<?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>1413-4012</journal-id>
<journal-title><![CDATA[RFO UPF]]></journal-title>
<abbrev-journal-title><![CDATA[RFO UPF]]></abbrev-journal-title>
<issn>1413-4012</issn>
<publisher>
<publisher-name><![CDATA[Faculdade de Odontologia da UPF]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1413-40122010000100015</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Erosão dental e suas implicações sobre a saúde bucal]]></article-title>
<article-title xml:lang="en"><![CDATA[Dental erosion and its implications on the oral health]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Catelan]]></surname>
<given-names><![CDATA[Anderson]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Guedes]]></surname>
<given-names><![CDATA[Ana Paula Albuquerque]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos]]></surname>
<given-names><![CDATA[Paulo Henrique dos]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Unesp FOA ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2010</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2010</year>
</pub-date>
<volume>15</volume>
<numero>1</numero>
<fpage>83</fpage>
<lpage>86</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&amp;pid=S1413-40122010000100015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_abstract&amp;pid=S1413-40122010000100015&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_pdf&amp;pid=S1413-40122010000100015&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Os conceitos de promoção de saúde bucal e o aumento da expectativa de vida têm contribuído para a maior manutenção dos elementos dentais. Assim, com os novos hábitos alimentares e comportamentais, a perda irreversível de tecido dental duro de origem não cariosa tem aumentado substancialmente, sendo dividida em atrição, erosão e abrasão. A erosão dental é uma enfermidade crônica, definida como a perda superficial de tecido dental duro como resultado de um processo químico sem envolvimento de bactérias, causada por ácidos, que podem ter origem intrínseca, extrínseca ou idiopática, provocando a perda irreversível de tecido mineralizado e hipersensibilidade dentinária. O presente trabalho tem por objetivo apresentar uma revisão da literatura sobre os principais fatores que podem ocasionar as lesões de erosão, reunindo os diferentes aspectos relacionados à sua etiologia, classificação, diagnóstico, prevenção e tratamento.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The concepts of buccal health promotion and the increase of life expectancy have contributed for the highest maintenance of dental elements. Thus, with the new alimentary and behavioral habits the irreversible loss of dental hard tissue of non-carious origin has increased substantially, being divided in attrition, erosion and abrasion. The dental erosion is a chronic pathology defined as the superficial loss of dental hard tissue as a result of a chemical process not involving bacteria caused by acid that could be intrinsic, extrinsic or unknown etiology, causing irreversible loss of mineral tissue and dentinal hypersensitivity. The aim of this paper is to present a review of literature on the main factors that can cause the injuries of erosion, including the different aspects related to its etiology, classification, diagnosis, prevention and treatment.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Erosão dentária]]></kwd>
<kwd lng="pt"><![CDATA[Desmineralização dentária]]></kwd>
<kwd lng="pt"><![CDATA[Saúde bucal]]></kwd>
<kwd lng="en"><![CDATA[Tooth erosion]]></kwd>
<kwd lng="en"><![CDATA[Tooth demineralization]]></kwd>
<kwd lng="en"><![CDATA[Oral health]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p><a name="top"></a><font face="Verdana, Arial, Helvetica, sans-serif" size="4"><b>Eros&atilde;o    dental e suas implica&ccedil;&otilde;es sobre a sa&uacute;de bucal</b></font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="3"><b>Dental erosion    and its implications on the oral health</b></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Anderson Catelan<sup>I</sup>;    Ana Paula Albuquerque Guedes<sup>I</sup>; Paulo Henrique dos Santos<sup>II</sup></b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><sup>I</sup>Cirurgi&otilde;es-dentistas,    alunos do curso de mestrado em Odontologia, &aacute;rea de concentra&ccedil;&atilde;o    Dent&iacute;stica na FOA/Unesp    <br>   <sup>II</sup>Doutor em Materiais Dent&aacute;rios, professor das disciplinas    de Materiais Dent&aacute;rios e Oclus&atilde;o da FOA/Unesp</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><a href="#back">Endere&ccedil;o    para correspond&ecirc;ncia</a></font></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p> <hr size="1" noshade>     <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">Os conceitos de    promo&ccedil;&atilde;o de sa&uacute;de bucal e o aumento da expectativa de vida    t&ecirc;m contribu&iacute;do para a maior manuten&ccedil;&atilde;o dos elementos    dentais. Assim, com os novos h&aacute;bitos alimentares e comportamentais, a    perda irrevers&iacute;vel de tecido dental duro de origem n&atilde;o cariosa    tem aumentado substancialmente, sendo dividida em atri&ccedil;&atilde;o, eros&atilde;o    e abras&atilde;o. A eros&atilde;o dental &eacute; uma enfermidade cr&ocirc;nica,    definida como a perda superficial de tecido dental duro como resultado de um    processo qu&iacute;mico sem envolvimento de bact&eacute;rias, causada por &aacute;cidos,    que podem ter origem intr&iacute;nseca, extr&iacute;nseca ou idiop&aacute;tica,    provocando a perda irrevers&iacute;vel de tecido mineralizado e hipersensibilidade    dentin&aacute;ria. O presente trabalho tem por objetivo apresentar uma revis&atilde;o    da literatura sobre os principais fatores que podem ocasionar as les&otilde;es    de eros&atilde;o, reunindo os diferentes aspectos relacionados &agrave; sua    etiologia, classifica&ccedil;&atilde;o, diagn&oacute;stico, preven&ccedil;&atilde;o    e tratamento.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Palavras-chave:    </b> Eros&atilde;o dent&aacute;ria. Desmineraliza&ccedil;&atilde;o dent&aacute;ria.    Sa&uacute;de bucal.</font></p> <hr size="1" noshade>     <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">The concepts of    buccal health promotion and the increase of life expectancy have contributed    for the highest maintenance of dental elements. Thus, with the new alimentary    and behavioral habits the irreversible loss of dental hard tissue of non-carious    origin has increased substantially, being divided in attrition, erosion and    abrasion. The dental erosion is a chronic pathology defined as the superficial    loss of dental hard tissue as a result of a chemical process not involving bacteria    caused by acid that could be intrinsic, extrinsic or unknown etiology, causing    irreversible loss of mineral tissue and dentinal hypersensitivity. The aim of    this paper is to present a review of literature on the main factors that can    cause the injuries of erosion, including the different aspects related to its    etiology, classification, diagnosis, prevention and treatment.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Key words:</b>    Tooth erosion. Tooth demineralization. Oral health.</font></p> <hr size="1" noshade>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="3"><b>Introdu&ccedil;&atilde;o</b></font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A evolu&ccedil;&atilde;o    da odontologia e a introdu&ccedil;&atilde;o dos conceitos voltados para a promo&ccedil;&atilde;o    de sa&uacute;de, aliadas ao aumento da expectativa de vida, t&ecirc;m contribu&iacute;do    com a crescente manuten&ccedil;&atilde;o dos elementos dentais<sup>1</sup>.    Esse fato e a concomitante mudan&ccedil;a nos h&aacute;bitos alimentares e comportamentais    contribuem para o surgimento de les&otilde;es advindas da perda de estrutura    dental.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A perda n&atilde;o    cariosa de tecido dental &eacute; um processo fisiol&oacute;gico que ocorre    durante toda vida<sup>2</sup>. Por&eacute;m, pode ser considerada patol&oacute;gica    quando o grau dessa destrui&ccedil;&atilde;o torna-se excessivo, causando problemas    funcionais e/ou est&eacute;ticos, podendo ocasionar sensibilidade para o paciente<sup>3</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Diferentes formas    de processos destrutivos cr&ocirc;nicos al&eacute;m da c&aacute;rie podem afetar    os dentes e causar a perda irrevers&iacute;vel da superf&iacute;cie externa    da estrutura dental<sup>4</sup>. Essas perdas de tecido dental duro de origem    n&atilde;o cariosa s&atilde;o designadas como atri&ccedil;&atilde;o, eros&atilde;o    ou abras&atilde;o<sup>3,5,6</sup>.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="3"><b>Revis&atilde;o    de literatura e discuss&atilde;o</b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Conceito, classifica&ccedil;&atilde;o    e terminologia</b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A eros&atilde;o    dental descreve o resultado f&iacute;sico de uma perda patol&oacute;gica, cr&ocirc;nica,    localizada e assintom&aacute;tica dos tecidos dentais duros pelo ataque qu&iacute;mico    da superf&iacute;cie do dente por &aacute;cido e/ou quelante, sem o envolvimento    de bact&eacute;rias<sup>4</sup>. O &aacute;cido de origem n&atilde;o bacteriana    &eacute;, provavelmente, a causa da eros&atilde;o, levando &agrave; desmineraliza&ccedil;&atilde;o    da matriz inorg&acirc;nica do dente<sup>3</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Os &aacute;cidos    respons&aacute;veis pela eros&atilde;o n&atilde;o s&atilde;o produtos da flora    intrabucal, podendo ser de origem da dieta, ocupa&ccedil;&atilde;o ou fontes    intr&iacute;nsecas<sup>4</sup>. De acordo com Imfeld<sup>4</sup> (1996), a classifica&ccedil;&atilde;o    pode ser baseada na etiologia, sendo dividida em:</font></p> <ul>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">eros&atilde;o      extr&iacute;nseca: resulta de &aacute;cidos ex&oacute;genos;</font></li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">eros&atilde;o      intr&iacute;nseca: resulta de &aacute;cidos end&oacute;genos;</font></li>       ]]></body>
<body><![CDATA[<li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">eros&atilde;o      idiop&aacute;tica: quando o diagn&oacute;stico n&atilde;o se faz poss&iacute;vel      por meio de exames cl&iacute;nicos ou da anamnese.</font></li>     </ul>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Em 1961 Mannerberg<sup>7</sup>    descreveu dois tipos de les&otilde;es erosivas usando o microsc&oacute;pio eletr&ocirc;nico    de varredura (MEV), de acordo com a atividade patog&ecirc;nica, classificando-as    como ativas ou inativas. Nas les&otilde;es ativas, o final dos prismas de esmalte    &eacute; dissolvido abaixo do n&iacute;vel do tecido adjacente, resultando numa    superf&iacute;cie fissurada, com aspecto de "favo de mel", ao passo que nas    les&otilde;es inativas os prismas s&atilde;o menos evidentes. Com a progress&atilde;o    da les&atilde;o para a dentina, os &aacute;cidos afetam primeiramente a dentina    peritubular; os t&uacute;bulos dentin&aacute;rios tornam-se alargados, afetando    tamb&eacute;m a dentina intertubular tamb&eacute;m<sup>6</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Eccles<sup>8</sup>    (1979) classificou a eros&atilde;o baseado na severidade cl&iacute;nica por    meio do exame visual das superf&iacute;cies dentais e atribuiu escores de acordo    com a extens&atilde;o das les&otilde;es:</font></p> <ul>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Classe I - Les&otilde;es      superficiais (envolvendo somente esmalte);</font></li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Classe II -      Les&otilde;es localizadas (envolvendo dentina em menos de um ter&ccedil;o      da superf&iacute;cie);</font></li>       <li><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Classe III -      Les&otilde;es generalizadas (envolvendo dentina em mais de um ter&ccedil;o      da superf&iacute;cie. III-a: superf&iacute;cies vestibulares; III-b: superf&iacute;cies      linguais e palatinas; III-c: superf&iacute;cies incisais e oclusais; III-d:      m&uacute;ltiplas superf&iacute;cies envolvidas severamente).</font></li>     </ul>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Embora o termo    "eros&atilde;o" seja amplamente divulgado e aceito na literatura odontol&oacute;gica,    na vis&atilde;o da biotribiologia - um ramo espec&iacute;fico relacionado &agrave;    &aacute;rea biol&oacute;gica da tribologia (ci&ecirc;ncia que estuda os fen&ocirc;menos    de atrito, lubrifica&ccedil;&atilde;o e desgaste) -, seria mais corretamente    designado de "corros&atilde;o", j&aacute; que essas les&otilde;es se originam    de processos de desgaste "corrosivo"<sup>1</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A perda de estrutura    dental por secre&ccedil;&otilde;es g&aacute;stricas, &aacute;cidos de origem    end&oacute;gena, &eacute; comumente denominada perim&oacute;lise<sup>4,6,9</sup>.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Etiologia</b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Fontes extr&iacute;nsecas</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Comidas e bebidas,    especialmente frutas, suco de frutas e refrigerantes, podem conter uma variedade    de &aacute;cidos danosos ao dente<sup>3</sup>; assim como &aacute;cidos presentes    no ar de ambientes de trabalho, piscinas com monitoramento do pH deficiente    e administra&ccedil;&atilde;o oral de medicamentos. No entanto, os &aacute;cidos    da dieta s&atilde;o a principal causa da eros&atilde;o dental por fatores extr&iacute;nsecos<sup>1,3,4</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">J&auml;rvinen et    al.<sup>10</sup> (1991) conclu&iacute;ram que pessoas que consomem frutas c&iacute;tricas    mais do que duas vezes ao dia apresentam um risco 37 vezes maior de desenvolverem    les&otilde;es por eros&atilde;o do que aquelas que n&atilde;o as consomem. O    progresso na perda de estrutura dental por eros&atilde;o &eacute; de aproximadamente    1 </font><font size="2">&#956;</font><font face="Verdana, Arial, Helvetica, sans-serif" size="2">m    ao dia<sup>11</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Fontes intr&iacute;nsecas</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&Aacute;cidos end&oacute;genos    pelo retorno do &aacute;cido g&aacute;strico em raz&atilde;o do refluxo volunt&aacute;rio    ou involunt&aacute;ri<sup>8</sup>. A eros&atilde;o dental pode ser efeito de    desordens psicossom&aacute;ticas, sendo as de especial interesse as que ocorrem    principalmente em pacientes jovens, como a bulimia e a anorexia, sobretudo em    mulheres jovens entre vinte e trinta anos<sup>1,12</sup>. Desordens som&aacute;ticas,    envolvendo per&iacute;odos de gravidez, alcoolismo e problemas gastrintestinais,    com recorrentes quadros de refluxos, regurgita&ccedil;&otilde;es e v&ocirc;mitos,    s&atilde;o fatores etiol&oacute;gicos intr&iacute;nsecos pelo contato frequente    dos &aacute;cidos end&oacute;genos com os dentes<sup>1</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Fontes idiop&aacute;ticas</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">S&atilde;o fontes    causadoras de eros&atilde;o dental, cujo diagn&oacute;stico n&atilde;o se faz    poss&iacute;vel por meio de exames cl&iacute;nicos ou da anamnese<sup>4</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Diagn&oacute;stico</b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A perda de tecido    dental pode ocorrer por in&uacute;meros meios, sendo a c&aacute;rie e o trauma    os mais comuns. Por&eacute;m, o desgaste dental tem assumido uma grande import&acirc;ncia    na atualidade<sup>13</sup>. O desgaste dental pode ocorrer por abras&atilde;o,    atri&ccedil;&atilde;o e eros&atilde;o, o que dificulta distinguir esses mecanismos,    embora o lugar do desgaste e sua apar&ecirc;ncia possam ajudar na determina&ccedil;&atilde;o    da prov&aacute;vel etiologia<sup>13</sup>.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Portanto, o diagn&oacute;stico    depende de um exame cl&iacute;nico bem realizado e de uma anamnese criteriosa,    uma vez que o est&aacute;gio da les&atilde;o &eacute; de extrema import&acirc;ncia    para o sucesso do tratamento a ser empregado. Durante a anamnese devem-se considerar    os h&aacute;bitos alimentares, dist&uacute;rbios gastrintestinais, uso de medicamentos,    disfun&ccedil;&atilde;o de gl&acirc;ndulas salivares, exposi&ccedil;&atilde;o    a meios &aacute;cidos durante o trabalho e h&aacute;bitos durante a higiene    bucal<sup>14</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Ao exame cl&iacute;nico,    as les&otilde;es de eros&atilde;o apresentam-se comumente com aspecto superficial    fosco e aus&ecirc;ncia de limites bem definidos<sup>15</sup>. Em raz&atilde;o    de seus pr&oacute;prios fatores causais, o processo erosivo dificilmente se    limita &agrave; regi&atilde;o cervical dos dentes, envolvendo v&aacute;rias    outras superf&iacute;cies<sup>1</sup>. Les&otilde;es de eros&atilde;o associadas    com refluxo gastrintestinal apresentam-se como depress&otilde;es c&ocirc;ncavas    nas superf&iacute;cies palatina e oclusal dos dentes maxilares, bem como nas    superf&iacute;cies lingual e oclusal dos dentes posteriores mandibulares<sup>6</sup>.    Eros&atilde;o associada com a dieta pode ser evidente na superf&iacute;cie vestibular    dos dentes anteriores maxilares e apresenta-se como depress&otilde;es escavadas    para fora<sup>6</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Quando a eros&atilde;o    dental acomete dentes restaurados, as restaura&ccedil;&otilde;es tornam-se salientes,    projetando-se acima da superf&iacute;cie dental<sup>16</sup>. Um r&aacute;pido    processo pode causar sensibilidade dos dentes, embora uma progress&atilde;o    lenta possa ser assintom&aacute;tica<sup>17</sup>. Em cemento e dentina radiculares    expostos ao meio bucal, essa les&atilde;o apresenta maior velocidade de progress&atilde;o<sup>1</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><b>Tratamento</b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A partir do diagn&oacute;stico    podem-se instituir m&eacute;todos preventivos, atuando sobre os fatores causais    da les&atilde;o no sentido de impedir sua forma&ccedil;&atilde;o ou progress&atilde;o,    e/ou terap&ecirc;uticos, buscando a restitui&ccedil;&atilde;o da forma, fun&ccedil;&atilde;o    e est&eacute;tica<sup>1</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A preven&ccedil;&atilde;o    da eros&atilde;o pode ser institu&iacute;da de duas maneiras: pelo enfraquecimento    do potencial erosivo dos &aacute;cidos ou pelo aumento na resist&ecirc;ncia    dos dentes<sup>18</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A utiliza&ccedil;&atilde;o    de bochechos com fl&uacute;or e dentifr&iacute;cios fluoretados tem sido relatada    como um m&eacute;todo preventivo, uma vez que o fl&uacute;or aumenta a resist&ecirc;ncia    do esmalte &agrave; dissolu&ccedil;&atilde;o provocada pelos &aacute;cidos<sup>9,19,20</sup>.    Ainda, ap&oacute;s o contato dos dentes com &aacute;cidos podem-se realizar    bochechos com bicarbonato de s&oacute;dio, consumo de produtos como leite e    queijo e mastiga&ccedil;&atilde;o de goma de mascar contendo ureia ou bicarbonato,    com o objetivo de neutralizar os &aacute;cidos<sup>18</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Se a eros&atilde;o    tiver como etiologia a dieta, deve-se diminuir a frequ&ecirc;ncia de consumo    de comidas &aacute;cidas e restringir seu consumo juntamente com as refei&ccedil;&otilde;es.    A ingest&atilde;o de bebidas &aacute;cidas deve ser realizada, preferencialmente,    de forma r&aacute;pida ou utilizando-se canudo<sup>21</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">A escova&ccedil;&atilde;o    dental logo ap&oacute;s o contato dos dentes com &aacute;cidos deve ser evitada,    a fim de possibilitar o contato da saliva para a neutraliza&ccedil;&atilde;o    do pH do ambiente bucal<sup>22</sup>; ainda, deve-se instruir o paciente a utilizar    escova com cerdas macias e dentifr&iacute;cio fluoretado n&atilde;o abrasivo<sup>17,18,20</sup>.    Para pacientes com baixo fluxo salivar, e consequente diminui&ccedil;&atilde;o    da efetividade da lubrifica&ccedil;&atilde;o e capacidade tamp&atilde;o, pode    ser indicado o uso de saliva artificial<sup>1</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Os pacientes que    apresentam essas perdas de estrutura dental comumente t&ecirc;m hiperestesia    dentin&aacute;ria<sup>23-25</sup>. A conduta cl&iacute;nica depende do grau    de severidade das les&otilde;es, podendo ser realizadas aplica&ccedil;&otilde;es    t&oacute;picas de fl&uacute;or semanais<sup>13,20</sup>; utiliza&ccedil;&atilde;o    de vernizes fluoretados<sup>13,17</sup>; de agentes dessensibilizantes<sup>6</sup>    ou at&eacute; tratamentos reabilitadores, uma vez que a perda de estrutura mineralizada    pode causar danos funcionais<sup>23,24,26,27</sup>.</font></p>     ]]></body>
<body><![CDATA[<p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Como materiais    restauradores podem ser utilizados a resina composta ou o ion&ocirc;mero de    vidro<sup>18,20,23,28</sup>; facetas de porcelana ou resina composta<sup>23,29</sup>;    <i>onlays</i> nos dentes posteriores<sup>19</sup>; ou ainda, em casos de perda    severa de estrutura dental, a confec&ccedil;&atilde;o de coroas totais<sup>19,20,27,30</sup>.    Quando a vitalidade pulpar for comprometida, deve-se realizar o tratamento endod&ocirc;ntico    previamente ao procedimento restaurador<sup>19,20,27</sup>.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Para Milosevic<sup>31</sup>    (1996), as restaura&ccedil;&otilde;es de comp&oacute;sito s&atilde;o prefer&iacute;veis    &agrave;s de cimento de ion&ocirc;mero de vidro, uma vez que as primeiras n&atilde;o    s&atilde;o sol&uacute;veis em &aacute;cido.</font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Entretanto, &eacute;    importante ressaltar que a reabilita&ccedil;&atilde;o tem como fun&ccedil;&atilde;o    restabelecer a forma, a fun&ccedil;&atilde;o e a est&eacute;tica, promovendo    conforto ao paciente e facilitando a higieniza&ccedil;&atilde;o bucal, n&atilde;o    levando ao desaparecimento de novas les&otilde;es. Assim, &eacute; de extrema    import&acirc;ncia o tratamento da causa da eros&atilde;o dental, muitas vezes    com acompanhamento multiprofissional do caso, envolvendo cirurgi&otilde;es-dentistas,    m&eacute;dicos, nutricionistas e psic&oacute;logos.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="3"><b>Considera&ccedil;&otilde;es    finais</b></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">&Eacute; de extrema    import&acirc;ncia reconhecer as les&otilde;es de eros&atilde;o no seu est&aacute;gio    inicial, utilizando-se de uma anamnese detalhada e um criterioso exame cl&iacute;nico,    com o objetivo de identificar o fator etiol&oacute;gico no sentido de impedir    sua progress&atilde;o e instituir um plano de tratamento restaurador quando    necess&aacute;rio, encaminhando o paciente a outro profissional quando pertinente.</font></p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="3"><b>Refer&ecirc;ncias</b></font></p>     <!-- ref --><p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">1. Hara AT, Purquerio    BM, Serra MC. Estudo das les&otilde;es cervicais n&atilde;o-cariosas: aspectos    biotribol&oacute;gicos. RPG Rev P&oacute;s Grad 2005; 12(1):114-8.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=133238&pid=S1413-4012201000010001500001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
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<body><![CDATA[<p>&nbsp;</p>     <p>&nbsp;</p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2"><a name="back"></a><a href="#top"><img src="/img/revistas/rfo/v15n1/seta.jpg" border="0"></a>    <b>Endere&ccedil;o para correspond&ecirc;ncia:</b>     <br>   Anderson Catelan    <br>   Rua Cacique, 28 Jd, Planalto    <br>   16072-330 Ara&ccedil;atuba - SP    <br>   Fone: (18) 3623 9092    <br>   E-mail: <a href="mailto:catelan@estadao.com.br">catelan@estadao.com.br</a></font></p>     <p><font face="Verdana, Arial, Helvetica, sans-serif" size="2">Recebido: 29.05.2009    <br>   Aceito: 02.09.2009</font></p>     ]]></body>
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