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Posterior occlusal support and bite force influence on the mandibular position.

Identifieur interne : 007C49 ( Main/Exploration ); précédent : 007C48; suivant : 007C50

Posterior occlusal support and bite force influence on the mandibular position.

Auteurs : Takeshi Kozawa [Japon] ; Yoshimasa Igarashi ; Shuichiro Yamashita

Source :

RBID : pubmed:12705037

Descripteurs français

English descriptors

Abstract

Three-dimensional mandibular displacement related to loss of posterior occlusal support was investigated. Five subjects, whose mandibular premolars and molars needed to be restored, were selected. Their experimental prostheses were removed in sequence from the most posterior to anterior. The more the absence of posterior occlusal support increased, the more condylar displacements were increased. On the other hand, maximum bite forces were decreased, by removing each prosthesis in sequence from posterior to anterior. These results suggest that condylar position would be easily displaced with low level bite force following loss of posterior occlusal support.

PubMed: 12705037


Affiliations:


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Le document en format XML

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<nlm:affiliation>Department of Removable Prosthodontics, Matsumoto Dental University, 1780 Hirooka-Gobara, Shiojiri, Nagano 399-0781, Japan.</nlm:affiliation>
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<term>Bite Force</term>
<term>Dental Occlusion, Traumatic (etiology)</term>
<term>Female</term>
<term>Humans</term>
<term>Jaw, Edentulous, Partially (complications)</term>
<term>Jaw, Edentulous, Partially (physiopathology)</term>
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<term>Middle Aged</term>
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<term>Adulte d'âge moyen</term>
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<term>Femelle</term>
<term>Force occlusale</term>
<term>Humains</term>
<term>Molaire (physiologie)</term>
<term>Mâchoire partiellement édentée ()</term>
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<div type="abstract" xml:lang="en">Three-dimensional mandibular displacement related to loss of posterior occlusal support was investigated. Five subjects, whose mandibular premolars and molars needed to be restored, were selected. Their experimental prostheses were removed in sequence from the most posterior to anterior. The more the absence of posterior occlusal support increased, the more condylar displacements were increased. On the other hand, maximum bite forces were decreased, by removing each prosthesis in sequence from posterior to anterior. These results suggest that condylar position would be easily displaced with low level bite force following loss of posterior occlusal support.</div>
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