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A comparative study of mastication between complete denture wearers and dentate subjects.

Identifieur interne : 001E50 ( Ncbi/Curation ); précédent : 001E49; suivant : 001E51

A comparative study of mastication between complete denture wearers and dentate subjects.

Auteurs : C S Shi [République populaire de Chine] ; G. Ouyang ; T W Guo

Source :

RBID : pubmed:1791562

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English descriptors

Abstract

A computer system was used for simultaneously collecting and processing mandibular movements and the myoelectric activities of the masticatory muscles of 15 dentate subjects and 11 complete denture wearers. The displacement, velocity, cycle of mandibular movements, and the muscular mean potentials were indices in observing mastication. A good complete denture should perform with physiologic characteristics, and restore masticatory function and oral health. The kinetic energy from the velocities of lateral and vertical directions can serve for the chewing and comminution of food, but lateral comminution may affect denture retention. The mean myoelectrical potentials of the mandibular elevator muscles of complete denture wearers tend to increase at the opening phase; however, the potentials decrease at the closing phase.

PubMed: 1791562

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<nlm:affiliation>Department of Prosthodontics, Fourth Military Medical University, Stomatological College, Xian Shaanxi, People's Republic of China.</nlm:affiliation>
<country xml:lang="fr">République populaire de Chine</country>
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<name sortKey="Ouyang, G" sort="Ouyang, G" uniqKey="Ouyang G" first="G" last="Ouyang">G. Ouyang</name>
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<name sortKey="Guo, T W" sort="Guo, T W" uniqKey="Guo T" first="T W" last="Guo">T W Guo</name>
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<nlm:affiliation>Department of Prosthodontics, Fourth Military Medical University, Stomatological College, Xian Shaanxi, People's Republic of China.</nlm:affiliation>
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<title level="j">The Journal of prosthetic dentistry</title>
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<term>Adult</term>
<term>Analysis of Variance</term>
<term>Automatic Data Processing</term>
<term>Bite Force</term>
<term>Denture, Complete</term>
<term>Electromyography</term>
<term>Electrophysiology</term>
<term>Female</term>
<term>Humans</term>
<term>Jaw (physiology)</term>
<term>Jaw Relation Record</term>
<term>Male</term>
<term>Mastication (physiology)</term>
<term>Masticatory Muscles (physiology)</term>
<term>Microcomputers</term>
<term>Middle Aged</term>
<term>Mouth, Edentulous (physiopathology)</term>
<term>Movement</term>
<term>Range of Motion, Articular</term>
<term>Time Factors</term>
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<keywords scheme="KwdFr" xml:lang="fr">
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Amplitude articulaire</term>
<term>Analyse de variance</term>
<term>Bouche édentée (physiopathologie)</term>
<term>Enregistrement des rapports intermaxillaires</term>
<term>Facteurs temps</term>
<term>Femelle</term>
<term>Force occlusale</term>
<term>Humains</term>
<term>Mastication (physiologie)</term>
<term>Micro-ordinateurs</term>
<term>Mouvement</term>
<term>Muscles masticateurs (physiologie)</term>
<term>Mâchoire (physiologie)</term>
<term>Mâle</term>
<term>Prothèse dentaire complète</term>
<term>Traitement automatique des données</term>
<term>Électromyographie</term>
<term>Électrophysiologie</term>
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<term>Mastication</term>
<term>Muscles masticateurs</term>
<term>Mâchoire</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en">
<term>Jaw</term>
<term>Mastication</term>
<term>Masticatory Muscles</term>
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<keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr">
<term>Bouche édentée</term>
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<keywords scheme="MESH" qualifier="physiopathology" xml:lang="en">
<term>Mouth, Edentulous</term>
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<term>Adult</term>
<term>Analysis of Variance</term>
<term>Automatic Data Processing</term>
<term>Bite Force</term>
<term>Denture, Complete</term>
<term>Electromyography</term>
<term>Electrophysiology</term>
<term>Female</term>
<term>Humans</term>
<term>Jaw Relation Record</term>
<term>Male</term>
<term>Microcomputers</term>
<term>Middle Aged</term>
<term>Movement</term>
<term>Range of Motion, Articular</term>
<term>Time Factors</term>
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<keywords scheme="MESH" xml:lang="fr">
<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Amplitude articulaire</term>
<term>Analyse de variance</term>
<term>Enregistrement des rapports intermaxillaires</term>
<term>Facteurs temps</term>
<term>Femelle</term>
<term>Force occlusale</term>
<term>Humains</term>
<term>Micro-ordinateurs</term>
<term>Mouvement</term>
<term>Mâle</term>
<term>Prothèse dentaire complète</term>
<term>Traitement automatique des données</term>
<term>Électromyographie</term>
<term>Électrophysiologie</term>
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<div type="abstract" xml:lang="en">A computer system was used for simultaneously collecting and processing mandibular movements and the myoelectric activities of the masticatory muscles of 15 dentate subjects and 11 complete denture wearers. The displacement, velocity, cycle of mandibular movements, and the muscular mean potentials were indices in observing mastication. A good complete denture should perform with physiologic characteristics, and restore masticatory function and oral health. The kinetic energy from the velocities of lateral and vertical directions can serve for the chewing and comminution of food, but lateral comminution may affect denture retention. The mean myoelectrical potentials of the mandibular elevator muscles of complete denture wearers tend to increase at the opening phase; however, the potentials decrease at the closing phase.</div>
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