The sample was 10 discs per extract, embedded with 50 uL., placed on Mueller Hinton agar with Streptococcus mutans seeding (ATCC 25175). Inhibition halos measurements were performed at 24 hours. Parametric analysis of variance tests and the Tukey test were used.  Results:  The average inhibitory halo of 0.12% chlorhexidine was 12.76 mm (p = 0.006). The extract of &#8220;eucalyptus&#8221; at 25% showed significant differences with respect to the other groups (p = 0.040), 50% (p = 0.002) and 100% (p = 0.000).  Conclusions:  The hydroalcoholic extract of Eucalyptus globulus at 100% presented inhibitory effect against Streptococcus mutans (ATCC 25175) in vitro.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Plantago major]]></kwd>
<kwd lng="es"><![CDATA[Eucalyptus globulus]]></kwd>
<kwd lng="es"><![CDATA[Matricaria chamomilla]]></kwd>
<kwd lng="es"><![CDATA[Streptococcus mutans]]></kwd>
<kwd lng="es"><![CDATA[in vitro]]></kwd>
<kwd lng="en"><![CDATA[Plantago major]]></kwd>
<kwd lng="en"><![CDATA[Eucalyptus globulus]]></kwd>
<kwd lng="en"><![CDATA[Matricaria chamomilla]]></kwd>
<kwd lng="en"><![CDATA[Streptococcus mutans]]></kwd>
<kwd lng="en"><![CDATA[in vitro]]></kwd>
</kwd-group>
</article-meta>
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<article-title xml:lang=""><![CDATA[Antimicrobial efficacy of three medicinal plants Glycyrrhiza glabra, Ficus religiosa, and Plantago major on inhibiting primary plaque colonizers and periodontal pathogens: An in vitro study]]></article-title>
<source><![CDATA[Indian J Dent Sci]]></source>
<year>2016</year>
<volume>27</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>200-4</page-range></nlm-citation>
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</article>
