Is the goal of mastication reached in young dentates, aged dentates and aged denture wearers?
Identifieur interne : 001D53 ( Ncbi/Curation ); précédent : 001D52; suivant : 001D54Is the goal of mastication reached in young dentates, aged dentates and aged denture wearers?
Auteurs : Anne Mishellany-Dutour [France] ; Johanne Renaud ; Marie-Agnès Peyron ; Frank Rimek ; Alain WodaSource :
- The British journal of nutrition [ 0007-1145 ] ; 2008.
Descripteurs français
- KwdFr :
- Adulte, Adulte d'âge moyen, Appareils de prothèse dentaire, Arachis, Bouche édentée, Daucus carota, Denture, Femelle, Humains, Mastication (physiologie), Muscles masticateurs (physiologie), Mâle, Salivation (physiologie), Sujet âgé, Sujet âgé de 80 ans ou plus, Taille de particule, Vieillissement (physiologie), Électromyographie, Études cas-témoins.
- MESH :
- physiologie : Mastication, Muscles masticateurs, Salivation, Vieillissement.
- Adulte, Adulte d'âge moyen, Appareils de prothèse dentaire, Arachis, Bouche édentée, Daucus carota, Denture, Femelle, Humains, Mâle, Sujet âgé, Sujet âgé de 80 ans ou plus, Taille de particule, Électromyographie, Études cas-témoins.
English descriptors
- KwdEn :
- MESH :
Abstract
The objective of the present study was to assess the impact of age and dentition status on masticatory function. A three-arm case-control study was performed. Group 1 (n 14) was composed of young fully dentate subjects (age 35.6 +/- 10.6 years), group 2 (n 14) of aged fully dentate subjects (age 68.8 +/- 7.0 years) and group 3 (n 14) of aged full denture wearers (age 68.1 +/- 7.2 years). Mastication adaptation was assessed in the course of chewing groundnuts and carrots to swallowing threshold. Particle size distribution of the chewed food, electromyographic (EMG) activity of the masseter and temporalis muscles during chewing, and resting and stimulated whole saliva rates were measured. Aged dentate subjects used significantly more chewing strokes to reach swallowing threshold than younger dentate subjects (P < 0.05), with increased particle size reduction, longer chewing sequence duration (P < 0.05) and greater total EMG activity (P < 0.05) for both groundnuts and carrots. In addition, aged denture wearers made significantly more chewing strokes than aged dentate subjects (P < 0.001) to reach swallowing threshold for groundnuts. Particle size reduction at time of swallowing was significantly poorer for denture wearers than for their aged dentate counterparts, despite an increase in chewing strokes, sequence duration and EMG activity per sequence. Masticatory function was thus adapted to ageing, but was impaired in denture wearers, who failed to adapt fully to their deficient masticatory apparatus.
DOI: 10.1017/S0007114507795284
PubMed: 17666149
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sort="Peyron, Marie Agnes" uniqKey="Peyron M" first="Marie-Agnès" last="Peyron">Marie-Agnès Peyron</name></author><author><name sortKey="Rimek, Frank" sort="Rimek, Frank" uniqKey="Rimek F" first="Frank" last="Rimek">Frank Rimek</name></author><author><name sortKey="Woda, Alain" sort="Woda, Alain" uniqKey="Woda A" first="Alain" last="Woda">Alain Woda</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2008">2008</date><idno type="RBID">pubmed:17666149</idno><idno type="pmid">17666149</idno><idno type="doi">10.1017/S0007114507795284</idno><idno type="wicri:Area/PubMed/Corpus">002223</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">002223</idno><idno type="wicri:Area/PubMed/Curation">002223</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">002223</idno><idno type="wicri:Area/PubMed/Checkpoint">002223</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" 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Johanne" uniqKey="Renaud J" first="Johanne" last="Renaud">Johanne Renaud</name></author><author><name sortKey="Peyron, Marie Agnes" sort="Peyron, Marie Agnes" uniqKey="Peyron M" first="Marie-Agnès" last="Peyron">Marie-Agnès Peyron</name></author><author><name sortKey="Rimek, Frank" sort="Rimek, Frank" uniqKey="Rimek F" first="Frank" last="Rimek">Frank Rimek</name></author><author><name sortKey="Woda, Alain" sort="Woda, Alain" uniqKey="Woda A" first="Alain" last="Woda">Alain Woda</name></author></analytic><series><title level="j">The British journal of nutrition</title><idno type="ISSN">0007-1145</idno><imprint><date when="2008" type="published">2008</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Aged</term><term>Aged, 80 and over</term><term>Aging (physiology)</term><term>Arachis</term><term>Case-Control Studies</term><term>Daucus carota</term><term>Dentition</term><term>Dentures</term><term>Electromyography</term><term>Female</term><term>Humans</term><term>Male</term><term>Mastication (physiology)</term><term>Masticatory Muscles (physiology)</term><term>Middle Aged</term><term>Mouth, Edentulous</term><term>Particle Size</term><term>Salivation (physiology)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Appareils de prothèse dentaire</term><term>Arachis</term><term>Bouche édentée</term><term>Daucus carota</term><term>Denture</term><term>Femelle</term><term>Humains</term><term>Mastication (physiologie)</term><term>Muscles masticateurs (physiologie)</term><term>Mâle</term><term>Salivation (physiologie)</term><term>Sujet âgé</term><term>Sujet âgé de 80 ans ou plus</term><term>Taille de particule</term><term>Vieillissement (physiologie)</term><term>Électromyographie</term><term>Études cas-témoins</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Mastication</term><term>Muscles masticateurs</term><term>Salivation</term><term>Vieillissement</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Aging</term><term>Mastication</term><term>Masticatory Muscles</term><term>Salivation</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Adult</term><term>Aged</term><term>Aged, 80 and over</term><term>Arachis</term><term>Case-Control Studies</term><term>Daucus carota</term><term>Dentition</term><term>Dentures</term><term>Electromyography</term><term>Female</term><term>Humans</term><term>Male</term><term>Middle Aged</term><term>Mouth, Edentulous</term><term>Particle Size</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Appareils de prothèse dentaire</term><term>Arachis</term><term>Bouche édentée</term><term>Daucus carota</term><term>Denture</term><term>Femelle</term><term>Humains</term><term>Mâle</term><term>Sujet âgé</term><term>Sujet âgé de 80 ans ou plus</term><term>Taille de particule</term><term>Électromyographie</term><term>Études cas-témoins</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The objective of the present study was to assess the impact of age and dentition status on masticatory function. A three-arm case-control study was performed. Group 1 (n 14) was composed of young fully dentate subjects (age 35.6 +/- 10.6 years), group 2 (n 14) of aged fully dentate subjects (age 68.8 +/- 7.0 years) and group 3 (n 14) of aged full denture wearers (age 68.1 +/- 7.2 years). Mastication adaptation was assessed in the course of chewing groundnuts and carrots to swallowing threshold. Particle size distribution of the chewed food, electromyographic (EMG) activity of the masseter and temporalis muscles during chewing, and resting and stimulated whole saliva rates were measured. Aged dentate subjects used significantly more chewing strokes to reach swallowing threshold than younger dentate subjects (P < 0.05), with increased particle size reduction, longer chewing sequence duration (P < 0.05) and greater total EMG activity (P < 0.05) for both groundnuts and carrots. In addition, aged denture wearers made significantly more chewing strokes than aged dentate subjects (P < 0.001) to reach swallowing threshold for groundnuts. Particle size reduction at time of swallowing was significantly poorer for denture wearers than for their aged dentate counterparts, despite an increase in chewing strokes, sequence duration and EMG activity per sequence. Masticatory function was thus adapted to ageing, but was impaired in denture wearers, who failed to adapt fully to their deficient masticatory apparatus.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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