<?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>0121-246X</journal-id>
<journal-title><![CDATA[Revista Facultad de Odontología Universidad de Antioquia]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Fac Odontol Univ Antioq]]></abbrev-journal-title>
<issn>0121-246X</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Antioquia ]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-246X2018000200014</article-id>
<article-id pub-id-type="doi">10.17533/udea.rfo.v30n1a2</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[CLINICAL AND RADIOGRAPHIC EVALUATION OF IMPLANT-SUPPORTED MANDIBULAR OVERDENTURES SUBJECTED TO IMMEDIATE LOADING. A 36-MONTH FOLLOW-UP]]></article-title>
<article-title xml:lang="es"><![CDATA[EVALUACIÓN CLÍNICA Y RADIOGRÁFICA DE IMPLANTES REHABILITADOS CON SOBREDENTADURAS MANDIBULARES Y SOMETIDOS A CARGA INMEDIATA. 36 MESES DE OBSERVACIÓN]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ARISTIZÁBAL-HOYOS]]></surname>
<given-names><![CDATA[JUAN ALBERTO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ZÚÑIGA-DÍAZ]]></surname>
<given-names><![CDATA[DIEGO FERNANDO]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[CHACÓN-ARBOLEDA]]></surname>
<given-names><![CDATA[PAULA TATIANA]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Manizales  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma de Manizales  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Manizales  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>30</volume>
<numero>1</numero>
<fpage>14</fpage>
<lpage>23</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-246X2018000200014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-246X2018000200014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-246X2018000200014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT.  Introduction: the aim of this study was to clinically and radiographically evaluate 54 implant-supported mandibular overdentures under the protocol of immediate loading, using a retention system with ball attachments. This evaluation was performed within 36 months of function of the implants.  Methods:  observational descriptive study in 27 fully edentulous patients who were evaluated in a 36-months follow-up period, after having two internal connection implants placed in the interforaminal area of the lower maxilla. The implants were evaluated in terms of survival rate, amount of peri-implant bone loss, condition of peri-implant tissues, prosthesis behavior, and degree of patient satisfaction.  Results:  survival rate at 36 months was 98.1% and the average radiographic bone loss was 0.45 mm (SD 0.6); there was a low level of plaque and average probing depth was 1.75 ± 0.75 mm. 57% of prosthesis showed active retention. 43% did not show retention or it was provided by one of its elements. 53.8% of overdentures were stable. A high percentage of patients showed total satisfaction.  Conclusion:  in a 36-months follow-up, a mandibular overdenture with ball attachments placed on two non-splinted implants immediately loaded is a predictable treatment in patients with fully edentulous lower maxilla, with high implant survival rates, low levels of peri-implant bone loss, and a high degree of patient satisfaction.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  el objetivo de este estudio consistió en evaluar clínica y radiográficamente, después de 36 meses de función, 54 implantes colocados en el maxilar inferior y rehabilitados con sobredentaduras bajo el protocolo de carga inmediata, utilizando un sistema de retención tipo bola.  Métodos:  estudio observacional descriptivo que consideró 27 pacientes totalmente desdentados que fueron evaluados en un seguimiento a 36 meses, luego de haber recibido cada uno dos implantes de conexión interna, instalados en la región interforaminal del maxilar inferior. Los implantes fueron evaluados en términos de supervivencia, cantidad de pérdida ósea periimplantar, estado de los tejidos periimplantares, comportamiento de la prótesis y grado de satisfacción de los pacientes.  Resultados:  la tasa de supervivencia a los 36 meses fue de 98,1%, el promedio de pérdida ósea radiográfica fue de 0,45 mm (DE 0,6); se presentó un nivel de placa bajo y el promedio de profundidad al sondaje fue de 1,75 ± 0,75 mm. El 57% de las prótesis presentaron retención activa. El 43% no presentó retención, o su retención estaba dada por uno solo de sus elementos. El 53,8% de las sobredentaduras se encontraron estables. Un alto porcentaje de los pacientes manifestaron satisfacción total.  Conclusión:  a 36 meses de observación, una sobredentadura mandibular retenida por pilares en bola colocada sobre dos implantes no ferulizados y cargados inmediatamente es un tratamiento predecible en pacientes con desdentación total inferior, con una alta tasa de supervivencia de los implantes, bajos niveles de pérdida ósea periimplantar y alto grado de satisfacción de los pacientes.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[edentulous maxilla]]></kwd>
<kwd lng="en"><![CDATA[implants]]></kwd>
<kwd lng="en"><![CDATA[osseointegration]]></kwd>
<kwd lng="en"><![CDATA[peri-implantitis]]></kwd>
<kwd lng="en"><![CDATA[edentulous jaw]]></kwd>
<kwd lng="en"><![CDATA[bone resorption]]></kwd>
<kwd lng="es"><![CDATA[maxilares edéntulos]]></kwd>
<kwd lng="es"><![CDATA[implantes]]></kwd>
<kwd lng="es"><![CDATA[óseointegración]]></kwd>
<kwd lng="es"><![CDATA[periimplantitis]]></kwd>
<kwd lng="es"><![CDATA[mandíbula edéntula]]></kwd>
<kwd lng="es"><![CDATA[reabsorción ósea]]></kwd>
</kwd-group>
</article-meta>
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