<?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>1981-8637</journal-id>
<journal-title><![CDATA[RGO.Revista Gaúcha de Odontologia (Online)]]></journal-title>
<abbrev-journal-title><![CDATA[RGO, Rev. gaúch. odontol. (Online)]]></abbrev-journal-title>
<issn>1981-8637</issn>
<publisher>
<publisher-name><![CDATA[Mundi Brasil Gráfica e Editora Ltda.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1981-86372011000100020</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Odontodisplasia regional: relato de caso em maxila com transpasse de linha média]]></article-title>
<article-title xml:lang="en"><![CDATA[Regional odontodysplasia: case report in maxilla crossing the midline]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carreira]]></surname>
<given-names><![CDATA[Aline Semblano Dias]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bastos]]></surname>
<given-names><![CDATA[Renata Travassos da Rosa Moreira]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kataoka]]></surname>
<given-names><![CDATA[Maria Sueli da Silva]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinheiro]]></surname>
<given-names><![CDATA[Maria das Graças Rodrigues]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinheiro]]></surname>
<given-names><![CDATA[Lucas Rodrigues]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinheiro]]></surname>
<given-names><![CDATA[João de Jesus Viana]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidade Federal do Pará Faculdade de Odontologia ]]></institution>
<addr-line><![CDATA[Belém PA]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Centro Universitário do Pará  ]]></institution>
<addr-line><![CDATA[Belém PA]]></addr-line>
<country>Brasil</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2011</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2011</year>
</pub-date>
<volume>59</volume>
<numero>1</numero>
<fpage>135</fpage>
<lpage>139</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&amp;pid=S1981-86372011000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_abstract&amp;pid=S1981-86372011000100020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_pdf&amp;pid=S1981-86372011000100020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Odontodisplasia regional é uma afecção rara, não-hereditária, a qual afeta o desenvolvimento do esmalte e dentina na dentição decídua e/ou permanente. A etiologia ainda é desconhecida. Em geral, esta condição é diagnosticada durante exames radiográficos de rotina e muitos casos são diagnosticados erroneamente como dentes malformados ou odontomas. Esta condição afeta duas vezes mais o sexo feminino do que o masculino e envolve com mais frequência à maxila do que a mandíbula. Esta afecção é também mencionada como "dentes fantasmas", uma vez que os dentes afetados, radiograficamente, não apresentam distinção dos limites entre o esmalte e a dentina; e a câmara pulpar se apresenta alargada. Clinicamente os dentes são vistos com uma coloração castanha ou amarelada. O presente trabalho apresenta um caso clínico de odontodisplasia regional, não usual, que cruza a linha média da maxila, em uma criança do sexo feminino de quatro anos de idade. Todos os dentes decíduos e permanentes superiores do lado esquerdo eram displásicos, assim como também os incisivos centrais, decíduo e permanente do lado direito.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Regional odontodysplasia is a rare, nonhereditary condition that affects the development of the enamel and dentin of the deciduous and/or permanent teeth. The etiology is still unknown. In general, this condition is diagnosed during routine radiographic assessments and many cases are mistaken for malformed teeth or odontomas. This condition affects twice as many females as males and is more common in the maxilla than the jaw. This condition is also called "ghost teeth" because the enamel-dentine border of the affected teeth cannot be distinguished in the radiograph and the pulp chambers are wide. Clinically, the teeth are brownish or yellowish. The present study reports an unusual case of maxillary regional odontodysplasia crossing the midline in a 4-year-old female. All deciduous and permanent teeth in the left side of the maxilla and the central incisors in the right side of the maxilla were dysplastic.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Anormalidades dentárias]]></kwd>
<kwd lng="pt"><![CDATA[Anormalidades congênitas]]></kwd>
<kwd lng="pt"><![CDATA[Odontodisplasia]]></kwd>
<kwd lng="en"><![CDATA[Tooth abnormalities]]></kwd>
<kwd lng="en"><![CDATA[Congenital abnormalities]]></kwd>
<kwd lng="en"><![CDATA[Odontodysplasia]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2" face="Verdana"><b>CL&Iacute;NICO</b> CLINICAL</font></p>     <p>&nbsp;</p>     <p><font size="4" face="Verdana"><b><a name="tx"></a>Odontodisplasia regional: relato de caso em maxila com transpasse de linha m&eacute;dia</b></font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>Regional odontodysplasia: case report in maxilla crossing the midline</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"><b>Aline Semblano Dias Carreira<Sup>I,</Sup><a href="#nt"><sup>*</sup></a>; Renata Travassos da Rosa Moreira Bastos<Sup>I</Sup>; Maria Sueli da Silva Kataoka<Sup>I</Sup>; Maria das Gra&ccedil;as Rodrigues Pinheiro<Sup>II</Sup>; Lucas Rodrigues Pinheiro<Sup>II</Sup>; Jo&atilde;o de Jesus Viana Pinheiro<Sup>I</Sup></b></font></p>     <p><font size="2" face="Verdana"><Sup>I</Sup>Universidade Federal do Par&aacute;, Faculdade de Odontologia. Rua Augusto Corr&ecirc;a, 1, <I>Campus</I> Universit&aacute;rio do Guam&aacute;, Guam&aacute;, 66075&#45;900, Bel&eacute;m, PA, Brasil    <br>   <Sup>II</Sup>Centro Universit&aacute;rio do Par&aacute;, Curso de Odontologia. Bel&eacute;m, PA, Brasil</font></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p>&nbsp;</p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>RESUMO</b></font></p>     <p><font size="2" face="Verdana">Odontodisplasia regional &eacute; uma afec&ccedil;&atilde;o rara, n&atilde;o&#45;heredit&aacute;ria, a qual afeta o desenvolvimento do esmalte e dentina na denti&ccedil;&atilde;o dec&iacute;dua e/ou permanente. A etiologia ainda &eacute; desconhecida. Em geral, esta condi&ccedil;&atilde;o &eacute; diagnosticada durante exames radiogr&aacute;ficos de rotina e muitos casos s&atilde;o diagnosticados erroneamente como dentes malformados ou odontomas. Esta condi&ccedil;&atilde;o afeta duas vezes mais o sexo feminino do que o masculino e envolve com mais frequ&ecirc;ncia &agrave; maxila do que a mand&iacute;bula. Esta afec&ccedil;&atilde;o &eacute; tamb&eacute;m mencionada como "dentes fantasmas", uma vez que os dentes afetados, radiograficamente, n&atilde;o apresentam distin&ccedil;&atilde;o dos limites entre o esmalte e a dentina; e a c&acirc;mara pulpar se apresenta alargada. Clinicamente os dentes s&atilde;o vistos com uma colora&ccedil;&atilde;o castanha ou amarelada. O presente trabalho apresenta um caso cl&iacute;nico de odontodisplasia regional, n&atilde;o usual, que cruza a linha m&eacute;dia da maxila, em uma crian&ccedil;a do sexo feminino de quatro anos de idade. Todos os dentes dec&iacute;duos e permanentes superiores do lado esquerdo eram displ&aacute;sicos, assim como tamb&eacute;m os incisivos centrais, dec&iacute;duo e permanente do lado direito. </font></p>     <p><font size="2" face="Verdana"><b>Termos de indexa&ccedil;&atilde;o: </b> Anormalidades dent&aacute;rias. Anormalidades cong&ecirc;nitas. Odontodisplasia.</font></p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>ABSTRACT</b></font></p>     <p><font size="2" face="Verdana">Regional odontodysplasia is a rare, nonhereditary condition that affects the development of the enamel and dentin of the deciduous and/or permanent teeth. The etiology is still unknown. In general, this condition is diagnosed during routine radiographic assessments and many cases are mistaken for malformed teeth or odontomas. This condition affects twice as many females as males and is more common in the maxilla than the jaw. This condition is also called "ghost teeth" because the enamel&#45;dentine border of the affected teeth cannot be distinguished in the radiograph and the pulp chambers are wide. Clinically, the teeth are brownish or yellowish. The present study reports an unusual case of maxillary regional odontodysplasia crossing the midline in a 4&#45;year&#45;old female. All deciduous and permanent teeth in the left side of the maxilla and the central incisors in the right side of the maxilla were dysplastic. </font></p>     <p><font size="2" face="Verdana"><b>Indexing terms: </b> Tooth abnormalities. Congenital abnormalities. Odontodysplasia.</font></p> <hr size="1" noshade>     <p>&nbsp;</p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p><font size="3" face="Verdana"><b>INTRODU&Ccedil;&Atilde;O</b></font></p>     <p><font size="2" face="Verdana"> A primeira descri&ccedil;&atilde;o de odontodisplasia regional foi feita, provavelmente, por Hitchin em 1934&sup1;. A odontodisplasia regional &eacute; uma anomalia, n&atilde;o&#45;heredit&aacute;ria, que afeta o desenvolvimento do esmalte e dentina da denti&ccedil;&atilde;o dec&iacute;dua e/ou permanente<Sup>2&#45;13</Sup>.</font></p>     <p><font size="2" face="Verdana">Manifesta&#45;se durante a irrup&ccedil;&atilde;o dos dentes dec&iacute;duos ou durante a denti&ccedil;&atilde;o mista<Sup>3,7,14</Sup>. &Eacute; mais comum no sexo feminino e n&atilde;o h&aacute; tend&ecirc;ncia de ocorr&ecirc;ncia em um grupo &eacute;tnico espec&iacute;fico<Sup>2,7,10,13&#45;15,17</Sup>. Esta condi&ccedil;&atilde;o envolve apenas um &uacute;nico quadrante e a maxila &eacute; mais frequentemente afetada que a mand&iacute;bula<Sup>7,13&#45;15</Sup>, sendo vari&aacute;vel o n&uacute;mero de dentes afetados<Sup>10,18</Sup>.</font></p>     <p><font size="2" face="Verdana">A etiologia da odontodisplasia regional ainda n&atilde;o foi esclarecida, e como referida anteriormente, a condi&ccedil;&atilde;o n&atilde;o &eacute; heredit&aacute;ria e isto sugere um ou mais fatores locais afetando a forma&ccedil;&atilde;o dos tecidos dent&aacute;rios durante o desenvolvimento<Sup>13,15&#45;16,19</Sup>. Na literatura, v&aacute;rias causas t&ecirc;m sido sugeridas como as desordens circulat&oacute;rias locais, infec&ccedil;&otilde;es, drogas teratrog&ecirc;nicas, traumas, v&iacute;rus latente no germe dent&aacute;rio, dist&uacute;rbios metab&oacute;licos e muta&ccedil;&otilde;es som&aacute;ticas, por&eacute;m nenhuma teoria &eacute; capaz de explicar esta anormalidade<Sup>7&#45;8,13,15&#45;16</Sup>.</font></p>     <p><font size="2" face="Verdana">Clinicamente, os dentes afetados apresentam&#45;se manchados, com colora&ccedil;&atilde;o castanha ou amarelada, hipocalcificados e hipopl&aacute;sicos<Sup>4,13,15,20&#45;21,</Sup>. Por apresentarem uma estrutura defeituosa, esses dentes geralmente s&atilde;o pequenos e mais suscept&iacute;veis &agrave; c&aacute;rie dental<Sup>12&#45;13,15,22</Sup>. A crista alveolar na regi&atilde;o afetada em geral se apresenta aumentada e coberta por um tecido fibroso<Sup>10,23</Sup>. A irrup&ccedil;&atilde;o dos dentes pode ser retardada ou n&atilde;o ocorrer<Sup>3,13,15,24</Sup>. Outros sintomas incluem o edema gengival, gengivite e alguns pacientes podem relatar dor e abscesso na &aacute;rea afetada, em decorr&ecirc;ncia do acesso bacteriano &agrave; polpa atrav&eacute;s de trincas no esmalte e da dentina defeituosa<Sup>6,20</Sup>.</font></p>     <p><font size="2" face="Verdana">Radiograficamente, o dente afetado apresenta um contorno t&ecirc;nue criando a apar&ecirc;ncia de dente fantasma devido &agrave; reduzida radiodensidade das finas camadas de esmalte e dentina<Sup>3,5,12&#45;16</Sup>. A demarca&ccedil;&atilde;o entre o esmalte e a dentina &eacute; pouco vis&iacute;vel, as c&acirc;maras pulpares e os canais radiculares s&atilde;o alargados e podem ocorrer ra&iacute;zes curtas e com &aacute;pices abertos<Sup>3,5,12&#45;15</Sup>. A c&acirc;mara pulpar &eacute; grande apresentando, ocasionalmente, polpa volumosa<Sup>12,21&#45;22</Sup>. Frequentemente, calcifica&ccedil;&otilde;es pulpares s&atilde;o identificadas na polpa coron&aacute;ria e les&otilde;es periapicais cr&ocirc;nicas ou agudas podem se desenvolver em associa&ccedil;&atilde;o com os dentes afetados<Sup>7&#45;8,12</Sup>.</font></p>     <p><font size="2" face="Verdana">Histologicamente, o esmalte se apresenta com densidade vari&aacute;vel e superf&iacute;cie irregular<Sup>7,12</Sup>. H&aacute; uma redu&ccedil;&atilde;o na dentina, alargamento da camada de pr&eacute;&#45;dentina, grandes &aacute;reas de dentina interglobular e um padr&atilde;o tubular irregular da dentina<Sup>12&#45;13,25&#45;26</Sup>. Frequentemente, nota&#45;se necrose pulpar como resultado da comunica&ccedil;&atilde;o com a cavidade oral atrav&eacute;s das trincas na camada de dentina<Sup>27</Sup>. O epit&eacute;lio reduzido do esmalte, ao redor dos dentes n&atilde;o irrompidos, apresenta corpos calcificados irregulares<Sup>3,21,25&#45;26.</Sup>.</font></p>     <p><font size="2" face="Verdana">Caracter&iacute;sticas cl&iacute;nicas e radiogr&aacute;ficas da odontodisplasia regional ser&atilde;o apresentadas neste artigo, descrevendo um caso raro dessa afec&ccedil;&atilde;o com transpasse de linha m&eacute;dia.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>CASO CL&Iacute;NICO</b></font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">A paciente RF, quatro anos de idade, sem hist&oacute;ria m&eacute;dica relevante, ao exame extra&#45;oral n&atilde;o apresentou assimetria facial ou qualquer outra anormalidade vis&iacute;vel.  De acordo com o relato da m&atilde;e, as altera&ccedil;&otilde;es nos dentes foram observadas logo ap&oacute;s a irrup&ccedil;&atilde;o, sendo estas confirmadas radiograficamente. </font></p>     <p><font size="2" face="Verdana">No arco superior direito, verificou&#45;se que os dentes dec&iacute;duos 51, 61, 62, 63, 64 estavam semi&#45;irrompidos e com colora&ccedil;&atilde;o amarelada ou castanha, o que tamb&eacute;m foi observado no dente 65 que j&aacute; se encontra irrompido. A espessura da gengiva nesta regi&atilde;o encontrava&#45;se aumentada. A denti&ccedil;&atilde;o dec&iacute;dua do arco inferior estava completa e todos os dentes presentes estavam, clinicamente, normais (<a href="#fig01">Figura 1</a>).</font></p>     <p><a name="fig01"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas//rgo/v59n1/a20fig01.jpg"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana">Ao exame radiogr&aacute;fico (radiografia panor&acirc;mica), observou&#45;se que a denti&ccedil;&atilde;o do arco inferior encontrava&#45;se dentro dos par&acirc;metros de normalidade, assim como os dentes do arco superior do lado direito, com exce&ccedil;&atilde;o do dente 51. Notou&#45;se que os dentes dec&iacute;duos (51, 61, 62, 63, 64, 65) e os germes dos permanentes (11, 21, 22, 23, 24, 25, 26) apresentavam aumento da sua densidade radiogr&aacute;fica, caracterizando assim a m&aacute; forma&ccedil;&atilde;o dos tecidos mineralizados dos referidos dentes (<a href="#fig02">Figura 2</a>). Os dentes afetados apresentavam um contorno radiopaco fino, sem distin&ccedil;&atilde;o do limite entre o esmalte e a dentina. Al&eacute;m disso, as c&acirc;maras pulpares desses dentes eram amplas sugerindo a apar&ecirc;ncia de "dentes fantasmas" (<a href="#fig03">Figura 3</a>).</font></p>     <p><a name="fig02"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas//rgo/v59n1/a20fig02.jpg"></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><a name="fig03"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas//rgo/v59n1/a20fig03.jpg"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana">Visando a manuten&ccedil;&atilde;o de espa&ccedil;o, mastiga&ccedil;&atilde;o, fona&ccedil;&atilde;o e melhora est&eacute;tica da paciente foi confeccionada uma pr&oacute;tese parcial remov&iacute;vel tempor&aacute;ria em acr&iacute;lico.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>DISCUSS&Atilde;O</b></font></p>     <p><font size="2" face="Verdana">A odontodisplasia regional &eacute; uma anormalidade espor&aacute;dica de desenvolvimento localizado, o envolvimento de mais de um quadrante &eacute; raro, assim como o transpasse da linha mediana<Sup>13</Sup>,o qual foi evidenciado no presente estudo. Uma revis&atilde;o da idade na &eacute;poca do diagn&oacute;stico revela um pico bimodal que se correlaciona com o tempo normal de erup&ccedil;&atilde;o das denti&ccedil;&otilde;es dec&iacute;dua e permanente<Sup>12</Sup>. Segundo Crawford &amp; Alfred<Sup>7</Sup>, a maxila &eacute; mais frequentemente afetada que a mand&iacute;bula, sendo o lado esquerdo envolvido com maior frequ&ecirc;ncia, o que foi observado no presente caso cl&iacute;nico, por&eacute;m tal fato ainda n&atilde;o est&aacute; esclarecido na literatura. Por ordem decrescente segue&#45;se o lado direito da maxila, lado direito da mand&iacute;bula e por fim o lado esquerdo da mand&iacute;bula. Em geral, os incisivos centrais, laterais e os caninos s&atilde;o os dentes mais comumente afetados<Sup>13&#45;14,18,24</Sup>. Quando os dentes dec&iacute;duos s&atilde;o afetados, o mesmo geralmente acontece com os permanentes que o sucedem<Sup>12</Sup>, dados tamb&eacute;m coincidentes com nossos achados. A etiologia da odontodisplasia regional ainda &eacute; desconhecida<Sup>13,15&#45;16,19</Sup> e no presente caso a crian&ccedil;a n&atilde;o possu&iacute;a hist&oacute;ria m&eacute;dica relevante, que pudesse estar associada &agrave; ocorr&ecirc;ncia desta afec&ccedil;&atilde;o.</font></p>     <p><font size="2" face="Verdana">V&aacute;rios outros termos podem ser utilizados para mencionar esta condi&ccedil;&atilde;o como "dentes fantasmas", odontog&ecirc;nese imperfeita, displasia odontog&ecirc;nica, amelog&ecirc;nese imperfeita em segmento n&atilde;o heredit&aacute;ria, malforma&ccedil;&atilde;o dent&aacute;ria unilateral<Sup>3,9</Sup>. Acredita&#45;se que odontodisplasia regional seja o termo mais apropriado, devido &agrave; condi&ccedil;&atilde;o afetar v&aacute;rios dentes adjacentes no mesmo segmento do osso<Sup>3&#45;4,9</Sup>. </font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Os casos de odontodisplasia regional s&atilde;o diagnosticados pela combina&ccedil;&atilde;o de caracter&iacute;sticas cl&iacute;nicas e radiogr&aacute;ficas<Sup>9,13,15,20</Sup>. Condi&ccedil;&otilde;es como displasia dentin&aacute;ria, amelog&ecirc;nese e dentinog&ecirc;nese imperfeita mostram semelhan&ccedil;as com a odontodisplasia regional, por&eacute;m estas afetam toda a denti&ccedil;&atilde;o e n&atilde;o apenas um &uacute;nico segmento<Sup>7</Sup>. Muitos casos de odontodisplasia regional s&atilde;o diagnosticados erroneamente como dentes malformados ou odontomas<Sup>2,5,27&#45;28</Sup>.</font></p>     <p><font size="2" face="Verdana">O tratamento da odontodisplasia regional &eacute; controverso e nenhum consenso tem sido alcan&ccedil;ado<Sup>10,16</Sup>. O cirurgi&atilde;o&#45;dentista deve levar em considera&ccedil;&atilde;o a idade do paciente, a hist&oacute;ria m&eacute;dica, o n&uacute;mero de dentes afetados, a presen&ccedil;a ou aus&ecirc;ncia de alguma doen&ccedil;a, assim como a atitude e os desejos do paciente<Sup>10,13</Sup>. O objetivo do tratamento inclui medidas que visam corrigir a mastiga&ccedil;&atilde;o e fona&ccedil;&atilde;o, promover crescimento e desenvolvimento normais e redu&ccedil;&atilde;o dos impactos emocionais e se poss&iacute;vel, proteger algum dente irrompido afetado<Sup>10,13,16</Sup>. Alguns profissionais optam em extrair os dentes afetados e reabilitar o paciente com uma pr&oacute;tese parcial remov&iacute;vel tempor&aacute;ria em acr&iacute;lico<Sup>2&#45;3,5,10,14&#45;16,18,24,28&#45;29</Sup>. </font></p>     <p><font size="2" face="Verdana">A reabilita&ccedil;&atilde;o prot&eacute;tica do caso apresentado, al&eacute;m da melhora est&eacute;tica, contribuiu muito para a ressocializa&ccedil;&atilde;o da crian&ccedil;a no ambiente familiar e escolar. O tratamento ortod&ocirc;ntico para a odontodisplasia regional &eacute; invi&aacute;vel, uma vez que as ra&iacute;zes dos dentes afetados s&atilde;o curtas e a densidade do osso alveolar &eacute; baixa, de forma que movimenta&ccedil;&atilde;o ortod&ocirc;ntica induziria a uma reabsor&ccedil;&atilde;o tanto da raiz quanto do osso<Sup>2,30</Sup>.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>CONCLUS&Atilde;O</b></font></p>     <p><font size="2" face="Verdana">As causas da odontodisplasia regional continuam desconhecidas e nenhum fator etiol&oacute;gico conhecido foi associado &agrave; ocorr&ecirc;ncia dessa condi&ccedil;&atilde;o no presente caso. O diagn&oacute;stico pode se dar com bases nas caracter&iacute;sticas cl&iacute;nicas e radiogr&aacute;ficas.</font></p>     <p><font size="2" face="Verdana">No caso apresentado, apenas a maxila foi afetada pela m&aacute; forma&ccedil;&atilde;o. Na maioria dos casos apenas um hemiarco est&aacute; comprometido, embora raramente mais de um quadrante possa estar afetado ou a linha m&eacute;dia seja transpassada. No caso apresentado houve transpasse da linha m&eacute;dia.</font></p>     <p><font size="2" face="Verdana"><b>Colaboradores</b></font></p>     <p><font size="2" face="Verdana">ASD CARREIRA, RTRM BASTOS, MSS KATAOKA, JJV PINHEIRO foram respons&aacute;veis pela an&aacute;lise e interpreta&ccedil;&atilde;o dos dados e pela reda&ccedil;&atilde;o do artigo. MGRPINHEIRO, LRPINHEIRO, JJV PINHEIRO foram respons&aacute;veis pela anamnese, exame cl&iacute;nico, tomada radiogr&aacute;fica e diagn&oacute;stico. </font></p>     <p>&nbsp;</p>     ]]></body>
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