Serveur d'exploration sur le patient édenté

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Complete denture wearers: electromyography of mastication and texture perception whilst eating meat

Identifieur interne : 000341 ( France/Analysis ); précédent : 000340; suivant : 000342

Complete denture wearers: electromyography of mastication and texture perception whilst eating meat

Auteurs : Jean-Luc Veyrune ; Laurence Mioche [France]

Source :

RBID : ISTEX:D56E9C0CF35F4A8315BE65C80D316B7E3BFE3B36

English descriptors

Abstract

This study was undertaken to evaluate the sensitivity of denture wearers to different food textures and to follow masticatory pattern adaptation with variation in texture using electromyography (EMG) recordings. Nine patients with complete dentures and 9 dentate control patients without any oro‐dental pathology were studied. Six different samples of beef were obtained from the same muscle by altering the state of the muscle fibres and by variation of the cooking temperature. The variations in texture were mechanically controlled. Electromyographic activity was recorded during chewing. The patients' subjective appreciation of texture was reported using a 10‐cm non‐structured analogue scale. The following parameters were analysed: muscle work, number of masticatory cycles, number of rejected samples, initial tenderness, overall tenderness, juiciness, and duration of chewing for each sample in the mouth. Muscle activity was less for the edentulous group, particularly that of the masseter muscles. The masticatory pattern of complete denture wearers was less adapted to each sample texture than was that of the control group. Both groups perceived differences in texture of the samples. It was concluded that although texture perception is little altered, muscular adaptation to the bolus is reduced in patients with complete dentures.

Url:
DOI: 10.1034/j.1600-0722.2000.90780.x


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ISTEX:D56E9C0CF35F4A8315BE65C80D316B7E3BFE3B36

Le document en format XML

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<term>Complete denture wearers</term>
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<term>Complete masticatory sequence</term>
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<term>Cooking temp</term>
<term>Cooking temperature</term>
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<term>Electromyography</term>
<term>Fischer values</term>
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<term>Food texture</term>
<term>Initial tenderness</term>
<term>Juice loss</term>
<term>Juiciness</term>
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<div type="abstract" xml:lang="en">This study was undertaken to evaluate the sensitivity of denture wearers to different food textures and to follow masticatory pattern adaptation with variation in texture using electromyography (EMG) recordings. Nine patients with complete dentures and 9 dentate control patients without any oro‐dental pathology were studied. Six different samples of beef were obtained from the same muscle by altering the state of the muscle fibres and by variation of the cooking temperature. The variations in texture were mechanically controlled. Electromyographic activity was recorded during chewing. The patients' subjective appreciation of texture was reported using a 10‐cm non‐structured analogue scale. The following parameters were analysed: muscle work, number of masticatory cycles, number of rejected samples, initial tenderness, overall tenderness, juiciness, and duration of chewing for each sample in the mouth. Muscle activity was less for the edentulous group, particularly that of the masseter muscles. The masticatory pattern of complete denture wearers was less adapted to each sample texture than was that of the control group. Both groups perceived differences in texture of the samples. It was concluded that although texture perception is little altered, muscular adaptation to the bolus is reduced in patients with complete dentures.</div>
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