<?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>1029-3019</journal-id>
<journal-title><![CDATA[MEDISAN]]></journal-title>
<abbrev-journal-title><![CDATA[MEDISAN]]></abbrev-journal-title>
<issn>1029-3019</issn>
<publisher>
<publisher-name><![CDATA[Centro Provincial de Información de Ciencias Médicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1029-30192022000100070</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Aplicación del láser de baja potencia para el alivio del dolor en pacientes con tratamiento ortodóncico]]></article-title>
<article-title xml:lang="en"><![CDATA[Application of low power laser for pain relief in patients with orthodontic treatment]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lozada García]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cañete Revé]]></surname>
<given-names><![CDATA[Tania]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Naranjo García]]></surname>
<given-names><![CDATA[Ailen]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro García]]></surname>
<given-names><![CDATA[Rafael Benito]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Hospital General Docente Dr. Juan Bruno Zayas Alfonso  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Ciencias Médicas Facultad de Estomatología ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2022</year>
</pub-date>
<volume>26</volume>
<numero>1</numero>
<fpage>70</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S1029-30192022000100070&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S1029-30192022000100070&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S1029-30192022000100070&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  El dolor es el principal síntoma que refieren los pacientes después de la colocación y activación de los aparatos ortodóncicos.  Objetivo:  Evaluar la efectividad del láser de baja potencia en el alivio del dolor en pacientes con tratamiento de ortodoncia.  Métodos:  Se realizó un estudio cuasiexperimental de intervención terapéutica en 30 pacientes que se encontraban en los inicios de la fase de distalización de los caninos superiores (previa extracción de los primeros premolares de la misma arcada), los cuales fueron atendidos en el Servicio de Ortodoncia del Hospital General Docente Dr. Juan Bruno Zayas Alfonso de Santiago de Cuba, de enero a diciembre de 2020. A tal efecto, se conformaron 2 grupos de forma aleatoria, por el orden de llegada, de 15 integrantes cada uno: el de estudio, que fue tratado con láser de baja potencia, y el de control, que recibió paracetamol como analgésico habitual. Para la validación estadística de la información se emplearon el porcentaje y la prueba de la T de Student para muestras independientes, con 95 % de confiabilidad.  Resultados:  Existieron diferencias significativas en cuanto a la remisión de la intensidad del dolor, pues el síntoma estuvo ausente o en grado leve en todos los integrantes del grupo de estudio luego de tres sesiones terapéuticas (p=0,00), mientras que solo 13,3 % de los pacientes del grupo de control se ubicaron en estas dos categorías.  Conclusiones:  Se demostró que la terapia alternativa con láser fue más efectiva para paliar el dolor que el paracetamol.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The pain is the main symptom that patients refer after placing and activation of the orthodontic appliances.  Objective:  To evaluate the effectiveness of the low power laser for pain relief in patients with orthodontics treatment.  Methods:  A quasi-experiment study of therapeutic intervention was carried out in 30 patients that were in the beginnings of the distancing phase of the upper canine teeth (previous extraction of the same arch first premolars), who were assisted in the Orthodontics Service of Dr. Juan Bruno Zayas Alfonso Teaching General Hospital in Santiago de Cuba, from January to December, 2020. To such an effect, 2 groups were conformed at random, by arrival order, of 15 members each one: the study group that was treated with low power laser, and the control group that received paracetamol as usual analgesic. For the statistical validation of the information the percentage and the Student´s t test were used for independent samples, with 95% of confidence.  Results:  There were significant differences as for the remission of pain intensity, because absence of this symptom or light pain was observed in all the members of the study group after three therapeutic sessions (p=0.00) while just 13.3 % of the control group patients was located in these two categories.  Conclusions:  It was demonstrated that the alternative therapy with laser was more effective to palliate the pain than the paracetamol.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[láser de baja potencia]]></kwd>
<kwd lng="es"><![CDATA[movimiento dental]]></kwd>
<kwd lng="es"><![CDATA[dolor]]></kwd>
<kwd lng="es"><![CDATA[tratamiento ortodóntico]]></kwd>
<kwd lng="en"><![CDATA[low power laser]]></kwd>
<kwd lng="en"><![CDATA[dental movement]]></kwd>
<kwd lng="en"><![CDATA[pain]]></kwd>
<kwd lng="en"><![CDATA[orthodontic treatment]]></kwd>
</kwd-group>
</article-meta>
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