<?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>1646-2890</journal-id>
<journal-title><![CDATA[Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Port Estomatol Med Dent Cir Maxilofac]]></abbrev-journal-title>
<issn>1646-2890</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Estomatologia e Medicina Dentária]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-28902025000100010</article-id>
<article-id pub-id-type="doi">10.24873/j.rpemd.2025.03.1420</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Relationship between the position of the impacted third molar and associated pathologies - A retrospective CBCT study]]></article-title>
<article-title xml:lang="pt"><![CDATA[Relação entre a posição do terceiro molar impactado e patologias associadas - Estudo retrospetivo em imagens CBCT]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Scapini]]></surname>
<given-names><![CDATA[Sofia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mesquita]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidade do Porto Faculdade de Medicina Dentária ]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2025</year>
</pub-date>
<volume>66</volume>
<numero>1</numero>
<fpage>10</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-28902025000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-28902025000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-28902025000100010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objectives:  This study aims to evaluate, through an imaging analysis, the correlation between the position of the impacted third molar and the incidence of associated pathologies. It also seeks to analyze the prevalence of these pathologies and their correlation with the sex and age of the patients.  Methods:  A total of 585 imaging exams of patients seen at a Portuguese institution of higher education in dentistry were evaluated, from which 235 impacted third molars were selected. The position and associated pathologies were analyzed individually in cone-beam computed tomography scans based on Winter&#8217;s, Pell &amp; Gregory&#8217;s and Ericson et al.&#8217;s classification using Planmeca Romexis software. The data were statistically analyzed in the Statistical Package for the Social Sciences program, using the chi-square and Fisher's exact tests.  Results:  Statistically significant differences were found between the incidence of pathology and the position of the third molar. According to Winter's classification, external root resorption was associated with the mesioangular position (p=0.001) and decreased bone density with the distoangular position (p=0.051). Based on Pell &amp; Gregory's classification, external root resorption is related to Position C (p&lt;0.001), caries to Position B (p&lt;0.001), and decreased bone density to Position B (p=0.013) and Class II (p=0.021). Age and sex influenced caries (p=0.006) and decreased bone density (p=0.065), respectively.  Conclusions:  This study concluded that there is a correlation between the position of impacted third molars and certain associated pathologies, which can be influenced by age and sex.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Objetivos:  Este estudo visa avaliar a correlação entre a posição do terceiro molar impactado e a incidência de patologias associadas através de uma análise imagiológica. Procura, igualmente, analisar a prevalência dessas patologias e a sua correlação com o sexo e a idade.  Métodos:  Foram avaliados 585 exames imagiológicos de pacientes observados numa instituição portuguesa de ensino superior de medicina dentária, de onde se selecionaram 235 terceiros molares impactados. A análise e classificação da posição e das patologias associadas foi realizada através da observação de tomografias computorizadas de feixe cónico, recorrendo às classificações de Winter, Pell &amp; Gregory e Ericson et al., utilizando o programa informático Planmeca Romexis. Os dados foram analisados no programa Statistical Package for the Social Sciences, recorrendo aos testes de qui-quadrado e exato de Fisher.  Resultados:  Detetaram-se diferenças estatisticamente significativas entre a incidência de patologia e a posição do terceiro molar. Segundo a classificação de Winter, a reabsorção radicular externa está associada à posição mesioangulada (p=0,001) e a diminuição de densidade óssea à distoangulada (p=0,051). De acordo com a classificação de Pell &amp; Gregory, a reabsorção radicular externa está relacionada com a Posição C (p&lt;0,001), a cárie com a Posição B (p&lt;0,001) e a diminuição da densidade óssea com a Posição B (p=0,013) e a Classe II (p=0,021). A idade e o sexo influenciaram a cárie (p=0,006) e a diminuição da densidade óssea (p=0,065), respetivamente.  Conclusões:  Este estudo permitiu concluir que há correlação entre a posição dos terceiros molares impactados e determinadas patologias associadas, que podem ser influenciadas pela idade e pelo sexo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cone-beam computed tomography]]></kwd>
<kwd lng="en"><![CDATA[Dental caries]]></kwd>
<kwd lng="en"><![CDATA[Odontogenic cysts]]></kwd>
<kwd lng="en"><![CDATA[Odontogenic tumors]]></kwd>
<kwd lng="en"><![CDATA[Pericoronitis]]></kwd>
<kwd lng="en"><![CDATA[Root resorption]]></kwd>
<kwd lng="en"><![CDATA[Third molar]]></kwd>
<kwd lng="pt"><![CDATA[Tomografia Computorizada de Feixe Co&#769;nico]]></kwd>
<kwd lng="pt"><![CDATA[Ca&#769;rie denta&#769;ria]]></kwd>
<kwd lng="pt"><![CDATA[Quistos odontoge&#769;nicos]]></kwd>
<kwd lng="pt"><![CDATA[Tumores odontoge&#769;nicos]]></kwd>
<kwd lng="pt"><![CDATA[Pericoronarite]]></kwd>
<kwd lng="pt"><![CDATA[Reabsorc&#807;a&#771;o radicular]]></kwd>
<kwd lng="pt"><![CDATA[Terceiro molar]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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<article-title xml:lang=""><![CDATA[What is the Most Prevalent Type of Third Molar Impaction in Patients with Pericoronitis?]]></article-title>
<source><![CDATA[World J Plast Surg]]></source>
<year>2023</year>
<volume>12</volume>
<page-range>57-63</page-range></nlm-citation>
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</article>
