<?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>0120-971X</journal-id>
<journal-title><![CDATA[CES Odontología]]></journal-title>
<abbrev-journal-title><![CDATA[CES odontol.]]></abbrev-journal-title>
<issn>0120-971X</issn>
<publisher>
<publisher-name><![CDATA[Universidad CES - Facultad de Odontología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-971X2022000100047</article-id>
<article-id pub-id-type="doi">10.21615/cesodon.6508</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Endodontic reintervention of a mandibular second premolar with four root canals: a case report]]></article-title>
<article-title xml:lang="es"><![CDATA[Reintervención endodóntica de un segundo premolar mandibular con cuatro conductos radiculares: reporte de caso]]></article-title>
<article-title xml:lang="pt"><![CDATA[Reintervenção endodôntica de um segundo pré-molar mandibular com quatro condutos radiculares: relato de caso]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreira-Pinto]]></surname>
<given-names><![CDATA[Larissa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Peixoto-de-Araújo]]></surname>
<given-names><![CDATA[Lucas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto-Carpena]]></surname>
<given-names><![CDATA[Lucas]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[de-Souza-Ferreira]]></surname>
<given-names><![CDATA[Nádia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rolim-de-Sousa]]></surname>
<given-names><![CDATA[Ezilmara Leonor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Pelotas (UFPEL)  ]]></institution>
<addr-line><![CDATA[Pelotas, RS ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,State University of Campinas  ]]></institution>
<addr-line><![CDATA[Piracicaba, SP ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Federal University of Pelotas (UFPEL)  ]]></institution>
<addr-line><![CDATA[Pelotas, RS ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Federal University of Pelotas (UFPEL)  ]]></institution>
<addr-line><![CDATA[Pelotas, RS ]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Federal University of Pelotas (UFPEL)  ]]></institution>
<addr-line><![CDATA[Pelotas, RS ]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2022</year>
</pub-date>
<volume>35</volume>
<numero>1</numero>
<fpage>47</fpage>
<lpage>59</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-971X2022000100047&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-971X2022000100047&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-971X2022000100047&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Complex anatomical variations on root canals morphology are one of the most arduous challenges in the endodontic practice. The objective of this case report is to discuss the clinical management of a mandibular left second premolar with four root canals and four distinct apical foramina. This case report has been written according to Preferred Reporting Items for Case reports in Endodontics (PRICE) 2020 guidelines. A 74-year-old patient was referred to retreat a left mandibular second premolar. The patient complained of discomfort when chewing hard food. After obtaining consent from the patient to investigate the symptoms, a thorough clinical and radiographic examination was performed. The main clinical findings observed were a moderate sensitivity to vertical percussion and mild discomfort at palpation. The periapical radiograph showed a fusion-like root with multiple canals and unsatisfactory root canal fillings associated with apical radiolucency. Based on this investigation, a diagnostic of persistent apical periodontitis was made to the tooth, and nonsurgical root canal re-treatment was proposed to the patient. After written informed consent was obtained, the procedure was performed under magnification provided by a dental operating microscope with the aid of ultrasonic tips. During the access opening and fillings removal, four root canal orifices were observed. Therefore, state-of-the-art technology such as the dental operating microscope, ultrasonics, and cone-bean computed tomography image are strong allies to manage anatomical variations.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Las complejas variaciones anatómicas en la morfología de los conductos radiculares son uno de los desafíos más arduos en la práctica de la endodoncia. El objetivo de este reporte de caso es discutir el manejo clínico de un segundo premolar mandibular izquierdo con cuatro conductos radiculares y cuatro agujeros apicales distintos. Este informe de caso se ha escrito de acuerdo con Preferred Reporting Items for Case reports in Endodontics (PRICE) 2020. Paciente de 74 años que fue remitido para retirada de un segundo premolar mandibular izquierdo. El paciente se quejaba de malestar al masticar alimentos duros. Después de obtener el consentimiento del paciente para investigar los síntomas, se realizó un examen clínico y radiográfico completo. Los principales hallazgos clínicos observados fueron una sensibilidad moderada a la percusión vertical y una leve molestia a la palpación. La radiografía periapical mostró una raíz similar a una fusión con múltiples conductos y empastes de conductos radiculares insatisfactorios asociados con radiolucidez apical. Con base en esta investigación, se realizó un diagnóstico de periodontitis apical persistente en el diente y se propuso al paciente un nuevo tratamiento del conducto radicular no quirúrgico. Una vez obtenido el consentimiento informado por escrito, el procedimiento se realizó con un aumento proporcionado por un microscopio quirúrgico dental con la ayuda de puntas ultrasónicas. Durante la apertura del acceso y la remoción de los empastes, se observaron cuatro orificios del conducto radicular. Por lo tanto, la tecnología de punta, como el microscopio de operación dental, los ultrasonidos y la imagen de tomografía computarizada de haz cónico, son fuertes aliados para manejar las variaciones anatómicas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Variações anatômicas complexas na morfologia dos canais radiculares são um dos desafios mais árduos na prática endodôntica. O objetivo deste relato de caso é discutir o manejo clínico de um segundo pré-molar inferior esquerdo com quatro canais radiculares e quatro forames apicais distintos. Este relato de caso foi escrito de acordo com as diretrizes do Preferred Reporting Items for Case reports in Endodontics (PRICE) 2020. Um paciente de 74 anos foi encaminhado para retirada de um segundo pré-molar inferior esquerdo. O paciente queixou-se de desconforto ao mastigar alimentos duros. Após obter o consentimento do paciente para investigar os sintomas, foi realizado um exame clínico e radiográfico completo. Os principais achados clínicos observados foram sensibilidade moderada à percussão vertical e leve desconforto à palpação. A radiografia periapical mostrou uma raiz fusionada com múltiplos canais e obturações de canais radiculares insatisfatórias associadas à radioluscência apical. Com base nesta investigação, um diagnóstico de periodontite apical persistente foi feito ao dente, e um retratamento não cirúrgico do canal radicular foi proposto ao paciente. Após a obtenção do termo de consentimento livre e esclarecido, o procedimento foi realizado sob magnificação fornecida por microscópio cirúrgico odontológico com auxílio de pontas de ultrassom. Durante a abertura do acesso e retirada das obturações, foram observados quatro orifícios do canal radicular. Portanto, tecnologia de ponta, como microscópio cirúrgico odontológico, ultrassom e imagem de tomografia computadorizada de feixes cônico, são fortes aliados para o gerenciamento de variações anatômicas.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[premolares]]></kwd>
<kwd lng="es"><![CDATA[endodoncia]]></kwd>
<kwd lng="es"><![CDATA[variación anatómica]]></kwd>
<kwd lng="es"><![CDATA[reporte de casos.]]></kwd>
<kwd lng="en"><![CDATA[premolars]]></kwd>
<kwd lng="en"><![CDATA[endodontics]]></kwd>
<kwd lng="en"><![CDATA[anatomic variation]]></kwd>
<kwd lng="en"><![CDATA[case reports.]]></kwd>
<kwd lng="pt"><![CDATA[pré-molares]]></kwd>
<kwd lng="pt"><![CDATA[endodontia]]></kwd>
<kwd lng="pt"><![CDATA[variação anatômica]]></kwd>
<kwd lng="pt"><![CDATA[relatos de casos.]]></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[Vertucci]]></surname>
<given-names><![CDATA[FJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root canal morphology and its relationship to endodontic procedures]]></article-title>
<source><![CDATA[Endod Top]]></source>
<year>2005</year>
<volume>10</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>3-29</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[Costa]]></surname>
<given-names><![CDATA[FFNP]]></given-names>
</name>
<name>
<surname><![CDATA[Pacheco-Yanes]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Siqueira]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[ACS]]></given-names>
</name>
<name>
<surname><![CDATA[Gazzaneo]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Amorim]]></surname>
<given-names><![CDATA[CA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Association between missed canals and apical periodontitis]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2019</year>
<volume>52</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>400-6</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[Restrepo-Restrepo]]></surname>
<given-names><![CDATA[FA]]></given-names>
</name>
<name>
<surname><![CDATA[Cañas-Jiménez]]></surname>
<given-names><![CDATA[SJ]]></given-names>
</name>
<name>
<surname><![CDATA[Romero-Albarracín]]></surname>
<given-names><![CDATA[RD]]></given-names>
</name>
<name>
<surname><![CDATA[Villa-Machado]]></surname>
<given-names><![CDATA[PA]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Cano]]></surname>
<given-names><![CDATA[MI]]></given-names>
</name>
<name>
<surname><![CDATA[Tobón-Arroyave]]></surname>
<given-names><![CDATA[SI]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Prognosis of root canal treatment in teeth with preoperative apical periodontitis: a study with cone-beam computed tomography and digital periapical radiography]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2019</year>
<volume>52</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1533-46</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[Khalighinejad]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Aminoshariae]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Kulild]]></surname>
<given-names><![CDATA[JC]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[KA]]></given-names>
</name>
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Mickel]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Effect of the Dental Operating Microscope on the Outcome of Nonsurgical Root Canal Treatment: A Retrospective Case-control Study]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2017</year>
<volume>43</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>728-32</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[Song]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[HC]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[W]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of the cause of failure in nonsurgical endodontic treatment by microscopic inspection during endodontic microsurgery]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2011</year>
<volume>37</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>1516-9</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[Siqueira Junior]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
<name>
<surname><![CDATA[Rocas I das]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Marceliano-Alves]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Perez]]></surname>
<given-names><![CDATA[AR]]></given-names>
</name>
<name>
<surname><![CDATA[Ricucci]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Unprepared root canal surface areas: causes, clinical implications, and therapeutic strategies]]></article-title>
<source><![CDATA[Braz Oral Res]]></source>
<year>2018</year>
<volume>32</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>2-19</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[Bram]]></surname>
<given-names><![CDATA[SM]]></given-names>
</name>
<name>
<surname><![CDATA[Fleisher]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endodontic therapy in a mandibular second biscupid with four canals]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>1991</year>
<volume>17</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>513-5</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[Al-Fouzan]]></surname>
<given-names><![CDATA[KS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The microscopic diagnosis and treatment of a mandibular second premolar with four canals]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2001</year>
<volume>34</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>406-10</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[Rhodes]]></surname>
<given-names><![CDATA[JS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A case of unusual anatomy: A mandibular second premolar with four canals]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2001</year>
<volume>34</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>645-8</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[Holtzman]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root canal treatment of mandivular second premolar with four root canals: A case report]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>1998</year>
<volume>31</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>364-6</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[Tzanetakis]]></surname>
<given-names><![CDATA[GN]]></given-names>
</name>
<name>
<surname><![CDATA[Lagoudakos]]></surname>
<given-names><![CDATA[TA]]></given-names>
</name>
<name>
<surname><![CDATA[Kontakiotis]]></surname>
<given-names><![CDATA[EG]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endodontic Treatment of a Mandibular Second Premolar with Four Canals Using Operating Microscope]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2007</year>
<volume>33</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>318-21</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[Sachdeva]]></surname>
<given-names><![CDATA[GS]]></given-names>
</name>
<name>
<surname><![CDATA[Ballal]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Gopikrishna]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Kandaswamy]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Endodontic Management of a Mandibular Second Premolar with Four Roots and Four Root Canals with the Aid of Spiral Computed Tomography: A Case Report]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2008</year>
<volume>34</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>104-7</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Akyuz]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Erdemir]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mandibular second premolar with four roots]]></article-title>
<source><![CDATA[Eur J Gen Dent]]></source>
<year>2012</year>
<volume>1</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>54</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Al-Abdulwahhab]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Al-Nazhan]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Root canal treatment of mandibular second premolar with four root canals]]></article-title>
<source><![CDATA[Saudi Endod J]]></source>
<year>2015</year>
<volume>5</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>196-8</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wong]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Four root canals in a mandibular second premolar]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>1991</year>
<volume>17</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>125-6</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>16</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Macri]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Zmener]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Five canals in a mandibular second premolar]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2000</year>
<volume>26</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>304-5</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>17</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cleghorn]]></surname>
<given-names><![CDATA[BM]]></given-names>
</name>
<name>
<surname><![CDATA[Christie]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[CCS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Root and Root Canal Morphology of the Human Mandibular Second Premolar: A Literature Review]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2007</year>
<volume>33</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1031-7</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>18</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nagendrababu]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Chong]]></surname>
<given-names><![CDATA[BS]]></given-names>
</name>
<name>
<surname><![CDATA[McCabe]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Shah]]></surname>
<given-names><![CDATA[PK]]></given-names>
</name>
<name>
<surname><![CDATA[Priya]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Jayaraman]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[PRICE 2020 guidelines for reporting case reports in Endodontics: explanation and elaboration]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2020</year>
<volume>53</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>922-47</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>19</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ather]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Ruparel]]></surname>
<given-names><![CDATA[NB]]></given-names>
</name>
<name>
<surname><![CDATA[Diogenes]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Hargreaves]]></surname>
<given-names><![CDATA[KM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Coronavirus Disease 19 (COVID-19): Implications for Clinical Dental Care]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2020</year>
<volume>46</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>584-95</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>20</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cleghorn]]></surname>
<given-names><![CDATA[BM]]></given-names>
</name>
<name>
<surname><![CDATA[Christie]]></surname>
<given-names><![CDATA[WH]]></given-names>
</name>
<name>
<surname><![CDATA[Dong]]></surname>
<given-names><![CDATA[CCS]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The Root and Root Canal Morphology of the Human Mandibular First Premolar: A Literature Review]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2007</year>
<volume>33</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>509-16</page-range></nlm-citation>
</ref>
<ref id="B21">
<label>21</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ahmed]]></surname>
<given-names><![CDATA[HMA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Application of a new system for classifying root and canal anatomy in clinical practice - Explanation and elaboration]]></article-title>
<source><![CDATA[Eur Endod J]]></source>
<year>2021</year>
<volume>6</volume>
<numero>13</numero>
<issue>13</issue>
<page-range>132-42</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>22</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Coelho De Carvalho]]></surname>
<given-names><![CDATA[MC]]></given-names>
</name>
<name>
<surname><![CDATA[Zuolo]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Orifice locating with a microscope]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2000</year>
<volume>26</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>532-4</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>23</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Plotino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Pameijer]]></surname>
<given-names><![CDATA[CH]]></given-names>
</name>
<name>
<surname><![CDATA[Maria Grande]]></surname>
<given-names><![CDATA[N]]></given-names>
</name>
<name>
<surname><![CDATA[Somma]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasonics in Endodontics: A Review of the Literature]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2007</year>
<volume>33</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>81-95</page-range></nlm-citation>
</ref>
<ref id="B24">
<label>24</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Silveira]]></surname>
<given-names><![CDATA[SB]]></given-names>
</name>
<name>
<surname><![CDATA[Alves]]></surname>
<given-names><![CDATA[FRF]]></given-names>
</name>
<name>
<surname><![CDATA[Marceliano-Alves]]></surname>
<given-names><![CDATA[MF]]></given-names>
</name>
<name>
<surname><![CDATA[Sousa]]></surname>
<given-names><![CDATA[JCN]]></given-names>
</name>
<name>
<surname><![CDATA[Vieira]]></surname>
<given-names><![CDATA[VTL]]></given-names>
</name>
<name>
<surname><![CDATA[Siqueira]]></surname>
<given-names><![CDATA[JF]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Removal of Root Canal Fillings in Curved Canals Using Either Mani GPR or HyFlex NT Followed by Passive Ultrasonic Irrigation]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2018</year>
<volume>44</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>299-303</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>25</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Plotino]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Nagendrababu]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Bukiet]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Grande]]></surname>
<given-names><![CDATA[NM]]></given-names>
</name>
<name>
<surname><![CDATA[Veettil]]></surname>
<given-names><![CDATA[SK]]></given-names>
</name>
<name>
<surname><![CDATA[De-Deus]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of Negotiation, Glide Path, and Preflaring Procedures on Root Canal Shaping-Terminology, Basic Concepts, and a Systematic Review]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2020</year>
<volume>46</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>707-29</page-range></nlm-citation>
</ref>
<ref id="B26">
<label>26</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De-Deus]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Cardoso]]></surname>
<given-names><![CDATA[ML]]></given-names>
</name>
<name>
<surname><![CDATA[Simões-Carvalho]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[EJNL]]></given-names>
</name>
<name>
<surname><![CDATA[Belladonna]]></surname>
<given-names><![CDATA[FG]]></given-names>
</name>
<name>
<surname><![CDATA[Cavalcante]]></surname>
<given-names><![CDATA[DM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Glide Path with Reciprocating Driven Pathfinding Instrument: Performance and Fracture Rate]]></article-title>
<source><![CDATA[J Endod]]></source>
<year>2021</year>
<volume>47</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>100-4</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>27</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[De-Deus]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Arruda]]></surname>
<given-names><![CDATA[TEP]]></given-names>
</name>
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[EM]]></given-names>
</name>
<name>
<surname><![CDATA[Neves]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Magalhães]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Thuanne]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The ability of the Reciproc R25 instrument to reach the full root canal working length without a glide path]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2013</year>
<volume>46</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>993-8</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>28</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rodrigues]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[De-Deus]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Souza]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Silva]]></surname>
<given-names><![CDATA[EJNL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Safe Mechanical Preparation with Reciprocation Movement without Glide Path Creation: Result from a Pool of 673 Root Canals]]></article-title>
<source><![CDATA[Braz Dent J]]></source>
<year>2016</year>
<volume>27</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>22-7</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>29</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Patel]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Brown]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Semper]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Abella]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
<name>
<surname><![CDATA[Mannocci]]></surname>
<given-names><![CDATA[F]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[European Society of Endodontology position statement: Use of cone beam computed tomography in Endodontics: European Society of Endodontology (ESE) developed]]></article-title>
<source><![CDATA[by: Int Endod J]]></source>
<year>2019</year>
<volume>52</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>1675-8</page-range></nlm-citation>
</ref>
<ref id="B30">
<label>30</label><nlm-citation citation-type="journal">
<collab>American Association of Oral and Maxillofacial Radiology</collab>
<collab>American Association of Endodontics</collab>
<article-title xml:lang=""><![CDATA[Use of cone beam computed tomography in endodontics 2015 update]]></article-title>
<source><![CDATA[Oral Surg Oral Med Oral Pathol Oral Radiol]]></source>
<year>2015</year>
<volume>120</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>508-12</page-range></nlm-citation>
</ref>
<ref id="B31">
<label>31</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Löst]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Quality guidelines for endodontic treatment: Consensus report of the European Society of Endodontology]]></article-title>
<source><![CDATA[Int Endod J]]></source>
<year>2006</year>
<volume>39</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>921-30</page-range></nlm-citation>
</ref>
<ref id="B32">
<label>32</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carvalho]]></surname>
<given-names><![CDATA[TA]]></given-names>
</name>
<name>
<surname><![CDATA[Boschiero]]></surname>
<given-names><![CDATA[MN]]></given-names>
</name>
<name>
<surname><![CDATA[Marson]]></surname>
<given-names><![CDATA[FAL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[COVID-19 in Brazil: 150,000 deaths and the Brazilian underreporting]]></article-title>
<source><![CDATA[Diagn Microbiol Infect Dis]]></source>
<year>2021</year>
<volume>99</volume>
<numero>3</numero>
<issue>3</issue>
</nlm-citation>
</ref>
<ref id="B33">
<label>33</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nash]]></surname>
<given-names><![CDATA[DA]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ethics in dentistry: review and critique of Principles of Ethics and Code of Professional Conduct]]></article-title>
<source><![CDATA[J Am Dent Assoc]]></source>
<year>1984</year>
<volume>109</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>597-603</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
