Loading conditions of endosseous implants in an edentulous human mandible: a three-dimensional, finite-element study.
Identifieur interne : 00A039 ( Main/Exploration ); précédent : 00A038; suivant : 00A040Loading conditions of endosseous implants in an edentulous human mandible: a three-dimensional, finite-element study.
Auteurs : H J Meijer [Pays-Bas] ; F J Starmans ; W H Steen ; F. BosmanSource :
- Journal of oral rehabilitation [ 0305-182X ] ; 1996.
Descripteurs français
- KwdFr :
- MESH :
- physiologie : Mandibule.
- physiopathologie : Mâchoire édentée.
- Analyse du stress dentaire, Force occlusale, Humains, Implants dentaires, Maquettes de structure, Mise en charge, Pose d'implant dentaire endo-osseux, Résistance à la compression, Résistance à la traction.
English descriptors
- KwdEn :
- MESH :
- chemical : Dental Implants.
- physiology : Mandible.
- physiopathology : Jaw, Edentulous.
- Bite Force, Compressive Strength, Dental Implantation, Endosseous, Dental Stress Analysis, Humans, Models, Structural, Tensile Strength, Weight-Bearing.
Abstract
The design of dental superstructures influences the loading on dental implants and the deformation of the anterior interforaminal bone in an edentulous mandible. This deformation causes stress in the bone around the implants and may lead to bone resorption and loss of the implant. The stress distribution around dental implants in an edentulous mandible was calculated by means of a three-dimensional, finite-element model of the anterior part of the jaw. This model was built from data obtained from slices of a single human mandible and was provided with four endosseous implants in the interforaminal region. The implants were either connected with a bar or remained solitary. The solitary implants or the bars were loaded either uniformly or non-uniformly. In case of a non-uniform distribution, either the central bar or the central implants were loaded or the lateral bars or the lateral implants were loaded. The most extreme stresses in the bone were always located around the neck of the implant. In the case of the uniform distribution of the loading there were more or less equal extreme principal stresses around the central and lateral implants. If the load was not uniformly distributed on the superstructure then the implant that was nearest to the place of loading showed the highest stress concentration; with connected implants there was a reduction in the magnitude of the extreme principal stresses compared to solitary implants.
PubMed: 8953480
Affiliations:
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Bosman</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1996">1996</date><idno type="RBID">pubmed:8953480</idno><idno type="pmid">8953480</idno><idno type="wicri:Area/PubMed/Corpus">003F73</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">003F73</idno><idno type="wicri:Area/PubMed/Curation">003F73</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">003F73</idno><idno type="wicri:Area/PubMed/Checkpoint">003F73</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">003F73</idno><idno type="wicri:Area/Ncbi/Merge">009832</idno><idno type="wicri:Area/Ncbi/Curation">009832</idno><idno type="wicri:Area/Ncbi/Checkpoint">009832</idno><idno type="wicri:doubleKey">0305-182X:1996:Meijer H:loading:conditions:of</idno><idno type="wicri:Area/Main/Merge">00A584</idno><idno type="wicri:Area/Main/Curation">00A039</idno><idno type="wicri:Area/Main/Exploration">00A039</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Loading conditions of endosseous implants in an edentulous human mandible: a three-dimensional, finite-element study.</title><author><name sortKey="Meijer, H J" sort="Meijer, H J" uniqKey="Meijer H" first="H J" last="Meijer">H J Meijer</name><affiliation wicri:level="1"><nlm:affiliation>Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen, The Netherlands.</nlm:affiliation><country xml:lang="fr">Pays-Bas</country><wicri:regionArea>Department of Oral and Maxillofacial Surgery and Maxillofacial Prosthetics, University Hospital Groningen</wicri:regionArea><wicri:noRegion>University Hospital Groningen</wicri:noRegion></affiliation></author><author><name sortKey="Starmans, F J" sort="Starmans, F J" uniqKey="Starmans F" first="F J" last="Starmans">F J Starmans</name></author><author><name sortKey="Steen, W H" sort="Steen, W H" uniqKey="Steen W" first="W H" last="Steen">W H Steen</name></author><author><name sortKey="Bosman, F" sort="Bosman, F" uniqKey="Bosman F" first="F" last="Bosman">F. Bosman</name></author></analytic><series><title level="j">Journal of oral rehabilitation</title><idno type="ISSN">0305-182X</idno><imprint><date when="1996" type="published">1996</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bite Force</term><term>Compressive Strength</term><term>Dental Implantation, Endosseous</term><term>Dental Implants</term><term>Dental Stress Analysis</term><term>Humans</term><term>Jaw, Edentulous (physiopathology)</term><term>Mandible (physiology)</term><term>Models, Structural</term><term>Tensile Strength</term><term>Weight-Bearing</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Analyse du stress dentaire</term><term>Force occlusale</term><term>Humains</term><term>Implants dentaires</term><term>Mandibule (physiologie)</term><term>Maquettes de structure</term><term>Mise en charge</term><term>Mâchoire édentée (physiopathologie)</term><term>Pose d'implant dentaire endo-osseux</term><term>Résistance à la compression</term><term>Résistance à la traction</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="physiologie" xml:lang="fr"><term>Mandibule</term></keywords><keywords scheme="MESH" qualifier="physiology" xml:lang="en"><term>Mandible</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Mâchoire édentée</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Jaw, Edentulous</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Bite Force</term><term>Compressive Strength</term><term>Dental Implantation, Endosseous</term><term>Dental Stress Analysis</term><term>Humans</term><term>Models, Structural</term><term>Tensile Strength</term><term>Weight-Bearing</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse du stress dentaire</term><term>Force occlusale</term><term>Humains</term><term>Implants dentaires</term><term>Maquettes de structure</term><term>Mise en charge</term><term>Pose d'implant dentaire endo-osseux</term><term>Résistance à la compression</term><term>Résistance à la traction</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The design of dental superstructures influences the loading on dental implants and the deformation of the anterior interforaminal bone in an edentulous mandible. This deformation causes stress in the bone around the implants and may lead to bone resorption and loss of the implant. The stress distribution around dental implants in an edentulous mandible was calculated by means of a three-dimensional, finite-element model of the anterior part of the jaw. This model was built from data obtained from slices of a single human mandible and was provided with four endosseous implants in the interforaminal region. The implants were either connected with a bar or remained solitary. The solitary implants or the bars were loaded either uniformly or non-uniformly. In case of a non-uniform distribution, either the central bar or the central implants were loaded or the lateral bars or the lateral implants were loaded. The most extreme stresses in the bone were always located around the neck of the implant. In the case of the uniform distribution of the loading there were more or less equal extreme principal stresses around the central and lateral implants. If the load was not uniformly distributed on the superstructure then the implant that was nearest to the place of loading showed the highest stress concentration; with connected implants there was a reduction in the magnitude of the extreme principal stresses compared to solitary implants.</div></front></TEI><affiliations><list><country><li>Pays-Bas</li></country></list><tree><noCountry><name sortKey="Bosman, F" sort="Bosman, F" uniqKey="Bosman F" first="F" last="Bosman">F. Bosman</name><name sortKey="Starmans, F J" sort="Starmans, F J" uniqKey="Starmans F" first="F J" last="Starmans">F J Starmans</name><name sortKey="Steen, W H" sort="Steen, W H" uniqKey="Steen W" first="W H" last="Steen">W H Steen</name></noCountry><country name="Pays-Bas"><noRegion><name sortKey="Meijer, H J" sort="Meijer, H J" uniqKey="Meijer H" first="H J" last="Meijer">H J Meijer</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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