<?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>1870-199X</journal-id>
<journal-title><![CDATA[Revista odontológica mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Odont. Mex]]></abbrev-journal-title>
<issn>1870-199X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Odontología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-199X2022000200038</article-id>
<article-id pub-id-type="doi">10.22201/fo.1870199xp.2022.26.2.87314</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Asociación del índice CPOD y pH salival de estudiantes fumadores y no fumadores de la Universidad Católica Santiago de Guayaquil]]></article-title>
<article-title xml:lang="en"><![CDATA[Association of the DMFT Index to the Salivary pH Levels of Smoking and Non-Smoking Students of the Universidad Católica Santiago de Guayaquil]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Iturralde Célleri]]></surname>
<given-names><![CDATA[Carola Daniela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Altamirano Vergara]]></surname>
<given-names><![CDATA[Norka Marcela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Perugachi Benalcázar]]></surname>
<given-names><![CDATA[Alex]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Católica de Santiago de Guayaquil  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Católica de Santiago de Guayaquil Facultad de Ciencias Médicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guayaquil Facultad de Ciencias Médicas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2022</year>
</pub-date>
<volume>26</volume>
<numero>2</numero>
<fpage>38</fpage>
<lpage>45</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-199X2022000200038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-199X2022000200038&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-199X2022000200038&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción: la caries dental es una enfermedad de etiología multifactorial; y la saliva es el primer fluido biológico en exponerse a los componentes nocivos del tabaco; por lo que su exposición producirá cambios a nivel del pH salival.  Objetivo:  analizar la asociación del índice de dientes cariados, perdidos u obturados (CPOD), con los niveles de pH bucal de estudiantes fumadores y no fumadores, para determinar la relación entre el hábito de fumar y la prevalencia de afecciones dentales.  Materiales y métodos:  estudio de caso y control de muestreo aleatorio simple, con sujetos jóvenes fumadores y no fumadores de la carrera de odontología de la UCSG, con buenos hábitos de higiene y sin presencia de enfermedades sistémicas. A los grupos de estudio se les realizó inspecciones clínicas para determinar el índice CPOD y se midió el nivel de pH salival no estimulado con tirillas de la marca Macherey-Nagel®.  Resultados:  el estudio analizó a 237 personas con buena higiene bucal, mediante el test de chi-cuadrado, encontrando que los fumadores tenían un pH bucal más bajo y un índice CPOD ligeramente más alto en comparación con los no fumadores. Aunque la asociación entre el índice CPOD y el hábito de fumar no fue estadísticamente significativa (p-valor 0.07), se demostró una relación significativa entre fumar tabaco y el aumento de la acidez bucal (p-valor &lt; 0.001). Estos hallazgos resaltan la importancia de considerar los efectos negativos del tabaquismo en la salud oral, particularmente en la acidez bucal.  Conclusiones: los niveles de pH salival de los fumadores son moderadamente más ácidos. Sin embargo, estadísticamente, esta condición de acidez no es determinante para establecer la correlación entre fumar y un aumento del índice CPOD.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction: Dental caries is a disease of multifactorial etiology; and saliva is the first biological fluid to be exposed to the harmful components of tobacco; therefore, its exposure will produce changes of the salivary pH level in the oral cavity.  Objective: To analyze the association of the decayed, missed or filled teeth index (DMFT) with the oral pH levels in smoking and non-smoking students, in order to , to determine the relationship between smoking and the prevalence of dental conditions.  Materials and methods:  A case-control study of simple random sampling, with young smokers and non-smokers from the UCSG Dentistry course, with good hygiene habits and without the presence of systemic diseases. The study groups underwent clinical inspections to determine the DMFT index and the unstimulated salivary pH level was measured with Macherey-Nagel® brand strips.  Results: The study analyzed 237 individuals with good oral hygiene using the chi-square test, finding that smokers had a lower oral pH and slightly higher DMFT index compared to non-smokers. Although the association between the DMFT index and smoking habit was not statistically significant (p-value 0.07), a significant relationship between tobacco smoking and increased oral acidity was demonstrated (p-value &lt; 0.001). These findings highlight the importance of considering the negative effects of smoking on oral health, particularly on oral acidity.  Conclusions: The salivary pH levels of smokers is moderately more acidic. However, statistically, this acidity condition is not decisive to establish the correlation between smoking and an increase of the DMFT index.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[índice CPOD]]></kwd>
<kwd lng="es"><![CDATA[índice pH salival]]></kwd>
<kwd lng="es"><![CDATA[fumadores]]></kwd>
<kwd lng="es"><![CDATA[tabaco]]></kwd>
<kwd lng="en"><![CDATA[DMFT index]]></kwd>
<kwd lng="en"><![CDATA[salivary pH index]]></kwd>
<kwd lng="en"><![CDATA[smokers]]></kwd>
<kwd lng="en"><![CDATA[tobacco]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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