<?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>0034-7507</journal-id>
<journal-title><![CDATA[Revista Cubana de Estomatología]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cubana Estomatol]]></abbrev-journal-title>
<issn>0034-7507</issn>
<publisher>
<publisher-name><![CDATA[Editorial Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-75072022000400008</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cambios en el pH salival de pacientes con ortodoncia fija, tras la aplicación de dos tipos de enjuagues bucales]]></article-title>
<article-title xml:lang="en"><![CDATA[Changes in salivary pH in patients with fixed orthodontics following the use of two types of mouthwashes]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Monges López]]></surname>
<given-names><![CDATA[Andrea Liliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Núñez Mongelós]]></surname>
<given-names><![CDATA[Claudia Larissa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabañas Pereira]]></surname>
<given-names><![CDATA[Simón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Adorno]]></surname>
<given-names><![CDATA[Carlos G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Asunción Facultad de Odontología ]]></institution>
<addr-line><![CDATA[ Asunción]]></addr-line>
<country>Paraguay</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>59</volume>
<numero>4</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S0034-75072022000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S0034-75072022000400008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S0034-75072022000400008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción: Los enjuagues bucales contribuyen a la inhibición de la formación de la placa bacteriana y, por tanto, pueden ayudar a mantener el pH salival cercano a neutro.  Objetivo:  Identificar cambios en el pH salival de pacientes portadores de aparatología ortodóncica fija, después del enjuague con una solución de Stevia rebaudiana Bertoni y un enjuague comercial de aceites esenciales.  Métodos:  Se realizó un experimento clínico con un diseño factorial mixto en pacientes portadores de aparatología ortodóncica fija. Una vez firmado el consentimiento informado, treinta y dos pacientes fueron asignados aleatoriamente a uno de 2 grupos: la solución de S. rebaudiana B. al 2 % o un enjuague comercial de aceites esenciales. Se utilizaron 15 ml de enjuague durante 60 s en todos los pacientes. El pH salival fue medido por dos observadores independientes calibrados, utilizando papel medidor de pH antes del enjuague (medición basal) y después del enjuague, a los 5 y 20 min. Los datos fueron analizados mediante el ANOVA mixto.  Resultados: Se encontró una interacción estadísticamente significativa entre el tipo de tratamiento y el momento de medición del pH. Los pH medio de los grupos S. rebaudiana y aceites esenciales fueron respectivamente en la medición basal: 6,61 y 6,52 (p = 0,72); a los 5 min: 7,61 y 7,77 (p = 0,40); y a los 20 min: 7,72 y 6,82 (p &lt; 0,001).  Conclusiones: Ambos enjuagues tenían el efecto de aumentar el pH salival a niveles alcalinos a los 5 min, pero solo el enjuague de S. rebaudiana B. al 2 % mantuvo el pH básico a los 20 min.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction: Mouthwashes contribute to the inhibition of bacterial plaque formation and, therefore, may help to maintain salivary pH close to neutral.  Objective:  To identify changes in salivary pH in patients with fixed orthodontics after using a Stevia rebaudiana Bertoni solution and a commercial essential oil mouthwash.  Methods:  A clinical experiment with a mixed factorial design was carried out in patients with fixed orthodontic appliances. Once informed consent was signed, thirty-two patients were randomly assigned to one of 2 groups: 2 % S. rebaudiana B. solution or a commercial essential oil mouthwash. Fifteen ml of mouthwash was used for 60 s in all patients. Salivary pH was measured by two independent calibrated observers using pH-measuring paper before rinsing (basal measurement) and after rinsing, after 5 and 20 min. The data were analyzed by mixed ANOVA.  Results:  A statistically significant interaction was found between the type of treatment and the time of pH measurement. The medium pH of the S. rebaudiana and essential oil groups were respectively as per basal measurement: 6.61 and 6.52 (p = 0.72); after 5 min: 7.61 and 7.77 (p = 0.40); and after 20 min: 7.72 and 6.82 (p &lt; 0.001).  Conclusions:  Both mouthwashes had the effect of increasing salivary pH to alkaline levels after 5 min, but only the 2 % S. rebaudiana B. mouthwash maintained the basic pH after 20 min.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Stevia]]></kwd>
<kwd lng="es"><![CDATA[saliva]]></kwd>
<kwd lng="es"><![CDATA[aparatos ortodóncicos fijos]]></kwd>
<kwd lng="es"><![CDATA[enjuague bucal]]></kwd>
<kwd lng="en"><![CDATA[Stevia]]></kwd>
<kwd lng="en"><![CDATA[saliva]]></kwd>
<kwd lng="en"><![CDATA[fixed orthodontic appliances]]></kwd>
<kwd lng="en"><![CDATA[mouthwash]]></kwd>
</kwd-group>
</article-meta>
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