<?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>0213-1285</journal-id>
<journal-title><![CDATA[Avances en Odontoestomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Av Odontoestomatol]]></abbrev-journal-title>
<issn>0213-1285</issn>
<publisher>
<publisher-name><![CDATA[Ediciones Avances, S.L.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0213-12852022000400006</article-id>
<article-id pub-id-type="doi">10.4321/s0213-12852022000400006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Periodontitis necrotizante-diagnóstico y tratamiento. Reporte de caso]]></article-title>
<article-title xml:lang="en"><![CDATA[Necrotizing periodontitis-diagnosis and treatment. Case report]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Muñoz-Rodriguez]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro-dos Santos]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jacques-Bravo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[MA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de São Paulo Facultad de Odontologia de Ribeirão Preto Programa de postgrado en Odontologia-Periodoncia]]></institution>
<addr-line><![CDATA[Ribeirão Preto ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Guarulhos University Dental Research Division ]]></institution>
<addr-line><![CDATA[São Paulo ]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Talca Facultad de Ciencias de la Salud Escuela de Odontologia, Departamento de Estomatologia]]></institution>
<addr-line><![CDATA[Talca ]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>38</volume>
<numero>4</numero>
<fpage>164</fpage>
<lpage>168</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_arttext&amp;pid=S0213-12852022000400006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_abstract&amp;pid=S0213-12852022000400006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.isciii.es/scielo.php?script=sci_pdf&amp;pid=S0213-12852022000400006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: La periodontitis necrotizante (NP) es una enfermedad inflamatoria aguda que puede aparecer de forma repentina y con rápida destrucción de los tejidos periodontales. Los hallazgos clínicos más relevantes son necrosis y úlcera en la papila interdental, sangrado gingival, dolor, destrucción ósea y, en casos severos, puede ocurrir secuestro óseo. Aunque el factor etiológico principal es la acumulación de biofilm bacteriano, los factores de riesgo como las enfermedades sistémicas y/o psicológicas podrían afectar la respuesta inmune del huésped y jugar un papel importante en el desarrollo de NP.  Objetivo: Presentar la resolución de un caso de PN con un enfoque multidisciplinario y conservador.  Presentación del caso: Paciente de sexo femenino de 22 años que fue remitida al Centro de Clínicas Odontológicas de la Universidad de Talca (Talca, Chile) con aparente estrés psicológico y fumadora. Refiere dolor intenso y persistente en los dientes anteriores con sangrado espontáneo y halitosis durante 2 semanas. El tratamiento consistió en la evaluación de la condición sistémica y el manejo de la fase aguda, la fase etiológica y posterior fase correctiva para la corrección quirúrgica de las secuelas. Este caso tiene 2 años de seguimiento con un riguroso régimen de mantenimiento periodontal, reevaluando los tejidos periodontales, motivando y reforzando la higiene bucal.  Conclusiones: Este caso clínico contribuye al diagnóstico y opciones terapéuticas que tiene el profesional ante las secuelas que se presentan en los casos de PN, que, si bien no es una patología frecuente, puede avanzar rápidamente y aumentar el daño tisular.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Necrotizing periodontitis (NP) is an acute inflammatory disease that can appear suddenly and with fast destruction of periodontal tissues. The most relevant clinical findings are necrosis and ulcer at the interdental papilla, gingival bleeding, pain, bone destruction, and, in severe cases, bone sequestrum could occur. Although the primary etiological factor is the accumulation of bacterial biofilm, risk factors like systemic and/or psychological diseases could affect the host immune response playing an important role in the development of NP.  Objective: Present the resolution of a PN case with a multidisciplinary and conservative approach.  Case presentation: A 22-year-old female patient was referred to the Dental Clinics Center of the University of Talca (Talca, Chile) with apparent psychological stress and smoker. She reports intense and persistent pain in the anterior teeth with spontaneous bleeding and halitosis for 2 weeks.The treatment consisted of the evaluation of the systemic condition and the management of the acute phase, the etiological phase, and subsequent corrective phase for the surgical correction for the sequels. This case has 2 years follow-up with a rigorous periodontal maintenance regimen, re-evaluating the periodontal tissues, motivating, and reinforcing oral hygiene.  Conclusions: This case report contributes to the diagnosis and therapeutic options that the professional has in front of the sequels that occur in cases of NP, which, although it is not a frequent pathology, can quickly worsen and increase tissue damage.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Reporte de caso]]></kwd>
<kwd lng="es"><![CDATA[diagnóstico]]></kwd>
<kwd lng="es"><![CDATA[enfermedadesperiodontalesnecrotizantes]]></kwd>
<kwd lng="es"><![CDATA[periodontitis necrosante]]></kwd>
<kwd lng="es"><![CDATA[tratamiento periodontal]]></kwd>
<kwd lng="en"><![CDATA[Case report]]></kwd>
<kwd lng="en"><![CDATA[diagnosis]]></kwd>
<kwd lng="en"><![CDATA[necrotizing periodontal diseases]]></kwd>
<kwd lng="en"><![CDATA[necrotizing periodontitis]]></kwd>
<kwd lng="en"><![CDATA[periodontal treatment]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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