<?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>0034-7507</journal-id>
<journal-title><![CDATA[Revista Cubana de Estomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Estomatol]]></abbrev-journal-title>
<issn>0034-7507</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75072015000100009</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Displasia ectodérmica hereditária e hipótese de Lyon]]></article-title>
<article-title xml:lang="es"><![CDATA[Displasia ectodérmica hereditaria e hipótesis de Lyon]]></article-title>
<article-title xml:lang="en"><![CDATA[Hereditary ectodermal dysplasia and Lyon hypothesis]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machado da Costa]]></surname>
<given-names><![CDATA[Camila Helena]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[dos Anjos Pontual]]></surname>
<given-names><![CDATA[Maria Luiza]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Anjos Pontual]]></surname>
<given-names><![CDATA[Andréa dos]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villar Beltrão]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carneiro Almeida]]></surname>
<given-names><![CDATA[Manuella Santos]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Baffi Diniz]]></surname>
<given-names><![CDATA[Michele]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidade Federal de Campina Grande  ]]></institution>
<addr-line><![CDATA[Patos Paraíba]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade Federal de Pernambuco  ]]></institution>
<addr-line><![CDATA[ Pernambuco]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Universidade Federal da Paraíba  ]]></institution>
<addr-line><![CDATA[João Pessoa Paraíba]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Universidade Cruzeiro do Sul  ]]></institution>
<addr-line><![CDATA[ São Paulo]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2015</year>
</pub-date>
<volume>52</volume>
<numero>1</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072015000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072015000100009&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072015000100009&amp;lng=en&amp;nrm=iso"></self-uri><kwd-group>
<kwd lng="pt"><![CDATA[displasia ectodérmica]]></kwd>
<kwd lng="pt"><![CDATA[anodontia]]></kwd>
<kwd lng="pt"><![CDATA[genética]]></kwd>
<kwd lng="es"><![CDATA[displasia ectodérmica]]></kwd>
<kwd lng="es"><![CDATA[anodoncia]]></kwd>
<kwd lng="es"><![CDATA[genética]]></kwd>
<kwd lng="en"><![CDATA[ectodermal dysplasia]]></kwd>
<kwd lng="en"><![CDATA[anodontia]]></kwd>
<kwd lng="en"><![CDATA[genetic]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>PRESENTACI&#211;N    DE CASO</b> </font></p>     <p>&nbsp; </p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> <b><font size="4">Displasia    ectod&#233;rmica heredit&#225;ria e hip&#243;tese de Lyon</font></b> </font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> <b><font size="3">Displasia    ectod&#233;rmica hereditaria e hip&#243;tesis de Lyon</font></b> </font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="3"><b>Hereditary ectodermal    dysplasia and Lyon hypothesis</b></font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">    </font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Camila Helena    Machado da Costa,<sup>I</sup> Maria Luiza dos Anjos Pontual,<sup>II</sup> Andr&#233;a    dos Anjos Pontual,<sup>II</sup> Ricardo Villar Beltr&#227;o,<sup>III</sup> Manuella    Santos Carneiro Almeida,<sup>I</sup> Michele Baffi Diniz<sup>IV</sup></b> </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><sup>I</sup>Universidade    Federal de Campina Grande, Patos, Para&#237;ba, Brasil.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><sup>II</sup>Universidade    Federal de Pernambuco, Pernambuco, Brasil.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><sup>III</sup>Universidade    Federal da Para&#237;ba, Jo&#227;o Pessoa, Para&#237;ba, Brasil.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><sup>IV</sup>Universidade    Cruzeiro do Sul, S&#227;o Paulo, Brasil. </font></p>     <p>&nbsp; </p>     <p>&nbsp;</p> <hr noshade size="1">     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>RESUMO</b> </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Introdu&#231;&#227;o:</b>    A Displasia Ectod&#233;rmica refere-se a dist&#250;rbios que promovem displasia    ou aplasia de estruturas e tecidos derivados da ectoderme. Tal condi&#231;&#227;o    geralmente &#233; herdada por padr&#227;o recessivo com lincagem cruzada, tendo    sua frequ&#234;ncia e severidade mais pronunciada nos homens.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Objetivo:</b>    relatar o caso cl&#237;nico de Displasia Ectod&#233;rmica Heredit&#225;ria.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Relato    de caso:</b> paciente do sexo feminino TVLV, 25 anos, leucoderma, que procurou    um servi&#231;o privado de Radiologia Odontol&#243;gica no munic&#237;pio de    Jo&#227;o Pessoa, Para&#237;ba, Brasil. Foi relatado, pela paciente, que seu    pai, j&#225; falecido, era portador dessa s&#237;ndrome. Durante o exame cl&#237;nico    extrabucal, observou-se ressecamento dos l&#225;bios e olhos, escurecimento    da pele na regi&#227;o periocular, cabelos e p&#234;los finos e esparsos. A    paciente n&#227;o revelou queixa de xerostomia nem epis&#243;dios de hipertermia.    Havia perda de dimens&#227;o vertical, regi&#227;o frontal proeminente e as    unhas n&#227;o apresentavam aspectos de anormalidade. Ao exame cl&#237;nico    intrabucal, verificou-se perman&#234;ncia de 11 dentes dec&#237;duos e aus&#234;ncia    de 19 dentes permanentes. A oligodontia parcial foi ent&#227;o confirmada pelo    exame radiogr&#225;fico panor&#226;mico. A express&#227;o parcial das caracter&#237;sticas    sindr&#244;micas pode ser explicada pela Hip&#243;tese de Lyon (inativa&#231;&#227;o    do X), com metade dos cromossomos X da paciente expressando genes normais e    a outra metade os genes anormais.    ]]></body>
<body><![CDATA[<br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Conclus&#227;o:</b>    Foi recomendado aconselhamento gen&#233;tico e visitas peri&#243;dicas ao dentista.    &#201; fundamental a import&#226;ncia do cirurgi&#227;o dentista no diagn&#243;stico    desse dist&#250;rbio, inclusive nesses casos de ameniza&#231;&#227;o dos sinais    e sintomas. </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Palavras-chave:</b>    displasia ectod&#233;rmica, anodontia, gen&#233;tica.<hr noshade size="1"></font>      <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>RESUMEN</b>    </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Introducci&#243;n:</b>    la displasia ectod&#233;rmica se refiere a trastornos que promueven displasia    o aplasia en estructuras y tejidos derivados del ectodermo. Esta afecci&#243;n    generalmente se hereda con patr&#243;n recesivo lincagem cruz, llevando su frecuencia    y gravedad m&#225;s pronunciado en los hombres.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Objetivo:</b>    este trabajo tiene como objetivo presentar un caso de displasia ectod&#233;rmica    hereditaria.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Presentaci&#243;n    del caso:</b> paciente TVLV femenina, de 25 a&#241;os, leucoderma, que buscaba    un servicio de radiolog&#237;a privada en la ciudad de Jo&#227;o Pessoa, Para&#237;ba,    Brasil. Se ha informado por parte de la paciente que su padre, ya fallecido,    fue diagnosticado con este s&#237;ndrome. Durante el examen extrabucal, se observ&#243;    sequedad de los labios y los ojos, oscurecimiento de la piel en la regi&#243;n    periocular, cabello fino y escaso. La paciente no revel&#243; xerostom&#237;a    o episodios de hipertermia. No hubo p&#233;rdida de dimensi&#243;n vertical;    se observ&#243; frente prominente y u&#241;as de aspecto normal. Por examen    cl&#237;nico intraoral se constat&#243; retenci&#243;n de 11 dientes primarios    y ausencia de 19 dientes permanentes. La oligodoncia parcial fue confirmada    por el examen radiogr&#225;fico panor&#225;mico. La expresi&#243;n parcial de    las caracter&#237;sticas sindr&#243;micas se puede explicar por la hip&#243;tesis    de Lyon (inactivaci&#243;n X), con la mitad de los cromosomas X de los pacientes    que expresan genes normales y la otra mitad genes anormales.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Conclusiones:</b>    se recomienda la asesor&#237;a gen&#233;tica y las visitas regulares al dentista.    Es fundamental el diagn&#243;stico de este trastorno por el odont&#243;logo    aun en los casos de reblandecimiento de los signos y s&#237;ntomas.</font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Palabras clave</b>    <b>:</b> displasia ectod&#233;rmica, anodoncia, gen&#233;tica.<hr noshade size="1"></font>      <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>ABSTRACT</b>    </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Introduction:</b>    ectodermal dysplasia refers to disorders that promote dysplasia or aplasia structures    and tissues derived from ectoderm. This condition is usually inherited by recessive    pattern with lincagem cross, taking their frequency and severity more pronounced    in men.    ]]></body>
<body><![CDATA[<br>   <b>Objective:</b>    the aim was to report a case of Hereditary Ectodermal Dysplasia.    <br>   <b>Case report:</b>    patient TVLV female, aged 25, leucoderma, which sought a private radiology service    in the city of Jo&#227;o Pessoa, Para&#237;ba, Brazil. It was reported by the    patient, his father, now deceased, was diagnosed with this syndrome. During    the extraoral examination, there was dryness of the lips and eyes, skin darkening    in the periocular region, hair thin and sparse. The patient did not reveal xerostomia    or episodes of hyperthermia. There was loss of vertical dimension, prominent    forehead and nails were normal. The clinical examination intrabucal, there was    retention of 11 primary teeth and the absence of 19 permanent teeth. The partial    oligodontia was then confirmed by radiographic examination. The partial expression    of syndromic features can be explained by the Lyon hypothesis (X inactivation),    with half of the X chromosomes of patients expressing normal genes and half    the abnormal gene.    <br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Conclusions:</b>    it was recommended genetic counseling and regular visits to the dentist. It&#180;s    fundamental the diagnosis of this disorder for the odontologist even in the    cases of softening of signs and symptoms. </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Keywords:</b>    ectodermal dysplasia, anodontia, genetic.<hr noshade size="1"></font>      <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font size="3">INTRODU&#199;&#195;O</font></b>    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Descrita pela    primeira vez por Wedderburn em 1838, a displasia ectod&#233;rmica refere-se    a dist&#250;rbios que promovem displasia ou aplasia de estruturas e tecidos    derivados da ectoderme, como pele, cabelos, unhas, gl&#226;ndulas sudor&#237;paras    e dentes.<sup>1-3</sup> </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Essa s&#237;ndrome    &#233; considerada relativamente rara, com uma incid&#234;ncia estimada de 1    caso por 100.000.<sup>4</sup> Pode ser classificada de acordo com a produ&#231;&#227;o    de suor em duas formas: hidr&#243;tica ou s&#237;ndrome de Clouston, em que    h&#225; produ&#231;&#227;o de suor, e hipoidr&#243;tica ou s&#237;ndrome de    Christ-Siemens-Touraine, em que a produ&#231;&#227;o de suor &#233; reduzida    ou ausente.<sup>1,2,5,6</sup> </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Na forma hidr&#243;tica,    o padr&#227;o de heran&#231;a gen&#233;tica &#233; do tipo autoss&#244;mico    dominante.<sup>7</sup> Na displasia ectod&#233;rmica hipoidr&#243;tica o padr&#227;o    de heran&#231;a &#233; recessivo ligado ao cromossomo X. Os homens apresentam    express&#227;o completa da s&#237;ndrome, todavia, as mulheres heterozigotas,    portadoras do alelo recessivo, se apresentam clinicamente normais ou levemente    afetadas, fen&#244;meno explicado pela inativa&#231;&#227;o aleat&#243;ria de    um dos cromossomos X no in&#237;cio do per&#237;odo embrion&#225;rio - Hip&#243;tese    de Lyon.<sup> 5,8</sup> </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Os indiv&#237;duos    afetados pela displasia ectod&#233;rmica hipoidr&#243;tica podem exibir uma    s&#233;rie de caracter&#237;sticas cl&#237;nicas. As mais frequentes anormalidades    incluem anodontia completa ou parcial, altera&#231;&#245;es na forma dos dentes<ins cite="mailto:Maria%20Luiza%20Pontual" datetime="2013-02-20T15:55">,</ins>    cabelos escassos e finos, pele seca <ins cite="mailto:Maria%20Luiza%20Pontual" datetime="2013-02-20T15:56">,</ins>    xerostomia, unhas atr&#243;ficas ou quebradi&#231;as, bossas frontais, arcos    superciliares proeminentes, ponte nasal baixa e presen&#231;a de linhas finas    e hiperpigmenta&#231;&#227;o ao redor dos olhos.<sup>3,9-12 </sup>vale salientar    que a xerostomia deve-se &#224; aus&#234;ncia ou diminui&#231;&#227;o do n&#250;mero    de gl&#226;ndulas sudor&#237;paras e salivares. <sup>10-12</sup> </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Desta forma, no    presente trabalho se prop&#245;e relatar um caso cl&#237;nico de Displasia Ectod&#233;rmica    Heredit&#225;ria, abordando aspectos da Hip&#243;tese de Lyon e enfatizando    suas caracter&#237;sticas cl&#237;nicas e radiogr&#225;ficas, al&#233;m de discutir    as suas principais implica&#231;&#245;es. </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><ins cite="mailto:Maria%20Luiza%20Pontual" datetime="2013-02-20T16:01">    </ins></b> </font></p>     <p> <font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>RELATO DE CASO</b>    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Paciente do sexo    feminino TVLV, 25 anos, leucoderma, procurou atendimento odontol&#243;gico no    servi&#231;o privado de Radiologia Odontol&#243;gica do munic&#237;pio de Jo&#227;o    Pessoa, Para&#237;ba, Brasil, para avalia&#231;&#227;o de sua cavidade bucal,    devido &#224; aus&#234;ncia de v&#225;rios elementos dent&#225;rios. </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Durante a anamnese,    na hist&#243;ria m&#233;dica familiar, foi relatado, pela paciente, que seu    pai, j&#225; falecido, era portador da displasia ectod&#233;rmica. Durante o    exame f&#237;sico extraoral, observou-se ressecamento dos l&#225;bios e olhos,    escurecimento da pele na regi&#227;o periocular, cabelos e p&#234;los finos    e esparsos. A paciente n&#227;o revelou queixa de xerostomia nem epis&#243;dios    de hipertermia. Havia perda de dimens&#227;o vertical, regi&#227;o frontal proeminente    e as unhas n&#227;o apresentavam aspectos de anormalidade (<a href="#fig1">Figura    1</a>).</font></p>     <p align="center"><img src="/img/revistas/est/v52n1/f0109115.jpg" width="303" height="420"><a name="fig1"></a></p>     <p align="left"><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Ao    exame intraoral, constatou-se a reten&#231;&#227;o prolongada de 11 dentes dec&#237;duos    (55, 54, 53, 63, 64, 65, 74, 71, 81, 84 e 85) e presen&#231;a de apenas 13 dentes    permanentes (16, 12, 11, 21, 22, 26, 36, 35, 33, 32, 42, 43 e 46). </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Como exame complementar,    realizou-se uma radiografia panor&#226;mica, na qual foi poss&#237;vel confirmar    a oligodontia parcial (anodontia) dos 19 dentes permanentes. N&#227;o foi observado    altera&#231;&#227;o de forma nos dentes presentes <a href="#fig2">(Figura 2</a>).    </font></p>     <p align="center"><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><img src="/img/revistas/est/v52n1/f0209115.jpg" width="578" height="358"><a name="fig2"></a></font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> O teste de &#64258;uxo    salivar estimulado com parafina foi realizado na paciente, que apresentou &#64258;uxo    reduzido (0,8 mL/minuto), apesar da xerostomia n&#227;o ser uma queixa da mesma.    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Para realizar    o diagn&#243;stico da condi&#231;&#227;o apresentada pela paciente, associaram-se    as caracter&#237;sticas f&#237;sicas extra e intrabucais, exame radiogr&#225;fico    panor&#226;mico, al&#233;m da an&#225;lise das informa&#231;&#245;es obtidas    na hist&#243;ria m&#233;dico familiar. Acredita-se na hip&#243;tese de que a    altera&#231;&#227;o se manifestou na paciente, devido a apenas um gene afetado    e presente no cromossomo X, recebido de seu pai, j&#225; que o mesmo era portador    da displasia ectod&#233;rmica e sua m&#227;e n&#227;o apresentava hist&#243;rico    de aus&#234;ncia cong&#234;nita de dentes na fam&#237;lia. Desta forma, o gene    alterado do pai foi su&#64257;ciente para a manifesta&#231;&#227;o da doen&#231;a    na filha. Desta forma, chegou-se ao diagn&#243;stico de Displasia Ectod&#233;rmica    Hipoidr&#243;tica Heredit&#225;ria, onde a express&#227;o parcial das caracter&#237;sticas    sindr&#244;micas pode ser explicada pela Hip&#243;tese de Lyon (inativa&#231;&#227;o    do X), com metade dos cromossomos X da paciente expressando genes normais e    a outra metade o gene anormal.<sup> </sup>No entanto, o fato de n&#227;o haver    altera&#231;&#245;es marcantes em gl&#226;ndulas sudor&#237;paras, sup&#245;e-se    que o presente caso refere-se a um grau diferente de expressividade da doen&#231;a.    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> O diagnostico    diferencial inclui os v&#225;rios tipos desta doen&#231;a, que podem ser herdados    em qualquer um dos v&#225;rios padr&#245;es gen&#233;ticos, incluindo autoss&#244;mico    dominante, autoss&#244;mico recessivo e ligado ao cromossomo X, podendo ser    feito a partir da hist&#243;ria familiar. Desta forma, o exame completo dos    parentes da paciente &#233; recomendando, a fim de esclarecer &#224; transmiss&#227;o    gen&#233;tica neste grupo. Para ser conclusivo a cerca da forma de transmiss&#227;o    &#233; importante para que possa ser feito aconselhamento gen&#233;tico &#224;    fam&#237;lia. Com base em tais informa&#231;&#245;es, a paciente foi informada    da import&#226;ncia da realiza&#231;&#227;o de um estudo gen&#233;tico. </font></p>     <p>&nbsp; </p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font size="3">DISCUSS&#195;O</font></b>    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Durante o exame    f&#237;sico extraoral a paciente apresentou cabelos e p&#234;los finos e esparsos    e perda de dimens&#227;o vertical, j&#225; no exame intraoral foi constatado    a oligodontia parcial de v&#225;rios elementos dent&#225;rios. Desta forma,    observa-se concord&#226;ncia com os achados com um estudo realizado com crian&#231;as    portadoras de displasia ectod&#233;rmica do tipo hipoidr&#243;tica, onde foi    encontrada como caracter&#237;sticas cl&#237;nicas a retrus&#227;o maxilar com    perda de dimens&#227;o vertical, al&#233;m da presen&#231;a de sobrancelhas    finas, cabelos esparsos, c&#237;lios e anodontia de elementos dent&#225;rio.<sup>13    </sup> </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> A displasia ectod&#233;rmica    &#233; de grande import&#226;ncia cl&#237;nica para a odontologia, devido as    suas manifesta&#231;&#245;es bucais, assim, o estudo da cavidade oral &#233;    fundamental para o diagn&#243;stico desta s&#237;ndrome e a caracter&#237;stica    considerada indispens&#225;vel &#233; a aus&#234;ncia de dentes.<sup> </sup>Desta    forma, os achados do presente caso est&#225; de acordo com outros estudos<sup>14,15</sup>    que confirmam a rela&#231;&#227;o entre as manifesta&#231;&#245;es bucais e    o diagn&#243;stico da displasia ectod&#233;rmica. </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> No presente estudo,    a reabilita&#231;&#227;o oral da paciente n&#227;o foi necess&#225;ria devido    &#224; reten&#231;&#227;o prolongada dos elementos dec&#237;duos, compensando,    assim, a anodontia dos germes dos dentes permanentes. Entretanto, h&#225; casos    em que &#233; necess&#225;ria uma reabilita&#231;&#227;o prot&#233;tica pela    anodontia total ou parcial.<sup>3,6,15</sup> Portanto, em muitos casos a reabilita&#231;&#227;o    precoce &#233; importante. Para tanto s&#227;o necess&#225;rios tratamento ortod&#244;ntico,    prot&#233;tico e at&#233; coloca&#231;&#227;o de implantes dent&#225;rios. Estes    &#250;ltimos s&#227;o sugeridos como a modalidade de reconstru&#231;&#227;o,    instalando a autoconfian&#231;a, est&#233;tica facial e fun&#231;&#227;o mastigat&#243;ria.<sup>6,12,14</sup>    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> No presente caso,    o tratamento consistiu na instru&#231;&#227;o de higiene oral e aplica&#231;&#227;o    t&#243;pica de fl&#250;or, pois o fluxo salivar apresentou-se reduzido, sendo    um poss&#237;vel fator predisponente ao desenvolvimento de les&#245;es de c&#225;rie.    Vale salientar que a paciente n&#227;o apresentava les&#245;es de c&#225;rie    na cavidade bucal, ademais, possu&#237;a uma boa higiene bucal, n&#227;o despertando    grandes preocupa&#231;&#245;es, sendo, portanto, implementadas apenas as medidas    convencionais de promo&#231;&#227;o e preven&#231;&#227;o de sa&#250;de. </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> O tratamento deve    ser adequado &#224;s necessidades do paciente, sem tratamento espec&#237;fico    para a doen&#231;a. Deve-se monitorar os sinais cl&#237;nicos e supervisionar    a denti&#231;&#227;o. No entanto, alguns procedimentos cosm&#233;ticos podem    melhorar a apar&#234;ncia do paciente.<sup>4,8</sup> No presente caso, o progn&#243;stico    da paciente &#233; bom, desde que os cuidados com a manuten&#231;&#227;o preventiva    da sa&#250;de f&#237;sica e bucal sejam mantidos. </font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Contudo, nem sempre    o cirurgi&#227;o-dentista encontra-se preparado para realizar um diagn&#243;stico    correto, com consequente tratamento adequado. No caso dos odontopediatras, al&#233;m    do diagn&#243;stico e tratamento dos pacientes com a displasia ectod&#233;rmica,    ele pode contribuir para a melhora da autoestima e conv&#237;vio social dessas    crian&#231;as. </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Manifesta&#231;&#245;es    cl&#237;nicas da displasia ectod&#233;rmica causam diversos problemas de ordem    social e psicol&#243;gica aos indiv&#237;duos afetados.<sup>6</sup> &#201; recomendado    que o portador de displasia receba acompanhamento multidisciplinar, envolvendo    diversos pro&#64257;ssionais como m&#233;dicos (geneticista, dermatologista),    cirurgi&#245;es-dentistas, fonoaudi&#243;logos e psic&#243;logos no intuito    de melhorar as condi&#231;&#245;es f&#237;sicas, est&#233;ticas e funcionais,    tamb&#233;m, restabelecer o estado emocional do paciente e permitir a reintegra&#231;&#227;o    ao conv&#237;vio social. </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Muitas vezes o    paciente e seus familiares, n&#227;o sabem lidar adequadamente com os comprometimentos    f&#237;sicos decorrentes, nesses casos, a atua&#231;&#227;o de uma equipe de    profissionais &#233; de extrema import&#226;ncia para o sucesso do tratamento.    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> A Displasia ectod&#233;rmica    &#233; uma doen&#231;a heredit&#225;ria que apresenta altera&#231;&#245;es em    estruturas origin&#225;rias do ectoderma. As mais frequentes anormalidades incluem    hipoplasia ou aplasia de alguns tecidos, como pele, cabelos, unhas ou gl&#226;ndulas    e anodontia completa ou parcial dos elementos dent&#225;rios, esses achados    s&#227;o comprovados diante do exame f&#237;sico extra e intraoral e radiogr&#225;fico.    As caracter&#237;sticas mais marcantes s&#227;o expressas no sexo masculino,    que apresentam express&#227;o completa da s&#237;ndrome, todavia, as mulheres    heterozigotas, portadoras do alelo recessivo, se apresentam levemente afetadas,    Hip&#243;tese de Lyon. </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> Assim, a avalia&#231;&#227;o    e plano de tratamento dos portadores da displasia ectod&#233;rmica devem estar    relacionados diretamente as suas diversas manifesta&#231;&#245;es cl&#237;nicas.<b>    </b>A amplitude de sinais cl&#237;nicos justifica a inter-rela&#231;&#227;o    com todos os profissionais envolvidos na &#225;rea da sa&#250;de, com o prop&#243;sito    de resgatar a autoestima e possibilitar um melhor conv&#237;vio social nesses    indiv&#237;duos.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b><font size="3">REFER&#202;NCIAS    BILIOGR&#193;FICAS</font></b> </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">1. Weech AA. Hereditary    ectodermal dysplasia (congenital ectodermal defect). American Journal of Diseases    of Children. 1929;37:766-90.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 2. Solomon LM,    Keuer EJ. The ectodermal dysplasias. Problems of classification and some newer    syndromes. Archives of Dermatology. 1980;116:1295-99.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 3. Kumar K, Shetty    DC, Dua M, Dua A, Dhanapal R. An Insight into the Genesis of Hypohidrotic Ectodermal    Dysplasia in a Case Report. Case Reports in Dentistry. 2012;2012:1-4.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 4. Chen L, Zhao    Y, Wei Y, Wang Y, Zhang Y, Wang Y, et al. Prenatal diagnosis of anhidrotic ectodermal    dysplasia with unconventional loci abnormalities: a case report. Chin Med J.    2012;125:3177-9.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 5. Shi XL, Du    HC, Zhang XL. Prenatal diagnosis in an X-linked hypohidrotic ectodermal dysplasia    family. Chin J Birth Health Heredity (Chin). 2010;18:106-7.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 6. Anuroopa A,    Abdulla J, Lovely M. Oral rehabilitation of a young patient with hypohidrotic    ectodermal dysplasia: A clinical report. Contemp Clin Dent. 2012;3:33-6.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 7. Fabian FM,    Lembariti BS, Gesease AP. Hidrotic ectodermal dysplasia in a 40 year old female    patient. JIPS. 2006;6:154-6.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 8. Sidhu M, Kale    AD, Kotrashetti VS. Karyotyping, dermatoglyphic, and sweat pore analysis of    five families affected with ectodermal dysplasia. J Oral Maxillofac Pathol.    2012;16:380-7.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 9. Freiman A,    Borsuk D, Barankin B, Sperber GH, Krafchik B. Dental manifestations of dermatologic    conditions. J Am Acad Dermatol. 2009;60:289-98.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 10. Mikkola ML.    Molecular aspects of hypohidrotic ectodermal dysplasia. American Journal of    Medical Genetics A. 2009;149:2031-6.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 11. Bansal M,    Manchanda K, Pandey SS. Hypohidrotic ectodermal dysplasia. Int J Trichol. 2012;4:167-8.        </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 12. Hekmatfar    S, Jafari K, Meshki R, Badakhsh S. Dental Management of Ectodermal Dysplasia:    Two Clinical Case Reports. J Dent Res Dent Clin Dent Prospect. 2012;6:108-12.        </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 13. Vierucci S,    Baccetti T, Tollaro I. Dental and craniofacial findings in hypohidrotic ectodermal    dysplasia during the primary dentition phase. The Journal of Clinical Pediatric    Dentistry. 1994;18:291-7.     </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 14. Bulut E, Guler    AU, Sen Tunc E, Telcioglu NT. Oral rehabilitation with endosseous implants in    a child with ectodermal dysplasia: a case report. Eur J Paediatr Dent. 2010;11:149-52.        </font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"> 15. Pae A, Kim    K, Kim HS, Kwon KR. Over denture restoration in growing patient with hypohidrotic    Ectodermal dysplasia. A clinical report. Quintessence Int. 2011;42:235-8.     </font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Recibido: 6 de    mayo de 2013.    ]]></body>
<body><![CDATA[<br>   </font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Aprobado:    12 de agosto de 2014.</font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Autor correspondente:    <i>Camila Helena Machado da Costa.</i> Unidade Acad&#234;mica de Ci&#234;ncias    Biol&#243;gicas, Universidade Federal de Campina Grande, Patos, Para&#237;ba,    Brasil. Rua: Maria Eunice Fernandes, 118, Mana&#237;ra, Jo&#227;o Pessoa-PB,    CEP 58038-480, tel. (83) 88362309. <a href="mailto:camila_helena_@hotmail.com">camila_helena_@hotmail.com</a>    </font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><br clear="all"/>   <br/>   </font></p>      ]]></body><back>
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