<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1646-2890</journal-id>
<journal-title><![CDATA[Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Port Estomatol Med Dent Cir Maxilofac]]></abbrev-journal-title>
<issn>1646-2890</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Estomatologia e Medicina Dentária]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1646-28902020000100010</article-id>
<article-id pub-id-type="doi">10.24873/j.rpemd.2020.03.693</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[The prevalence of periodontal diseases in Portugal and correspondent digital awareness for the period 2004-2017: analysis of data from Global Burden of Disease and Google Trends]]></article-title>
<article-title xml:lang="pt"><![CDATA[A prevalência de doenças periodontais em Portugal e perceção digital nacional para o período 2004-2017: análise de dados do Global Burdenof Disease e GoogleTrends]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Machado]]></surname>
<given-names><![CDATA[Vanessa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Botelho]]></surname>
<given-names><![CDATA[Joao]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Neves]]></surname>
<given-names><![CDATA[JoaoAlbernaz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Proenca]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgado]]></surname>
<given-names><![CDATA[Ana Sintra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendes]]></surname>
<given-names><![CDATA[José João]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Egas Moniz Egas Moniz Dental Clinic PeriodontologyDepartment]]></institution>
<addr-line><![CDATA[Portugal ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Universitário Egas Moniz Centro de Investigação Interdisciplinar Egas Moniz ClinicalResearch Unit]]></institution>
<addr-line><![CDATA[Almada ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Egas Moniz Quantitative Methods for Health Research Unit ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Portugal</country>
</aff>
<pub-date pub-type="pub">
<day>30</day>
<month>03</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>30</day>
<month>03</month>
<year>2020</year>
</pub-date>
<volume>61</volume>
<numero>1</numero>
<fpage>10</fpage>
<lpage>16</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S1646-28902020000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S1646-28902020000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S1646-28902020000100010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Objectives: The progression of periodontal diseases at the Portuguese national level and its public awareness are of great interest, mainly due to the high burden of periodontitis. We aimed to evaluate the progression of the prevalence of periodontal diseases in Portugal and correspondent public awareness, between 2004 and 2017, by using data from the Global Burden of Disease, the Portuguese Directorate-General of Health andGoogleR Trends.  Methods: Portuguese national data of periodontal disease prevalence in the period 2004-2017 were searched in the Global Burden of Disease tools of the Institute for Health Metrics and Evaluation and the Portuguese Directorate-General of Health. For data on public awareness, theGoogleR Trends comparison tool was used to study the trends of the Portuguese words for &#8220;Periodontitis,&#8221; &#8220;Gingivitis,&#8221; &#8220;Gums&#8221; and &#8220;Periodontal disease.&#8221;  Results: Overall, the prevalence of periodontitis increased slightly from 11.3% to 11.7%, according to the Global Burden of Disease. During 2004-2017, the GoogleR Trends search term &#8220;Gums&#8221; was the most relevant. It increased steadily over time while the search term &#8220;Periodontal disease&#8221; decreased, and these search trends were significantly correlated (&#961;=-0.670;P=0.009). Additionally, GoogleR Trends search term &#8220;Gingivitis&#8221; was significantly negatively correlated (&#961;=-0.537;P=0.048), over time, with Global Burden of Disease data. Portuguese netizens predominantly tend to search for non-medical terms like &#8220;Gums&#8221; over more scientific terms like &#8220;Gingivitis,&#8221; &#8220;Periodontitis&#8221; or &#8220;Periodontal disease.&#8221;  Conclusions: Despite periodontal diseases in Portugal being continuously increasing and above the world average, GoogleR Trends data show an apparent oral medical illiteracy related to periodontal diseases in the Portuguese population. However, digital awareness of periodontal diseases increased over time.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo  Objetivos: A progressão das doenças periodontais ao nível nacional de Portugal e a sua consciencialização pública são de grande interesse, principalmente devido ao elevado impacto da periodontite. O nosso objetivo foi avaliar a progressão da prevalência de doenças periodontais em Portugal e a consciencialização do público correspondente, entre 2004 e 2017, usando dados do GlobalBurden of Disease, Direção Geral de Saúde e Google® Trends.  Métodos: Para o período 2004-2017, foram pesquisados dados nacionais portugueses da prevalência de doenças periodontais no Institute forHealth Metricsand Evaluationof Global Burdenof Disease e Direção Geral de Saúde e, para consciencialização do público, ferramenta de comparação do Google® Trends para as palavras em português para &#8220;Periodontite&#8221;, &#8220;Gengivite&#8221;, foram utilizadas as tendências &#8220;gengivas&#8221; e &#8220;doença periodontal&#8221;.  Resultados: A prevalência geral de periodontite aumentou levemente de 11,3% para 11,7%, de acordo com o Global Burdenof Disease. Durante 2004-2017, o termo de pesquisa Google®Trends &#8220;Gengivas&#8221; foi o mais relevante. Aumentou constantemente ao longo do tempo, enquanto o termo de pesquisa &#8220;Doença periodontal&#8221; diminuiu, sendo essas tendências de pesquisa significativamente correlacionadas (&#961;=-0,670; P=0,009). Além disso, o termo de pesquisa Google®Trends &#8220;Gengivite&#8221; foi significativamente correlacionado negativamente (&#961;=-0,537; P=0,048), ao longo do tempo, com dados do Global Burdenof Disease. Osinternautasportugueses tendem predominantemente a procurar termos não médicos como &#8220;Gengivas&#8221;em vez de termos mais científicos como &#8220;Gengivite&#8221;, &#8220;Periodontite&#8221; ou &#8220;Doença periodontal&#8221;.  Conclusões: Apesar das doenças periodontais em Portugal crescerem continuamente e acima da média mundial, os dados do Google® Trends mostram um aparente analfabetismo médico oral relacionado a doenças periodontais na população portuguesa. No entanto, a consciencialização digital para doenças periodontais aumentou com o tempo.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Burden of Disease]]></kwd>
<kwd lng="en"><![CDATA[Google Trends]]></kwd>
<kwd lng="en"><![CDATA[Medical illiteracy]]></kwd>
<kwd lng="en"><![CDATA[Public awareness]]></kwd>
<kwd lng="en"><![CDATA[Periodontal diseases]]></kwd>
<kwd lng="en"><![CDATA[Periodontitis]]></kwd>
<kwd lng="pt"><![CDATA[GlobalBurden of Disease]]></kwd>
<kwd lng="pt"><![CDATA[Google Trends]]></kwd>
<kwd lng="pt"><![CDATA[Iliteracia medica]]></kwd>
<kwd lng="pt"><![CDATA[Consciencialização publica]]></kwd>
<kwd lng="pt"><![CDATA[Doenças periodontais]]></kwd>
<kwd lng="pt"><![CDATA[Periodontite]]></kwd>
</kwd-group>
</article-meta>
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