<?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>0301-696X</journal-id>
<journal-title><![CDATA[Revista de sanidad militar]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. sanid. mil.]]></abbrev-journal-title>
<issn>0301-696X</issn>
<publisher>
<publisher-name><![CDATA[Secretaría de la Defensa Nacional, Dirección General de Sanidad]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0301-696X2024000100001</article-id>
<article-id pub-id-type="doi">10.56443/yxm82p58</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comparación In vitro de la eficacia antibacteriana de dos medicaciones intraconducto hidróxido de calcio y quitosano]]></article-title>
<article-title xml:lang="en"><![CDATA[In Vitro comparison of the antibacterial efficacy of two intracanal medications calcium hydroxide and chitosan]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bello-Márquez]]></surname>
<given-names><![CDATA[Ocaydi]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Secretaría de la Defensa Nacional Escuela Militar de Graduados de Sanidad ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2024</year>
</pub-date>
<volume>78</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0301-696X2024000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0301-696X2024000100001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0301-696X2024000100001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Objetivo: Determinar cuál de estas medicaciones intraconductos (hidróxido de calcio, quitosano e hidróxido de calcio+quitosano), muestra más efecto antibacteriano en la sensibilidad de la bacteria Enterococcus faecalis.  Metodología: Se realizó un estudio in vitro por la técnica de susceptibilidad antimicrobiana aplicando el método macrodilución con el objeto de establecer si una concentración de los compuestos tres grupos: Grupo 1: hidróxido de calcio. Grupo 2: quitosano. Grupo 3: hidróxido de calcio+quitosano posee actividad antibacteriana ante la bacteria Enterococcus faecalis y para apoyar esta prueba se realizó la técnica antibiograma por medición de halos de inhibición con el objetivo de determinar la sensibilidad de Enterococcus faecalis a las medicaciones intraconducto hidróxido de calcio y quitosano.  Resultados: Existen diferencias estadísticamente significativas en las medicaciones intraconducto de hidróxido de calcio, quitosano e hidróxido de calcio+quitosano frente a la bacteria E. faecalis, mostrando mejor resultado cuando se utiliza el quitosano solo, en la unidad formadora de colonias y en la técnica de antibiograma por halos de inhibición mostro mejores resultados.  Limitaciones: No se presentó alguna limitación durante el presente estudio.  Valor: No se ha realizado un estudio similar en la Escuela Militar de Graduados de Sanidad.  Conclusiones: El quitosano es efectivo contra Enterococcus faecalis, puede reducir significativamente la cantidad de bacterias en una dilución baja de 100 mg/ml, por lo tanto podemos concluir que el quitosano es un candidato prometedor como agente antibacteriano biocompatible alternativo y puede utilizarse como medicación intraconducto a futuro en tratamientos de conductos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objective: Determine which of these intracanal medications (calcium hydroxide, chitosan, and calcium hydroxide+chitosan), shows more antibacterial effect on the sensitivity of Enterococcus faecalis bacterium.  Methodology: An in vitro study was carried out using the antimicrobial susceptibility technique applying the microdilution method in order to establish whether a concentration of the compounds was in three groups: Cluster 1: calcium hydroxide. Cluster 2: Chitosan. Cluster 3: calcium hydroxide + chitosan has antibacterial activity against the Enterococcus faecalis bacterium and to support this test, the antibiogram technique was performed by measuring inhibition halos to determine the sensitivity of E. faecalis to intracanal medications calcium hydroxide and chitosan.  Results: There are statistically significant differences in the intracanal medications of calcium hydroxide, chitosan, and calcium hydroxide+chitosan against the bacterium Enterococcus faecalis, showing better results when chitosan is used alone, in the colony-forming unit and in the antibiogram technique for inhibition halos showed better results.  Limitations: Due to the shortage of Ketamine in hospital units, it is difficult to replicate the study in larger samples.  Value: A similar study has not been carried out at the Escuela Militar de Graduados de Sanidad.  Conclusions: Chitosan is effective against E. faecalis, it can significantly reduce the number of bacteria at a low dilution of 100 mg/ml, therefore we can conclude that chitosan is a promising candidate for an alternative biocompatible antibacterial agent and can be used as a intracanal medication in root canal treatments.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[chitosan]]></kwd>
<kwd lng="en"><![CDATA[antibacterial]]></kwd>
<kwd lng="en"><![CDATA[sensitivity]]></kwd>
<kwd lng="en"><![CDATA[Enterococcus faecalise]]></kwd>
<kwd lng="es"><![CDATA[quitosano]]></kwd>
<kwd lng="es"><![CDATA[antibacteriana]]></kwd>
<kwd lng="es"><![CDATA[sensibilidad]]></kwd>
<kwd lng="es"><![CDATA[Enterococcus faecalis]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Microbiology of endodontic infections]]></article-title>
<source><![CDATA[Journal of Dental and Oral Health]]></source>
<year>2016</year>
<volume>2</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>2-4</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodríguez-Niklitschek]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Oporto]]></surname>
<given-names><![CDATA[V G H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Clinical implications of Enterococcus faecalis microbial contamination in root canals of devitalized teeth: Literature review]]></article-title>
<source><![CDATA[Revista Odontolo&#769;gica Mexicana]]></source>
<year>2015</year>
<volume>19</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>181-6</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiménez Rojas]]></surname>
<given-names><![CDATA[LF]]></given-names>
</name>
<name>
<surname><![CDATA[Juárez]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Rodriguez Ferrerira Alves]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Penetration and Diffusion Capacity of Intra-duct Medication in Dentinal Tubules, Lateral Canals and Isthmus. A Systematic Review]]></article-title>
<source><![CDATA[Int. J. Odontostomant]]></source>
<year>2021</year>
<volume>15</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>727-33</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cicciù]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fiorillo]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Cervino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Use of chitosan in dentistry: a systematic review of recent clinical studies]]></article-title>
<source><![CDATA[Marine Drugs]]></source>
<year>2019</year>
<volume>17</volume>
<numero>417</numero>
<issue>417</issue>
<page-range>2-14</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kishen]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Shi]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Shrestha]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Neoh]]></surname>
<given-names><![CDATA[KG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[An investigation on the antibacterial and antibiofilm efficacy of cationic nanoparticles for root canal disinfection]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2008</year>
<volume>34</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1515-20</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parolia]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
<name>
<surname><![CDATA[Ramamurthy]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Davamani]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Pau]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effectiveness of chitosan nanoparticles, propolis against enterococcus faecalis biofilms in the root canal]]></article-title>
<source><![CDATA[BMC Oral Health]]></source>
<year>2020</year>
<volume>20</volume>
<numero>339</numero>
<issue>339</issue>
<page-range>2-14</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Savitha]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[SriRekha]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Vijay]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Champa]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Jaykumar]]></surname>
<given-names><![CDATA[T]]></given-names>
</name>
</person-group>
<collab>Ashwija</collab>
<article-title xml:lang=""><![CDATA[An in vivo comparative evaluation of the antimicrobial efficacy of chitosan, chlorhexidine gluconate gel, and their combination as an intracanal drug against enterococcus faecalis in failed endodontic cases using real-time polymerase chain reaction]]></article-title>
<source><![CDATA[Rev. Dental Saudí]]></source>
<year>2019</year>
<volume>31</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>360-6</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bedran]]></surname>
<given-names><![CDATA[NR]]></given-names>
</name>
<name>
<surname><![CDATA[Nadelman]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Magno]]></surname>
<given-names><![CDATA[MB]]></given-names>
</name>
<name>
<surname><![CDATA[de Almeida Neves]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
<name>
<surname><![CDATA[Braga Pintor]]></surname>
<given-names><![CDATA[AV]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Does Calcium Hydroxide Reduce Endotoxins in Infected Root Canals? Systematic Review and Meta-analysis]]></article-title>
<source><![CDATA[J Endo]]></source>
<year>2020</year>
<volume>46</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1545-58</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Ji]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Zhu]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Wu]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Mei]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antibacterial effect of chitosan and its derivative on Enterococcus faecalis associated with endodontic infection]]></article-title>
<source><![CDATA[Exp Ther Med]]></source>
<year>2020</year>
<volume>19</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>3805-13</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Supotngarmkul]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Panichuttra]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Ratisoontorn]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
<name>
<surname><![CDATA[Nawachinda]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Matangkasombut]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antibacterial property of chitosan against E. faecalis standard strain and clinical isolates]]></article-title>
<source><![CDATA[Dent Mater J]]></source>
<year>2020</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>456-63</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>11</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Del Carpio-Perochena]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Kishen]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Felitti]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bhagirath]]></surname>
<given-names><![CDATA[AY]]></given-names>
</name>
<name>
<surname><![CDATA[Medapati]]></surname>
<given-names><![CDATA[MR]]></given-names>
</name>
<name>
<surname><![CDATA[Lai]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antibacterial Properties of Chitosan Nanoparticles and Propolis Associated with Calcium Hydroxide against Single- and Multispecies Biofilms: An In Vitro and In Situ Study]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2017</year>
<volume>43</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1332-6</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>12</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ballal]]></surname>
<given-names><![CDATA[NV]]></given-names>
</name>
<name>
<surname><![CDATA[Shavi]]></surname>
<given-names><![CDATA[GV]]></given-names>
</name>
<name>
<surname><![CDATA[Kumar]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Kundabala]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Bhat]]></surname>
<given-names><![CDATA[KS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[In vitro sustained release of calcium ions and pH maintenance from different vehicles containing calcium hydroxide]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2010</year>
<volume>36</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>862-6</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
