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A structural equation model to investigate the impact of missing occlusal units on objective masticatory function in patients with shortened dental arches

Identifieur interne : 004A30 ( Main/Merge ); précédent : 004A29; suivant : 004A31

A structural equation model to investigate the impact of missing occlusal units on objective masticatory function in patients with shortened dental arches

Auteurs : K. Fueki [Japon] ; E. Yoshida [Japon] ; Y. Igarashi [Japon]

Source :

RBID : ISTEX:3D3F1F65CB6F98AD521D13C4F646A4FC0D9A54F2

Descripteurs français

English descriptors

Abstract

Summary  The aim of this study was to investigate the impact of missing occlusal units (MOUs) on objective masticatory function with respect to food comminuting and mixing ability. Sixty partially dentate patients (mean age, 64·1 years) with shortened dental arches participated in the study. Food comminuting ability was assessed using a masticatory performance test with peanuts as a test food. Food mixing ability was assessed using a mixing ability test with a two‐coloured wax cube. Maximum bite force (MBF) was measured using a pressure‐sensitive film as a mediator for food comminuting and mixing ability. A structural equation model was constructed based on a hypothesis that MOUs would be associated with reduced MBF and impairment of food comminuting and mixing ability. Structural equation modelling analysis found significant direct effects of MOU on median particle size and mixing ability index (MAI) (P < 0·001). In addition, MOU had significant indirect effects on median particle size and MAI with MBF as a mediator (P < 0·05). These results suggest that decrease in occlusal platform area and reduced MBF because of MOUs are associated with the impairment of food comminution and mixing in patients with shortened dental arches.

Url:
DOI: 10.1111/j.1365-2842.2011.02225.x

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ISTEX:3D3F1F65CB6F98AD521D13C4F646A4FC0D9A54F2

Le document en format XML

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<div type="abstract">Summary  The aim of this study was to investigate the impact of missing occlusal units (MOUs) on objective masticatory function with respect to food comminuting and mixing ability. Sixty partially dentate patients (mean age, 64·1 years) with shortened dental arches participated in the study. Food comminuting ability was assessed using a masticatory performance test with peanuts as a test food. Food mixing ability was assessed using a mixing ability test with a two‐coloured wax cube. Maximum bite force (MBF) was measured using a pressure‐sensitive film as a mediator for food comminuting and mixing ability. A structural equation model was constructed based on a hypothesis that MOUs would be associated with reduced MBF and impairment of food comminuting and mixing ability. Structural equation modelling analysis found significant direct effects of MOU on median particle size and mixing ability index (MAI) (P < 0·001). In addition, MOU had significant indirect effects on median particle size and MAI with MBF as a mediator (P < 0·05). These results suggest that decrease in occlusal platform area and reduced MBF because of MOUs are associated with the impairment of food comminution and mixing in patients with shortened dental arches.</div>
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<term>Standardised</term>
<term>Standardised parameter estimates</term>
<term>Standardised root</term>
<term>Structural equation model</term>
<term>Test food</term>
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<div type="abstract">Summary  The aim of this study was to investigate the impact of missing occlusal units (MOUs) on objective masticatory function with respect to food comminuting and mixing ability. Sixty partially dentate patients (mean age, 64·1 years) with shortened dental arches participated in the study. Food comminuting ability was assessed using a masticatory performance test with peanuts as a test food. Food mixing ability was assessed using a mixing ability test with a two‐coloured wax cube. Maximum bite force (MBF) was measured using a pressure‐sensitive film as a mediator for food comminuting and mixing ability. A structural equation model was constructed based on a hypothesis that MOUs would be associated with reduced MBF and impairment of food comminuting and mixing ability. Structural equation modelling analysis found significant direct effects of MOU on median particle size and mixing ability index (MAI) (P < 0·001). In addition, MOU had significant indirect effects on median particle size and MAI with MBF as a mediator (P < 0·05). These results suggest that decrease in occlusal platform area and reduced MBF because of MOUs are associated with the impairment of food comminution and mixing in patients with shortened dental arches.</div>
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<name sortKey="Fueki, K" sort="Fueki, K" uniqKey="Fueki K" first="K" last="Fueki">K. Fueki</name>
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<nlm:affiliation>Section of Removable Partial Denture Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan. kunfu.rpro@tmd.ac.jp</nlm:affiliation>
<country xml:lang="fr">Japon</country>
<wicri:regionArea>Section of Removable Partial Denture Prosthodontics, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo</wicri:regionArea>
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<name sortKey="Yoshida, E" sort="Yoshida, E" uniqKey="Yoshida E" first="E" last="Yoshida">E. Yoshida</name>
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<name sortKey="Igarashi, Y" sort="Igarashi, Y" uniqKey="Igarashi Y" first="Y" last="Igarashi">Y. Igarashi</name>
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<title level="j">Journal of oral rehabilitation</title>
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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Arachis</term>
<term>Bite Force</term>
<term>Dental Arch (physiopathology)</term>
<term>Female</term>
<term>Food</term>
<term>Humans</term>
<term>Jaw, Edentulous, Partially (physiopathology)</term>
<term>Male</term>
<term>Mastication (physiology)</term>
<term>Middle Aged</term>
<term>Models, Statistical</term>
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<term>Waxes</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Aliments</term>
<term>Arachis</term>
<term>Arcade dentaire (physiopathologie)</term>
<term>Cires</term>
<term>Femelle</term>
<term>Force occlusale</term>
<term>Humains</term>
<term>Mastication (physiologie)</term>
<term>Modèles statistiques</term>
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<term>Mâle</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Taille de particule</term>
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<term>Waxes</term>
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<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr">
<term>Mastication</term>
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<keywords scheme="MESH" qualifier="physiology" xml:lang="en">
<term>Mastication</term>
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<keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr">
<term>Arcade dentaire</term>
<term>Mâchoire partiellement édentée</term>
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<term>Dental Arch</term>
<term>Jaw, Edentulous, Partially</term>
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<term>Adult</term>
<term>Aged</term>
<term>Aged, 80 and over</term>
<term>Arachis</term>
<term>Bite Force</term>
<term>Female</term>
<term>Food</term>
<term>Humans</term>
<term>Male</term>
<term>Middle Aged</term>
<term>Models, Statistical</term>
<term>Particle Size</term>
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<term>Adulte</term>
<term>Adulte d'âge moyen</term>
<term>Aliments</term>
<term>Arachis</term>
<term>Cires</term>
<term>Femelle</term>
<term>Force occlusale</term>
<term>Humains</term>
<term>Modèles statistiques</term>
<term>Mâle</term>
<term>Sujet âgé</term>
<term>Sujet âgé de 80 ans ou plus</term>
<term>Taille de particule</term>
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<front>
<div type="abstract" xml:lang="en">The aim of this study was to investigate the impact of missing occlusal units (MOUs) on objective masticatory function with respect to food comminuting and mixing ability. Sixty partially dentate patients (mean age, 64·1 years) with shortened dental arches participated in the study. Food comminuting ability was assessed using a masticatory performance test with peanuts as a test food. Food mixing ability was assessed using a mixing ability test with a two-coloured wax cube. Maximum bite force (MBF) was measured using a pressure-sensitive film as a mediator for food comminuting and mixing ability. A structural equation model was constructed based on a hypothesis that MOUs would be associated with reduced MBF and impairment of food comminuting and mixing ability. Structural equation modelling analysis found significant direct effects of MOU on median particle size and mixing ability index (MAI) (P < 0·001). In addition, MOU had significant indirect effects on median particle size and MAI with MBF as a mediator (P < 0·05). These results suggest that decrease in occlusal platform area and reduced MBF because of MOUs are associated with the impairment of food comminution and mixing in patients with shortened dental arches.</div>
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