Mandibular flexure and stress build-up in mandibular full-arch fixed prostheses supported by osseointegrated implants.
Identifieur interne : 002F87 ( PubMed/Corpus ); précédent : 002F86; suivant : 002F88Mandibular flexure and stress build-up in mandibular full-arch fixed prostheses supported by osseointegrated implants.
Auteurs : Fernando Zarone ; Antonio Apicella ; Luigi Nicolais ; Raffaella Aversa ; Roberto SorrentinoSource :
- Clinical oral implants research [ 0905-7161 ] ; 2003.
English descriptors
- KwdEn :
- Ceramics (chemistry), Computer Simulation, Dental Implants, Dental Prosthesis, Implant-Supported, Denture Design, Finite Element Analysis, Gold Alloys (chemistry), Humans, Jaw, Edentulous (physiopathology), Mandible (physiology), Metal Ceramic Alloys (chemistry), Models, Biological, Osseointegration, Pliability, Stress, Mechanical, Surface Properties, Weight-Bearing (physiology).
- MESH :
- chemical , chemistry : Gold Alloys, Metal Ceramic Alloys.
- chemical : Dental Implants.
- chemistry : Ceramics.
- physiology : Mandible, Weight-Bearing.
- physiopathology : Jaw, Edentulous.
- Computer Simulation, Dental Prosthesis, Implant-Supported, Denture Design, Finite Element Analysis, Humans, Models, Biological, Osseointegration, Pliability, Stress, Mechanical, Surface Properties.
Abstract
The biomechanical effect of mandibular functional flexure on stress build-up in implant-supported fixed restorations is discussed. The relative deformations and stress distributions in six different designs of implant-supported prosthetic systems (six or four implants, with or without distal cantilevers, cross-arch or midline-divided bar into two free-standing bridges) were analysed by a three-dimensional finite element (FE) model of a human edentulous mandible. A significant amount of stress in the more distal implants and the superstructure at the symphysis arises as a consequence of mandible functional flexure. The analysis of the stress distributions generated by the different restorative patterns suggests that a division of the superstructure at the level of the symphysis significantly restores the natural functional flexure of the mandible.
PubMed: 12562372
Links to Exploration step
pubmed:12562372Le document en format XML
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<author><name sortKey="Zarone, Fernando" sort="Zarone, Fernando" uniqKey="Zarone F" first="Fernando" last="Zarone">Fernando Zarone</name>
<affiliation><nlm:affiliation>Department of Dental and Maxillofacial Sciences, University of Naples 'Federico II', Naples, Italy. zarone@unina.it</nlm:affiliation>
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<author><name sortKey="Apicella, Antonio" sort="Apicella, Antonio" uniqKey="Apicella A" first="Antonio" last="Apicella">Antonio Apicella</name>
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<author><name sortKey="Nicolais, Luigi" sort="Nicolais, Luigi" uniqKey="Nicolais L" first="Luigi" last="Nicolais">Luigi Nicolais</name>
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<author><name sortKey="Aversa, Raffaella" sort="Aversa, Raffaella" uniqKey="Aversa R" first="Raffaella" last="Aversa">Raffaella Aversa</name>
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<author><name sortKey="Sorrentino, Roberto" sort="Sorrentino, Roberto" uniqKey="Sorrentino R" first="Roberto" last="Sorrentino">Roberto Sorrentino</name>
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<author><name sortKey="Zarone, Fernando" sort="Zarone, Fernando" uniqKey="Zarone F" first="Fernando" last="Zarone">Fernando Zarone</name>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Ceramics (chemistry)</term>
<term>Computer Simulation</term>
<term>Dental Implants</term>
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<term>Denture Design</term>
<term>Finite Element Analysis</term>
<term>Gold Alloys (chemistry)</term>
<term>Humans</term>
<term>Jaw, Edentulous (physiopathology)</term>
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<term>Humans</term>
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<front><div type="abstract" xml:lang="en">The biomechanical effect of mandibular functional flexure on stress build-up in implant-supported fixed restorations is discussed. The relative deformations and stress distributions in six different designs of implant-supported prosthetic systems (six or four implants, with or without distal cantilevers, cross-arch or midline-divided bar into two free-standing bridges) were analysed by a three-dimensional finite element (FE) model of a human edentulous mandible. A significant amount of stress in the more distal implants and the superstructure at the symphysis arises as a consequence of mandible functional flexure. The analysis of the stress distributions generated by the different restorative patterns suggests that a division of the superstructure at the level of the symphysis significantly restores the natural functional flexure of the mandible.</div>
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<Abstract><AbstractText>The biomechanical effect of mandibular functional flexure on stress build-up in implant-supported fixed restorations is discussed. The relative deformations and stress distributions in six different designs of implant-supported prosthetic systems (six or four implants, with or without distal cantilevers, cross-arch or midline-divided bar into two free-standing bridges) were analysed by a three-dimensional finite element (FE) model of a human edentulous mandible. A significant amount of stress in the more distal implants and the superstructure at the symphysis arises as a consequence of mandible functional flexure. The analysis of the stress distributions generated by the different restorative patterns suggests that a division of the superstructure at the level of the symphysis significantly restores the natural functional flexure of the mandible.</AbstractText>
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