<?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>S1646-28902020000100023</article-id>
<article-id pub-id-type="doi">10.24873/j.rpemd.2020.07.699</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Worn ball attachments: a repair solution without replacement - a case report]]></article-title>
<article-title xml:lang="pt"><![CDATA[Attachments de bola desgastados: resolução sem substituição - caso clinico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreira]]></surname>
<given-names><![CDATA[André]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Batista]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Margues]]></surname>
<given-names><![CDATA[João]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Oliveira]]></surname>
<given-names><![CDATA[Susana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rocha]]></surname>
<given-names><![CDATA[José Mário]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Figueiral]]></surname>
<given-names><![CDATA[Maria Helena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,University of Porto Faculty of Dental Medicine Department of Prosthodontics]]></institution>
<addr-line><![CDATA[Porto ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>61</volume>
<numero>1</numero>
<fpage>23</fpage>
<lpage>28</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-28902020000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-28902020000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-28902020000100023&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Tooth-supported overdentures are an excellent solution for increasing the retention and stability of prostheses when compared to conventional removable dentures. However, with long-term use, both the Teflon cap (female part) and the male component of the attachment cemented in the abutment teeth may become worn, and replacement is needed. An 80-yearold female patient visited the department of Oral Rehabilitation of the Faculty of Dental Medicine of the University of Porto with a primary complaint of poor retention of the mandibular overdenture. Clinical examination revealed the presence of two worn ball attachments cemented on the mandibular canines. This clinical case reports a reliable solution for restoring the function of an overdenture with worn ball attachments without replacing the intraradicular post. The Concave Reconstructive Sphere System (Rhein 83R) allowed re-shaping the old ball attachments, reestablishing the overdenture&#8217;s retention and Stability.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo As sobredentaduras dento-suportadas são uma excelente solução para aumentar a retenção e a estabilidade das próteses removíveis comparativamente às próteses removíveis convencionais. No entanto, ao longo do tempo não só as cápsulas de teflon (parte fêmea), mas também o componente macho dos attachments cimentados nos dentes pilares podem deteriorar-se, necessitando substituição. Uma paciente de 80 anos compareceu no Departamento de Reabilitação Oral da Faculdade de Medicina Dentária da Universidade do Porto, afirmando que a sua sobredentadura mandibular tinha perdido a retenção. Após o exame clínico, confirmou-se que dois attachments bola cimentados sobre os caninos mandibulares se encontravam desgastados. O presente caso clínico relata uma possível solução para restabelecer a função de uma sobredentadura quando os attachments se encontram desgastados, sem haver necessidade de os substituir. O sistema Concave Reconstructive Sphere (Rhein83®) permitiu re-anatomizar os antigos attachments bola, repondo a retenção e a estabilidade da sobredentadura.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Attachment]]></kwd>
<kwd lng="en"><![CDATA[Oral rehabilitation]]></kwd>
<kwd lng="en"><![CDATA[Prosthesis]]></kwd>
<kwd lng="en"><![CDATA[Retention]]></kwd>
<kwd lng="en"><![CDATA[Tooth-supported overdenture]]></kwd>
<kwd lng="pt"><![CDATA[Attachment]]></kwd>
<kwd lng="pt"><![CDATA[Prótese]]></kwd>
<kwd lng="pt"><![CDATA[Reabilitação oral]]></kwd>
<kwd lng="pt"><![CDATA[Retenção]]></kwd>
<kwd lng="pt"><![CDATA[Sobredentadura dento-suportada]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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