Alteration in directional specificity of interdental dimension discrimination with the degree of mouth opening
Identifieur interne : 00D298 ( Main/Exploration ); précédent : 00D297; suivant : 00D299Alteration in directional specificity of interdental dimension discrimination with the degree of mouth opening
Auteurs : T. Morimoto ; T. Hamada ; Y. Kawamura [Japon]Source :
- Journal of Oral Rehabilitation [ 0305-182X ] ; 1983-07.
Descripteurs français
- KwdFr :
- MESH :
- physiologie : Bouche, Dent, Muscles masticateurs.
- physiopathologie : Bouche édentée.
- Adulte, Adulte d'âge moyen, Dimension verticale, Femelle, Humains, Mâle, Toucher.
English descriptors
- KwdEn :
- Adult, Christensen, Christensen morimoto, Dental school, Dentate, Dentate subjects, Denture, Difference limen, Different degrees, Different openings, Dimension discrimination, Directional specificity, Discrimination threshold, Edentulous, Edentulous subjects, Equivalent stimuli, Female, Fibre, Humans, Intercuspal position, Interdental, Interdental dimension discrimination, Intrafusal, Intrafusal fibres, Kawamura, Laine, Lower incisors, Male, Mandible, Mandibular positions, Masticatory Muscles (physiology), Masticatory muscles, Middle Aged, Morimoto, Morimoto christensen, Morimoto kawamura, Motor functions, Mouth (physiology), Mouth opening, Mouth opening degree, Mouth, Edentulous (physiopathology), Muscle spindles, Muscular sensation, Oral biology, Oral physiology, Oral rehabilitation, Osaka university, Other hand, Position sense, Present observation, Present study, Prosthetic dentistry, Random order, Receptor, Relaxation time, Sensory information, Significant difference, Siirila, Siirila laine, Small test, Subjective equality, Tooth (physiology), Touch, Vertical Dimension, Vertical dimension, Vibration test, Vibratory stimulation, Vibratory stimuli.
- MESH :
- physiology : Masticatory Muscles, Mouth, Tooth.
- physiopathology : Mouth, Edentulous.
- Teeft :
- Adult, Christensen, Christensen morimoto, Dental school, Dentate, Dentate subjects, Denture, Difference limen, Different degrees, Different openings, Dimension discrimination, Directional specificity, Discrimination threshold, Edentulous, Edentulous subjects, Equivalent stimuli, Female, Fibre, Humans, Intercuspal position, Interdental, Interdental dimension discrimination, Intrafusal, Intrafusal fibres, Kawamura, Laine, Lower incisors, Male, Mandible, Mandibular positions, Masticatory muscles, Middle Aged, Morimoto, Morimoto christensen, Morimoto kawamura, Motor functions, Mouth opening, Mouth opening degree, Muscle spindles, Muscular sensation, Oral biology, Oral physiology, Oral rehabilitation, Osaka university, Other hand, Position sense, Present observation, Present study, Prosthetic dentistry, Random order, Receptor, Relaxation time, Sensory information, Significant difference, Siirila, Siirila laine, Small test, Subjective equality, Touch, Vertical Dimension, Vertical dimension, Vibration test, Vibratory stimulation, Vibratory stimuli.
Abstract
The interdental dimension discrimination (IDD) ability was tested at seven different degrees of mouth opening: 40 mm, 30 mm, 20 mm and 10 mm openings for the dentate subjects, and 10 mm opening, intercuspal position (ICP) and the ICP minus 5 mm for the edentulous subjects. The subjects were asked to discriminate between pairs of sticks held alternately between the upper and lower incisors. The IDD ability, evaluated in terms of the 50% difference limen (DL), did not differ significantly between any two of the tests conducted at seven different openings, although the number of misjudgments of the dentate subjects tended to increase with the degree of mouth opening. On the other hand, the directional specificity of the IDD, which is a tendency to overestimate the dimension of the first stick of each pair, developed almost linearly with a decrease in the opening degree. These findings indicate that the behaviour of the receptors concerned varies with the intermaxillary distance. Some edentulous subjects could not perceive the presence of a small test stick at the overclosed position (ICP ‐ 5 mm), but vibration applied to the mandible enabled the subjects to detect the stick at the same opening. These results support the assumption that the muscle spindles of the jaw‐closing muscles are the receptors responsible for the IDD.
Url:
DOI: 10.1111/j.1365-2842.1983.tb00128.x
Affiliations:
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Le document en format XML
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Morimoto</name><affiliation><wicri:noCountry code="subField">University</wicri:noCountry></affiliation></author><author><name sortKey="Hamada, T" sort="Hamada, T" uniqKey="Hamada T" first="T." last="Hamada">T. Hamada</name><affiliation><wicri:noCountry code="subField">University</wicri:noCountry></affiliation></author><author><name sortKey="Kawamura, Y" sort="Kawamura, Y" uniqKey="Kawamura Y" first="Y." last="Kawamura">Y. Kawamura</name><affiliation></affiliation><affiliation wicri:level="1"><country xml:lang="fr">Japon</country><wicri:regionArea>Correspondence address: Prof. Y. Kawamura, Department of Oral Physiology, Dental School, Osaka University, 3–48, Nakanoshima 4‐Chome, Kitaku, Osaka</wicri:regionArea><wicri:noRegion>Osaka</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">Journal of Oral Rehabilitation</title><title level="j" type="alt">JOURNAL ORAL REHABILITATION</title><idno type="ISSN">0305-182X</idno><idno type="eISSN">1365-2842</idno><imprint><biblScope unit="vol">10</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="335">335</biblScope><biblScope unit="page" to="342">342</biblScope><biblScope unit="page-count">8</biblScope><publisher>Blackwell Publishing Ltd</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="1983-07">1983-07</date></imprint><idno type="ISSN">0305-182X</idno></series></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0305-182X</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Adult</term><term>Christensen</term><term>Christensen morimoto</term><term>Dental school</term><term>Dentate</term><term>Dentate subjects</term><term>Denture</term><term>Difference limen</term><term>Different degrees</term><term>Different openings</term><term>Dimension discrimination</term><term>Directional specificity</term><term>Discrimination threshold</term><term>Edentulous</term><term>Edentulous subjects</term><term>Equivalent stimuli</term><term>Female</term><term>Fibre</term><term>Humans</term><term>Intercuspal position</term><term>Interdental</term><term>Interdental dimension discrimination</term><term>Intrafusal</term><term>Intrafusal fibres</term><term>Kawamura</term><term>Laine</term><term>Lower incisors</term><term>Male</term><term>Mandible</term><term>Mandibular positions</term><term>Masticatory Muscles (physiology)</term><term>Masticatory muscles</term><term>Middle Aged</term><term>Morimoto</term><term>Morimoto christensen</term><term>Morimoto kawamura</term><term>Motor functions</term><term>Mouth (physiology)</term><term>Mouth opening</term><term>Mouth opening degree</term><term>Mouth, Edentulous (physiopathology)</term><term>Muscle spindles</term><term>Muscular sensation</term><term>Oral biology</term><term>Oral physiology</term><term>Oral rehabilitation</term><term>Osaka university</term><term>Other hand</term><term>Position sense</term><term>Present observation</term><term>Present study</term><term>Prosthetic dentistry</term><term>Random order</term><term>Receptor</term><term>Relaxation time</term><term>Sensory information</term><term>Significant difference</term><term>Siirila</term><term>Siirila laine</term><term>Small test</term><term>Subjective equality</term><term>Tooth (physiology)</term><term>Touch</term><term>Vertical Dimension</term><term>Vertical dimension</term><term>Vibration test</term><term>Vibratory stimulation</term><term>Vibratory stimuli</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Bouche (physiologie)</term><term>Bouche édentée (physiopathologie)</term><term>Dent (physiologie)</term><term>Dimension verticale</term><term>Femelle</term><term>Humains</term><term>Muscles masticateurs (physiologie)</term><term>Mâle</term><term>Toucher</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Bouche</term><term>Dent</term><term>Muscles masticateurs</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Masticatory Muscles</term><term>Mouth</term><term>Tooth</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Bouche édentée</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Mouth, Edentulous</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Adult</term><term>Christensen</term><term>Christensen morimoto</term><term>Dental school</term><term>Dentate</term><term>Dentate subjects</term><term>Denture</term><term>Difference limen</term><term>Different degrees</term><term>Different openings</term><term>Dimension discrimination</term><term>Directional specificity</term><term>Discrimination threshold</term><term>Edentulous</term><term>Edentulous subjects</term><term>Equivalent stimuli</term><term>Female</term><term>Fibre</term><term>Humans</term><term>Intercuspal position</term><term>Interdental</term><term>Interdental dimension discrimination</term><term>Intrafusal</term><term>Intrafusal fibres</term><term>Kawamura</term><term>Laine</term><term>Lower incisors</term><term>Male</term><term>Mandible</term><term>Mandibular positions</term><term>Masticatory muscles</term><term>Middle Aged</term><term>Morimoto</term><term>Morimoto christensen</term><term>Morimoto kawamura</term><term>Motor functions</term><term>Mouth opening</term><term>Mouth opening degree</term><term>Muscle spindles</term><term>Muscular sensation</term><term>Oral biology</term><term>Oral physiology</term><term>Oral rehabilitation</term><term>Osaka university</term><term>Other hand</term><term>Position sense</term><term>Present observation</term><term>Present study</term><term>Prosthetic dentistry</term><term>Random order</term><term>Receptor</term><term>Relaxation time</term><term>Sensory information</term><term>Significant difference</term><term>Siirila</term><term>Siirila laine</term><term>Small test</term><term>Subjective equality</term><term>Touch</term><term>Vertical Dimension</term><term>Vertical dimension</term><term>Vibration test</term><term>Vibratory stimulation</term><term>Vibratory stimuli</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Adulte</term><term>Adulte d'âge moyen</term><term>Dimension verticale</term><term>Femelle</term><term>Humains</term><term>Mâle</term><term>Toucher</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The interdental dimension discrimination (IDD) ability was tested at seven different degrees of mouth opening: 40 mm, 30 mm, 20 mm and 10 mm openings for the dentate subjects, and 10 mm opening, intercuspal position (ICP) and the ICP minus 5 mm for the edentulous subjects. The subjects were asked to discriminate between pairs of sticks held alternately between the upper and lower incisors. The IDD ability, evaluated in terms of the 50% difference limen (DL), did not differ significantly between any two of the tests conducted at seven different openings, although the number of misjudgments of the dentate subjects tended to increase with the degree of mouth opening. On the other hand, the directional specificity of the IDD, which is a tendency to overestimate the dimension of the first stick of each pair, developed almost linearly with a decrease in the opening degree. These findings indicate that the behaviour of the receptors concerned varies with the intermaxillary distance. Some edentulous subjects could not perceive the presence of a small test stick at the overclosed position (ICP ‐ 5 mm), but vibration applied to the mandible enabled the subjects to detect the stick at the same opening. These results support the assumption that the muscle spindles of the jaw‐closing muscles are the receptors responsible for the IDD.</div></front></TEI><affiliations><list><country><li>Japon</li></country></list><tree><noCountry><name sortKey="Hamada, T" sort="Hamada, T" uniqKey="Hamada T" first="T." last="Hamada">T. Hamada</name><name sortKey="Morimoto, T" sort="Morimoto, T" uniqKey="Morimoto T" first="T." last="Morimoto">T. Morimoto</name></noCountry><country name="Japon"><noRegion><name sortKey="Kawamura, Y" sort="Kawamura, Y" uniqKey="Kawamura Y" first="Y." last="Kawamura">Y. Kawamura</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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