<?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>1984-5960</journal-id>
<journal-title><![CDATA[Innovations Implant Journal]]></journal-title>
<abbrev-journal-title><![CDATA[Innov. Implant. J., Biomater. Esthet. (Online)]]></abbrev-journal-title>
<issn>1984-5960</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Experimentos e Pesquisas Odontológicas - INEPO]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1984-59602010000100007</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[In&#64258;uência da macro-geometria na estabilidade primária dos implantes]]></article-title>
<article-title xml:lang="en"><![CDATA[In&#64258;uence of macro-geometry in the primary stability of implants]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bezerra]]></surname>
<given-names><![CDATA[Fábio]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[Érica Del Peloso]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sousa]]></surname>
<given-names><![CDATA[Sandro Bittencourt]]></given-names>
</name>
<xref ref-type="aff" rid="A03"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lenharo]]></surname>
<given-names><![CDATA[Ariel]]></given-names>
</name>
<xref ref-type="aff" rid="A04"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Nacional de Experimentos e Pesquisas Odontológicas  ]]></institution>
<addr-line><![CDATA[São Paulo SP]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Escola Bahiana de Medicina e Saúde Pública  ]]></institution>
<addr-line><![CDATA[Salvador BA]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A03">
<institution><![CDATA[,Escola Bahiana de Medicina e Saúde Pública  ]]></institution>
<addr-line><![CDATA[Salvador BA]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="A04">
<institution><![CDATA[,Universidade Estadual Paulista Faculdade de Odontologia de Araçatuba ]]></institution>
<addr-line><![CDATA[Araçatuba SP]]></addr-line>
<country>Brasil</country>
</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>5</volume>
<numero>1</numero>
<fpage>29</fpage>
<lpage>34</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&amp;pid=S1984-59602010000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_abstract&amp;pid=S1984-59602010000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://revodonto.bvsalud.org/scielo.php?script=sci_pdf&amp;pid=S1984-59602010000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[A estabilidade primária dos implantes está intimamente relacionada à macro-geometria dos implantes na medida que pode aumentar o contato íntimo entre o biomaterial e a estrutura óssea. O objetivo do presente estudo foi avaliar a influência da macro-geometria na estabilidade primária dos implantes. Foram utilizados dois tipos de implantes, um cilíndrico e com rosca única (grupo controle) e outro com conicidade apical e três tipos de roscas (grupo teste). Os implantes foram instalados por três operadores em osso bovino fresco. Cada profissional fez a instalação de oito implantes (4 teste e 4 controle) em osso bovino Os parâmetros avaliados foram: torque de inserção, frequência de ressonância e torque de remoção. A análise dos resultados permitiu a detecção de que os torques de inserção foram maiores no grupo teste (p < 0,05). Não foi observada influência do operador nas variáveis analisadas. Pode-se então concluir que a macro-geometria dos implantes do grupo teste favoreceu a estabilidade primária do implante.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The primary stability of implants is related to implant geometry since it can raise the intimate contact between biomaterial and bone structure. The aim of the present study was to evaluate the influence of implant geometry on primary stability. It was used two types of implants, one cylindrical and with an unique thread (control group) and another tapered with three types of threads (test group). Implants were placed by three professionals in bovine bone. Each operator installed eight implants (4 test and 4 control). The parameters analyzed were: inserting torque, unscrewing torque and resonance frequency. As results it was detected that insertion torque was higher in the test group (p < 0,05). It was not observed influence of the operator in the parameters analyzed. Thus, it can be concluded that geometry of implants in the test group improved implant primary stability.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Osseointegração]]></kwd>
<kwd lng="pt"><![CDATA[Implantes dentários]]></kwd>
<kwd lng="pt"><![CDATA[Titânio]]></kwd>
<kwd lng="en"><![CDATA[Osseointegrations]]></kwd>
<kwd lng="en"><![CDATA[Dental implants]]></kwd>
<kwd lng="en"><![CDATA[Titanium]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="right"><font size="2" face="Verdana"><B>ARTIGOS CIENT&Iacute;FICOS</b></font></p>     <p>&nbsp;</p>     <p><font size="4" face="Verdana"><B><a name="tx"></a>In&#64258;u&ecirc;ncia da macro&#45;geometria na estabilidade prim&aacute;ria dos implantes</B></font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><B>In&#64258;uence of macro&#45;geometry in the primary stability of implants</B></font></p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"><b>F&aacute;bio Bezerra<Sup>I</Sup>; &Eacute;rica Del Peloso Ribeiro<Sup>II</Sup>; Sandro Bittencourt Sousa<Sup>III</Sup>; Ariel Lenharo<Sup><Sup>IV</Sup></Sup></b></font></p>     <p><font size="2" face="Verdana"><sup>I</sup>Especialista em Periodontia. Diretor Cl&iacute;nico, INEPO &#45; Instituto Nacional de Experimentos e Pesquisas Odontol&oacute;gicas, S&atilde;o Paulo, SP, Brasil    <br>     <sup>II</sup>Doutora em Cl&iacute;nica Odontol&oacute;gica (Periodontia). Professora Adjunta, Escola Bahiana de Medicina e Sa&uacute;de P&uacute;blica, Salvador, BA, Brasil    ]]></body>
<body><![CDATA[<br>     <sup>III</sup>Doutor em Cl&iacute;nica Odontol&oacute;gica (Periodontia). Professor Adjunto, Escola Bahiana de Medicina e Sa&uacute;de P&uacute;blica, Salvador, BA, Brasil    <br>     <sup>IV</sup>Doutor em Implantodontia, Faculdade de Odontologia de Ara&ccedil;atuba, Universidade Estadual Paulista, Ara&ccedil;atuba, SP, Brasil</font></p>     <p><font size="2" face="Verdana"><a href="#nt">Endere&ccedil;o para correspond&ecirc;ncia</a></font></p>     <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">A estabilidade prim&aacute;ria dos implantes est&aacute; intimamente relacionada &agrave; macro&#45;geometria dos implantes na medida que pode aumentar o contato &iacute;ntimo entre o biomaterial e a estrutura &oacute;ssea. O objetivo do presente estudo foi avaliar a influ&ecirc;ncia da macro&#45;geometria na estabilidade prim&aacute;ria dos implantes. Foram utilizados dois tipos de implantes, um cil&iacute;ndrico e com rosca &uacute;nica (grupo controle) e outro com conicidade apical e tr&ecirc;s tipos de roscas (grupo teste). Os implantes foram instalados por tr&ecirc;s operadores em osso bovino fresco. Cada profissional fez a instala&ccedil;&atilde;o de oito implantes (4 teste e 4 controle) em osso bovino Os par&acirc;metros avaliados foram: torque de inser&ccedil;&atilde;o, frequ&ecirc;ncia de resson&acirc;ncia e torque de remo&ccedil;&atilde;o. A an&aacute;lise dos resultados permitiu a detec&ccedil;&atilde;o de que os torques de inser&ccedil;&atilde;o foram maiores no grupo teste (p &lt; 0,05). N&atilde;o foi observada influ&ecirc;ncia do operador nas vari&aacute;veis analisadas. Pode&#45;se ent&atilde;o concluir que a macro&#45;geometria dos implantes do grupo teste favoreceu a estabilidade prim&aacute;ria do implante.</font></p>     <p><font size="2" face="Verdana"><b>Palavras&#45;chave:</b> Osseointegra&ccedil;&atilde;o. Implantes dent&aacute;rios. Tit&acirc;nio.</font></p> <hr size="1" noshade>     <p><font size="2" face="Verdana"><b>ABSTRACT</b></font></p>     <p><font size="2" face="Verdana">The primary stability of implants is related to implant geometry since it can raise the intimate contact between biomaterial and bone structure. The aim of the present study was to evaluate the influence of implant geometry on primary stability. It was used two types of implants, one cylindrical and with an unique thread (control group) and another tapered with three types of threads (test group). Implants were placed by three professionals in bovine bone. Each operator installed eight implants (4 test and 4 control). The parameters analyzed were: inserting torque, unscrewing torque and resonance frequency. As results it was detected that insertion torque was higher in the test group (p &lt; 0,05). It was not observed influence of the operator in the parameters analyzed. Thus, it can be concluded that geometry of implants in the test group improved implant primary stability.</font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana"><b>Key words:</b> Osseointegrations. Dental implants. Titanium.</font></p> <hr size="1" noshade>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>INTRODU&Ccedil;&Atilde;O</b></font></p>     <p><font size="2" face="Verdana">A reabilita&ccedil;&atilde;o oral utilizando implantes osseointegr&aacute;veis &eacute; hoje uma das modalidades terap&ecirc;uticas de maior sucesso na odontologia, devido ao seu alto grau de previsibilidade cl&iacute;nica, associado &agrave; evidencia&ccedil;&atilde;o cient&iacute;fica consistente para diferentes tipos de edentulismo. Apesar da sedimenta&ccedil;&atilde;o do conceito de osseointegra&ccedil;&atilde;o e os princ&iacute;pios biol&oacute;gicos que a norteiam, o desejo de usar implantes em situa&ccedil;&otilde;es cl&iacute;nicas cada vez mais desafiadoras estimula a realiza&ccedil;&atilde;o de estudos sobre tipos de superf&iacute;cie de implante<SUP>5</SUP>, assim como sua macro&#45;geometria<SUP>6,9,10</SUP> e potenciais altera&ccedil;&otilde;es que podem interferir positivamente no processo cicatricial<SUP>16</SUP>. Essas buscas se traduzem clinicamente muitas vezes em redu&ccedil;&atilde;o do tempo de tratamento, por meio da redu&ccedil;&atilde;o do tempo para estabelecimento da osseointegra&ccedil;&atilde;o, assim como na simplifica&ccedil;&atilde;o dos procedimentos cl&iacute;nicos utilizados<SUP>2</SUP>.</font></p>     <p><font size="2" face="Verdana">Especificamente, em rela&ccedil;&atilde;o ao macro e microdesenho dos implantes, apesar da necessidade de maior confirma&ccedil;&atilde;o cient&iacute;fica, parece haver uma associa&ccedil;&atilde;o entre algumas caracter&iacute;sticas, como dist&acirc;ncia entre as roscas, profundidade da rosca e o sucesso da terapia com implantes<SUP>1</SUP>.</font></p>     <p><font size="2" face="Verdana">Nesses estudos, a estabilidade prim&aacute;ria dos implantes tem sido utilizada como indicador de futura osseointegra&ccedil;&atilde;o e &eacute; indicada como elemento chave do sucesso cl&iacute;nico. Assim, &eacute; um par&acirc;metro cl&iacute;nico relevante para tomada de decis&atilde;o em rela&ccedil;&atilde;o &agrave; realiza&ccedil;&atilde;o ou n&atilde;o da carga imediata. Essa estabilidade &eacute; influenciada por fatores relacionados ao sistema de fresagem, &agrave; macro&#45;geometria dos implantes e densidade &oacute;ssea<SUP>11</SUP>. Ainda n&atilde;o existe consenso sobre qual o desenho de implante que melhor favore&ccedil;a a osseointegra&ccedil;&atilde;o em diferentes densidades.</font></p>     <p><font size="2" face="Verdana">Diante da import&acirc;ncia desse conhecimento e da evolu&ccedil;&atilde;o dos implantes dentais, o objetivo do presente estudo foi avaliar a influ&ecirc;ncia da macro&#45;geometria dos implantes na obten&ccedil;&atilde;o da estabilidade prim&aacute;ria.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>MATERIAL E M&Eacute;TODOS</b></font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Este estudo foi conduzido no INEPO, Instituto de Ensino e Pesquisa em Odontologia (S&atilde;o Paulo, Brasil), utilizando tr&ecirc;s operadores calibrados e com experi&ecirc;ncia pr&eacute;via    <br>   em osseointegra&ccedil;&atilde;o.</font></p>     <p><font size="2" face="Verdana"><b>DELINEAMENTO DO ESTUDO</B></font></p>     <p><font size="2" face="Verdana">Foram utilizados dois tipos de implantes com diferentes macro&#45;geometrias, denominados grupo controle (implantes Try&#45;On, SIN &#45; Sistema de Implante, S&atilde;o Paulo, SP, Brasil) e grupo teste (implantes Unitite, SIN &#45; Sistema de Implante, S&atilde;o Paulo, SP, Brasil), sendo instalados em osso bovino fresco (<a href="#fig1">Figuras 1</a> e <a href="#fig2">2</a>).</font></p>     <p><a name="fig1"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig01.jpg"></p>     <p>&nbsp;</p>     <p><a name="fig2"></a></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><img src="/img/revistas/iij/v5n1/a07fig02.jpg"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana">O implante do grupo controle (<a href="#fig3">Figura 3</a>) tem macro&#45;geometria com formato cil&iacute;ndrico, com rosca &uacute;nica e perfil de corte triangular, enquanto o implante do grupo teste (<a href="#fig4">Figura 4</a>) tem formato cil&iacute;ndrico com conicidade na sua por&ccedil;&atilde;o apical, tr&ecirc;s tipos de rosca (micro&#45;roscas na por&ccedil;&atilde;o cervical, rosca externa e rosca interna) e perfil de corte quadrado. Todos os implantes utilizados foram de 4,0 mil&iacute;metros de di&acirc;metro e 10,0 mil&iacute;metros de comprimento.</font></p>     <p><a name="fig3"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig03.jpg"></p>     <p>&nbsp;</p>     <p><a name="fig4"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig04.jpg"></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana">Cada profissional fez a instala&ccedil;&atilde;o de oito implantes (4 testes e 4 controles) em osso bovino. O n&uacute;mero total de implantes instalados foi 24 (<a href="#fig5">Figuras 5 a 9</a>).</font><a name="fig5"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig05.jpg"></p>     <p>&nbsp;</p>     <p><a name="fig6"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig06.jpg"></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><a name="fig7"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig07.jpg"></p>     <p>&nbsp;</p>     <p><a name="fig8"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig08.jpg"></p>     <p>&nbsp;</p>     <p><a name="fig9"></a></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig09.jpg"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"><b>PARÂMETROS ANALISADOS</b></font></p>     <p><font size="2" face="Verdana">As vari&aacute;veis analisadas foram: torque de inser&ccedil;&atilde;o, frequ&ecirc;ncia de resson&acirc;ncia e torque de remo&ccedil;&atilde;o. Os torques de inser&ccedil;&atilde;o foram determinados pela utiliza&ccedil;&atilde;o de um torqu&iacute;metro cir&uacute;rgico calibrado (SIN &#45; Sistema de Implante Nacional, S&atilde;o Paulo, SP, Brasil) com limite para torque de 80 N/cm, enquanto o torque de remo&ccedil;&atilde;o foi aferido utilizando&#45;se um torqu&iacute;metro digital modelo BG1 (MARK&#45;10, Copiague, NY, Estados Unidos) (<a href="#fig10">Figura 10</a>). A an&aacute;lise de frequ&ecirc;ncia de resson&acirc;ncia foi realizada com o aparelho Osstell (Osstell AB, Gotemburgo, Su&eacute;cia) (<a href="#fig11">Figura 11</a>).</font></p>     <p><a name="fig10"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig10.jpg"></p>     <p>&nbsp;</p>     <p><a name="fig11"></a></p>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07fig11.jpg"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"><b>ANÁLISE DOS RESULTADOS</b></font></p>     <p><font size="2" face="Verdana">A an&aacute;lise de vari&acirc;ncia (ANOVA) foi o teste escolhido para compara&ccedil;&atilde;o entre implantes, j&aacute; que essas vari&aacute;veis se apresentaram como quantitativas, com distribui&ccedil;&atilde;o normal e vari&acirc;ncias homog&ecirc;neas. O teste de Tukey foi feito para avaliar a signific&acirc;ncia estat&iacute;stica das diferen&ccedil;as observadas no ANOVA. As vari&aacute;veis independentes foram implante e operador, enquanto as vari&aacute;veis dependentes foram torque de inser&ccedil;&atilde;o, frequ&ecirc;ncia de resson&acirc;ncia e torque de remo&ccedil;&atilde;o. Foi adotado um n&iacute;vel de signific&acirc;ncia de 5%.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>RESULTADOS</b></font></p>     <p><font size="2" face="Verdana">Diferen&ccedil;as, estatisticamente significantes, entre os implantes foram observadas para o torque de inser&ccedil;&atilde;o (<a href="#tab1">Tabela 1</a>).</font></p>     <p><a name="tab1"></a></p>     <p>&nbsp;</p>     ]]></body>
<body><![CDATA[<p align="center"><img src="/img/revistas/iij/v5n1/a07tab01.jpg"></p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana">Nenhum dos par&acirc;metros analisados sofreu influ&ecirc;ncia do operador, o que significa que n&atilde;o foram observadas diferen&ccedil;as significativas entre os operadores, para torque de inser&ccedil;&atilde;o, an&aacute;lise de frequ&ecirc;ncia de resson&acirc;ncia e torque de remo&ccedil;&atilde;o (<a href="#tab2">Tabela 2</a>).</font></p>     <p><a name="tab2"></a></p>     <p>&nbsp;</p>     <p align="center"><img src="/img/revistas/iij/v5n1/a07tab02.jpg"></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>DISCUSS&Atilde;O</b></font></p>     <p><font size="2" face="Verdana">A estabilidade do implante desempenha um papel cr&iacute;tico nas taxas de sucesso. Essa estabilidade prim&aacute;ria tem sido determinada por alguns autores pela medida do torque de inser&ccedil;&atilde;o e/ou torque de remo&ccedil;&atilde;o<SUP>4,19</SUP>. Para essa primeira vari&aacute;vel, os resultados do presente estudo demonstraram que maior estabilidade inicial foi conseguida com os implantes do grupo teste.</font></p>     <p><font size="2" face="Verdana">Essa maior estabilidade inicial dos implantes do grupo teste, verificada pelos maiores valores de torque de inser&ccedil;&atilde;o, pode ser explicada por sua macro&#45;geometria e seu sistema de fresagem. Merecem destaque a conicidade desse implante na sua por&ccedil;&atilde;o mais apical, os tr&ecirc;s tipos de rosca e o perfil de corte das roscas. As micro&#45;roscas devem aumentar a &aacute;rea de contato osso&#45;implante e a exist&ecirc;ncia de uma rosca interna e externa no corpo do implante deve influenciar o processo de reparo e osseointegra&ccedil;&atilde;o<SUP>10</SUP>. Em rela&ccedil;&atilde;o &agrave; conicidade, diversos autores t&ecirc;m demonstrado que ela aumenta a estabilidade inicial do implante e por isso implantes c&ocirc;nicos s&atilde;o bem indicados em regi&otilde;es de menor densidade &oacute;ssea<SUP>8,12&#45;15</SUP>.</font></p>     ]]></body>
<body><![CDATA[<p><font size="2" face="Verdana">Outra maneira de aferir a estabilidade prim&aacute;ria &eacute; por meio da an&aacute;lise de frequ&ecirc;ncia de resson&acirc;ncia. Essa an&aacute;lise &eacute; uma maneira pr&aacute;tica e objetiva de medir a estabilidade do implante e osseointegra&ccedil;&atilde;o<SUP>17</SUP>. Al&eacute;m disso, &eacute; um m&eacute;todo n&atilde;o&#45;invasivo e que n&atilde;o causa danos &agrave; interface implante&#45;osso, como pode acontecer clinicamente com a medi&ccedil;&atilde;o do torque de remo&ccedil;&atilde;o. Nessa avalia&ccedil;&atilde;o, n&atilde;o foi encontrada diferen&ccedil;a entre os implantes, mesmo com maiores n&iacute;veis de torque de inser&ccedil;&atilde;o apresentados pelo grupo teste. Isso pode ser explicado pelo fato da macro&#45;geometria deste implante gerar um contato parcial do mesmo com o tecido &oacute;sseo, criando c&acirc;maras para obten&ccedil;&atilde;o da ossifica&ccedil;&atilde;o intra&#45;membranosa, diferentemente do grupo controle, onde existe um maior contato do implante com o tecido &oacute;sseo no momento da sua instala&ccedil;&atilde;o. Apesar disso, os valores da an&aacute;lise de frequ&ecirc;ncia de resson&acirc;ncia do grupo teste n&atilde;o s&atilde;o inferiores ao do grupo controle, pois para essa avalia&ccedil;&atilde;o a regi&atilde;o marginal &eacute; a mais importante<SUP>7</SUP>.</font></p>     <p><font size="2" face="Verdana">Outro fator associado ao desempenho dos implantes osseointegrados e at&eacute; a dor experimentada pelo paciente ap&oacute;s o procedimento cir&uacute;rgico para coloca&ccedil;&atilde;o de implantes dentais estava significativamente associada com a experi&ecirc;ncia do operador<SUP>3,18</SUP>. Apesar, de no presente estudo todos os profissionais envolvidos apresentarem experi&ecirc;ncia pr&eacute;via com osseointegra&ccedil;&atilde;o, os resultados do presente estudo mostraram influ&ecirc;ncia do operador em todas as vari&aacute;veis analisadas para ambos os implantes testados.</font></p>     <p><font size="2" face="Verdana">O conhecimento biol&oacute;gico relativo ao processo da osseointegra&ccedil;&atilde;o, associado ao dom&iacute;nio da t&eacute;cnica operat&oacute;ria e utiliza&ccedil;&atilde;o de um sistema de implantes que influencie positivamente o tempo intra&#45;operat&oacute;rio e a estabilidade prim&aacute;ria obtida em diferentes densidades &oacute;sseas, pode aumentar os &iacute;ndices de previsibilidade de tratamento com implantes e simplificar os procedimentos cir&uacute;rgicos realizados em Implantodontia, elevando o seu &iacute;ndice de sucesso cl&iacute;nico e satisfa&ccedil;&atilde;o dos pacientes em rela&ccedil;&atilde;o ao tratamento como um todo.</font></p>     <p>&nbsp;</p>     <p><font size="3" face="Verdana"><b><b>CONCLUS&Atilde;O</b></b></font></p>     <p><font size="2" face="Verdana">Dentro dos limites deste estudo, podemos concluir que:</font></p>      <blockquote>       <p><font size="2" face="Verdana">1. A macro&#45;geometria do implante do grupo teste apresentou resultados superiores e estatisticamente significantes no torque de inser&ccedil;&atilde;o quando comparada ao grupo controle.</font></p>       <p><font size="2" face="Verdana">2. N&atilde;o houve diferen&ccedil;as estatisticamente significativas entre os grupos quando foi avaliada a an&aacute;lise de frequ&ecirc;ncia de resson&acirc;ncia e o torque de remo&ccedil;&atilde;o.</font></p>       <p><font size="2" face="Verdana">3. Estudos cl&iacute;nicos prospectivos longitudinais s&atilde;o necess&aacute;rios para confirmar os reais benef&iacute;cios cl&iacute;nicos gerados pelas mudan&ccedil;as na macro&#45;geometria aqui apresentados.</font></p> </blockquote>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p><font size="3" face="Verdana"><b>REFERÊNCIAS</b></font></p>     <!-- ref --><p><font size="2" face="Verdana">1. Abuhussein H, Pagni G, Rebaudi A, Wang HL. The effect of thread pattern upon implant osseointegration. Clin Oral Implants Res. 2010;21(2):129&#45;36.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086161&pid=S1984-5960201000010000700001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">2. Albrektsson T, Wennerberg A. Oral implant surfaces: part 2 &#150; review focusing on clinical knowledge of different surfaces. Int J Prosthodont. 2004;17(5):544&#45;64.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086163&pid=S1984-5960201000010000700002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">3. Al&#45;Khabbaz AK, Griffin TJ, Al&#45;Shammari KF. Assessment of pain associated with the surgical placement of dental implants. J Periodontol. 2007;78(2):239&#45;46.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086165&pid=S1984-5960201000010000700003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">4. Aparicio C, Lang NP, Rangert B. Validity and clinical significance of biomechanical testing of implant/bone interface. Clin Oral Implants Res. 2006;17(Suppl 2):2&#45;7.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086167&pid=S1984-5960201000010000700004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
<body><![CDATA[<!-- ref --><p><font size="2" face="Verdana">5. Buser D, Broggini N, Wieland M, Schenk RK, Denzer AJ, Cochran DL, et al. Enhanced bone apposition to a chemically modified SLA titanium surface. J Dent Res. 2004;83(7):529&#45;33.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086169&pid=S1984-5960201000010000700005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">6. Coelho PG, Suzuki M, Guimaraes MV, Marin C, Granato R, Gil JN, et al. Early bone healing around different implant bulk <i>design</i>s and surgical techniques: a study in dogs. Clin Implant Dent Relat Res. 2009; May 7. Epub ahead of print.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086171&pid=S1984-5960201000010000700006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">7. Ito Y, Sato D, Yoneda S, Ito D, Kondo H, Kasugai S. Relevance of resonance frequency analysis to evaluate dental implant stability: simulation and histomorphometrical animal experiments. Clin Oral Implants Res. 2008;19(1):9&#45;14.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086173&pid=S1984-5960201000010000700007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">8. Greenstein G, Cavallaro J, Romanos G, Tarnow D. Clinical recommendations for avoiding and managing surgical complications associated with implant dentistry: a review. J Periodontol. 2008;79(8):1317&#45;29.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086175&pid=S1984-5960201000010000700008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">9. Leonard G, Coelho P, Polyzois I, Stassen L, Claffey N. A study of the bone healing kinetics of plateau versus screw root <i>design</i> titanium dental implants. Clin Oral Implants Res. 2009;20(3):232&#45;9.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086177&pid=S1984-5960201000010000700009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
<body><![CDATA[<!-- ref --><p><font size="2" face="Verdana">10. Marin C, Granato R, Suzuki M, Gil JN, Janal MN, Coelho PG. Histomorphologic and histomorphometric evaluation of various endosseous implant healing chamber configurations at early implantation times: a atudy in dogs. Clin Oral Implants Res. 2010; Jan 22. Epub ahead of print.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086179&pid=S1984-5960201000010000700010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">11. Orsini E, Salgarello S, Bubalo M, Lazic Z, Trire A, Martini D, et al. Histomorphometric evaluation of implant <i>design</i> as a key factor in peri&#45;implant bone response: a preliminary study in a dog model. Minerva Stomatol. 2009;58(6):263&#45;75.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086181&pid=S1984-5960201000010000700011&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">12. O'Sullivan D, Sennerby L, Meredith N. Measurements comparing the initial stability of five <i>design</i>s of dental implants: a human cad&aacute;ver study. Clin Implant Dent Relat Res. 2000;2(2):85&#45;92.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086183&pid=S1984-5960201000010000700012&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">13. Porter JA, von Fraunhofer JA. Success or failure of dental implants? A literature review with treatment considerations. Gen Dent. 2005;53(6):423&#45;32.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086185&pid=S1984-5960201000010000700013&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">14. Sakoh J, Wahlmann U, Stender E, Nat R, Al&#45;Nawas B, Wagner W. Primary stability of a conical implant and a hybrid, cylindric screw&#45;type implant <i>in vitro</i>. Int J Oral Maxillofac Implants. 2006;21(4):560&#45;6.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086187&pid=S1984-5960201000010000700014&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
<body><![CDATA[<!-- ref --><p><font size="2" face="Verdana">15. Santos MV, Elias CN, Cavalcanti Lima JH. The effects of superficial roughness and <i>design</i> on the primary stability of dental implants. Clin Implant Dent Relat Res. 2009 Sep 9. Epub ahead of print.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086189&pid=S1984-5960201000010000700015&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">16. Schouten C, Meijer GJ, van den Beucken JJ, Spauwen PH, Jansen JA. Effects of implant geometry, surface properties, and TGF&#45;beta1 on peri&#45;implant bone response: an experimental study in goats. Clin Oral Implants Res. 2009;20(4):421&#45;9.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086191&pid=S1984-5960201000010000700016&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">17. Sennerby L, Meredith N. Implant stability measurements using resonance frequency analysis: biological and biomechanical aspects and clinical implications. Periodontol 2000. 2008;47:51&#45;66.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086193&pid=S1984-5960201000010000700017&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">18. Sennerby L, Roos J. Surgical determinants of clinical success of osseointegrated oral implants: a review of the literature. Int J Prosthodont. 1998;11(5):408&#45;20.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086195&pid=S1984-5960201000010000700018&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p><font size="2" face="Verdana">19. Sullivan DY, Sherwood RL, Collins TA, Krogh PH. The reverse&#45;torque test: a clinical report. Int J Oral Maxillofac Implants. 1996;11(2):179&#45;85.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=086197&pid=S1984-5960201000010000700019&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>     ]]></body>
<body><![CDATA[<p>&nbsp;</p>     <p>&nbsp;</p>     <p><font size="2" face="Verdana"><a name="nt"></a><a href="#tx"><img src="/img/revistas/iij/v5n1/seta.jpg" border="0"></a> <B>Endere&ccedil;o para correspond&ecirc;ncia:</B>    <br> F&aacute;bio Bezerra    <br>   Rua Almeida Garret, 57    <br>   Itaigara    <br>   41815&#45;320 &#45; Salvador &#150; Bahia &#45; Brasil    <br> E&#45;mail: <a href="mailto:fabiobezerra@cenior.com.br">fabiobezerra@cenior.com.br</a></font></p>     <p><font size="2" face="Verdana">Recebido: 05/03/2010    <br>   Aceito:  09/04/2010</font></p>     ]]></body>
<body><![CDATA[ ]]></body>
<back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abuhussein]]></surname>
<given-names><![CDATA[H]]></given-names>
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<article-title xml:lang="en"><![CDATA[The effect of thread pattern upon implant osseointegration]]></article-title>
<source><![CDATA[Clin Oral Implants Res]]></source>
<year>2010</year>
<volume>21</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>129-36</page-range></nlm-citation>
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<source><![CDATA[Int J Prosthodont]]></source>
<year>2004</year>
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<surname><![CDATA[Lang]]></surname>
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