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Maxillary distal-extension removable partial denture abutments with reduced periodontal support.

Identifieur interne : 003A00 ( PubMed/Checkpoint ); précédent : 003999; suivant : 003A01

Maxillary distal-extension removable partial denture abutments with reduced periodontal support.

Auteurs : T. Berg [États-Unis] ; A A Caputo

Source :

RBID : pubmed:8410732

Descripteurs français

English descriptors

Abstract

An in vitro study that used photoelastic models compared stress distribution characteristics of three maxillary, bilateral, distal-extension removable partial denture designs when the abutments were subjected to a progressive loss of periodontal support. One design used I-bar retention, a second design used a semiprecision, spring-loaded plunger attachment, and a third design used the ERA attachment. Both attachment designs were tested with and without splinted abutments. The ERA design was also tested with and without supporting rests and included light and heavy retention elements. Periodontal support loss up to 35%, a 60/40 crown-to-root ratio, resulted in increased stress concentrations. The ERA design with supporting rests, light retention elements, and splinted abutments compared very favorably with the I-bar retained design on nonsplinted abutments.

PubMed: 8410732


Affiliations:


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pubmed:8410732

Le document en format XML

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<name sortKey="Berg, T" sort="Berg, T" uniqKey="Berg T" first="T" last="Berg">T. Berg</name>
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<nlm:affiliation>Section of Removable Prosthodontics, University of California, School of Dentistry, Los Angeles.</nlm:affiliation>
<country>États-Unis</country>
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<region type="state">Californie</region>
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<wicri:orgArea>Section of Removable Prosthodontics, University of California, School of Dentistry</wicri:orgArea>
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<term>Alveolar Bone Loss (physiopathology)</term>
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<term>Dental Stress Analysis (methods)</term>
<term>Denture Design</term>
<term>Denture Precision Attachment</term>
<term>Denture Retention (instrumentation)</term>
<term>Denture Retention (methods)</term>
<term>Denture, Partial, Removable</term>
<term>Humans</term>
<term>Jaw, Edentulous, Partially</term>
<term>Maxilla</term>
<term>Maxillary Diseases (physiopathology)</term>
<term>Periodontal Splints</term>
<term>Polarography</term>
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<term>Analyse du stress dentaire ()</term>
<term>Attachement de précision</term>
<term>Attelles parodontales</term>
<term>Biréfringence</term>
<term>Conception d'appareil de prothèse dentaire</term>
<term>Humains</term>
<term>Maladies du maxillaire supérieur (physiopathologie)</term>
<term>Maxillaire</term>
<term>Mâchoire partiellement édentée</term>
<term>Piliers dentaires</term>
<term>Polarographie</term>
<term>Prothèse dentaire partielle amovible</term>
<term>Résorption alvéolaire (physiopathologie)</term>
<term>Rétention d'appareil de prothèse dentaire ()</term>
<term>Rétention d'appareil de prothèse dentaire (instrumentation)</term>
</keywords>
<keywords scheme="MESH" qualifier="instrumentation" xml:lang="en">
<term>Denture Retention</term>
</keywords>
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<term>Dental Stress Analysis</term>
<term>Denture Retention</term>
</keywords>
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<term>Maladies du maxillaire supérieur</term>
<term>Résorption alvéolaire</term>
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<term>Alveolar Bone Loss</term>
<term>Maxillary Diseases</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Birefringence</term>
<term>Dental Abutments</term>
<term>Denture Design</term>
<term>Denture Precision Attachment</term>
<term>Denture, Partial, Removable</term>
<term>Humans</term>
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<div type="abstract" xml:lang="en">An in vitro study that used photoelastic models compared stress distribution characteristics of three maxillary, bilateral, distal-extension removable partial denture designs when the abutments were subjected to a progressive loss of periodontal support. One design used I-bar retention, a second design used a semiprecision, spring-loaded plunger attachment, and a third design used the ERA attachment. Both attachment designs were tested with and without splinted abutments. The ERA design was also tested with and without supporting rests and included light and heavy retention elements. Periodontal support loss up to 35%, a 60/40 crown-to-root ratio, resulted in increased stress concentrations. The ERA design with supporting rests, light retention elements, and splinted abutments compared very favorably with the I-bar retained design on nonsplinted abutments.</div>
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<Title>The Journal of prosthetic dentistry</Title>
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<ArticleTitle>Maxillary distal-extension removable partial denture abutments with reduced periodontal support.</ArticleTitle>
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<AbstractText>An in vitro study that used photoelastic models compared stress distribution characteristics of three maxillary, bilateral, distal-extension removable partial denture designs when the abutments were subjected to a progressive loss of periodontal support. One design used I-bar retention, a second design used a semiprecision, spring-loaded plunger attachment, and a third design used the ERA attachment. Both attachment designs were tested with and without splinted abutments. The ERA design was also tested with and without supporting rests and included light and heavy retention elements. Periodontal support loss up to 35%, a 60/40 crown-to-root ratio, resulted in increased stress concentrations. The ERA design with supporting rests, light retention elements, and splinted abutments compared very favorably with the I-bar retained design on nonsplinted abutments.</AbstractText>
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