Evaluation of the effect of the residual bone angulation on implant-supported fixed prosthesis in mandibular posterior edentulism. Part II: 3-D finite element stress analysis.
Identifieur interne : 003555 ( PubMed/Curation ); précédent : 003554; suivant : 003556Evaluation of the effect of the residual bone angulation on implant-supported fixed prosthesis in mandibular posterior edentulism. Part II: 3-D finite element stress analysis.
Auteurs : K. Akça [Turquie] ; H. Iplikçio LuSource :
- Implant dentistry [ 1056-6163 ] ; 2001.
Descripteurs français
- KwdFr :
- Analyse des éléments finis, Conception d'appareil de prothèse dentaire, Conception de prothèse dentaire, Contrainte mécanique, Force occlusale, Humains, Implants dentaires, Mandibule (), Mandibule (anatomopathologie), Mandibule (physiopathologie), Modèles biologiques, Molaire, Mâchoire partiellement édentée (), Mâchoire partiellement édentée (anatomopathologie), Mâchoire partiellement édentée (physiopathologie), Propriétés de surface, Prothèse dentaire implanto-portée, Prothèse partielle fixe, Prémolaire, Simulation numérique, Échec de restauration dentaire.
- MESH :
- anatomopathologie : Mandibule, Mâchoire partiellement édentée.
- physiopathologie : Mandibule, Mâchoire partiellement édentée.
- Analyse des éléments finis, Conception d'appareil de prothèse dentaire, Conception de prothèse dentaire, Contrainte mécanique, Force occlusale, Humains, Implants dentaires, Mandibule, Modèles biologiques, Molaire, Mâchoire partiellement édentée, Propriétés de surface, Prothèse dentaire implanto-portée, Prothèse partielle fixe, Prémolaire, Simulation numérique, Échec de restauration dentaire.
English descriptors
- KwdEn :
- Bicuspid, Bite Force, Computer Simulation, Dental Implants, Dental Prosthesis Design, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Denture Design, Denture, Partial, Fixed, Finite Element Analysis, Humans, Jaw, Edentulous, Partially (pathology), Jaw, Edentulous, Partially (physiopathology), Jaw, Edentulous, Partially (surgery), Mandible (pathology), Mandible (physiopathology), Mandible (surgery), Models, Biological, Molar, Stress, Mechanical, Surface Properties.
- MESH :
- chemical : Dental Implants.
- pathology : Jaw, Edentulous, Partially, Mandible.
- physiopathology : Jaw, Edentulous, Partially, Mandible.
- surgery : Jaw, Edentulous, Partially, Mandible.
- Bicuspid, Bite Force, Computer Simulation, Dental Prosthesis Design, Dental Prosthesis, Implant-Supported, Dental Restoration Failure, Denture Design, Denture, Partial, Fixed, Finite Element Analysis, Humans, Models, Biological, Molar, Stress, Mechanical, Surface Properties.
Abstract
Buccolingual angulation of the mandibular posterior edentulous region may affect the prosthetic load conditions, so as to cause high stress concentrated areas that may easily lead to failure. The aim of this study was to evaluate the effect of various predetermined buccolingual angulation values on stress distribution in the mandibular posterior edentulous region restored with implant-supported fixed partial dentures, using three-dimensional finite element analysis. Stress analyses were performed applying 400N oblique force to implant-supported fixed prosthesis. Stress analyses indicated tensile stress values on the buccal surface and compressive stress values on the lingual surface of cortical bone were increased as the angulation of the edentulous bone increased (especially corresponding to the cervical region of the implants). Compressive stress values, observed where two implants were placed at the second premolar and second molar regions (5-7 design) and first and second molar regions (6-7 design), respectively, were very close to or even exceeded the ultimate compressive strength of bone. It is concluded that when a definite buccolingual angulation is added to other existing risk factors such as bruxism, placing an implant for every missing tooth might reduce the high stress concentration areas.
PubMed: 11813664
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pubmed:11813664Le document en format XML
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<wicri:regionArea>Hacettepe University, Faculty of Dentistry, Department of Prosthodontics, 06100 Slhhiye Ankara</wicri:regionArea>
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<author><name sortKey="Iplikcio Lu, H" sort="Iplikcio Lu, H" uniqKey="Iplikcio Lu H" first="H" last="Iplikçio Lu">H. Iplikçio Lu</name>
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<term>Dental Implants</term>
<term>Dental Prosthesis Design</term>
<term>Dental Prosthesis, Implant-Supported</term>
<term>Dental Restoration Failure</term>
<term>Denture Design</term>
<term>Denture, Partial, Fixed</term>
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<term>Contrainte mécanique</term>
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<term>Propriétés de surface</term>
<term>Prothèse dentaire implanto-portée</term>
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<term>Prémolaire</term>
<term>Simulation numérique</term>
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<term>Mâchoire partiellement édentée</term>
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<term>Mandible</term>
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<term>Mâchoire partiellement édentée</term>
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<term>Mandible</term>
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<term>Mandible</term>
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<term>Computer Simulation</term>
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<term>Dental Prosthesis, Implant-Supported</term>
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<term>Humans</term>
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<term>Molar</term>
<term>Stress, Mechanical</term>
<term>Surface Properties</term>
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<term>Conception d'appareil de prothèse dentaire</term>
<term>Conception de prothèse dentaire</term>
<term>Contrainte mécanique</term>
<term>Force occlusale</term>
<term>Humains</term>
<term>Implants dentaires</term>
<term>Mandibule</term>
<term>Modèles biologiques</term>
<term>Molaire</term>
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<term>Propriétés de surface</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Prothèse partielle fixe</term>
<term>Prémolaire</term>
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<front><div type="abstract" xml:lang="en">Buccolingual angulation of the mandibular posterior edentulous region may affect the prosthetic load conditions, so as to cause high stress concentrated areas that may easily lead to failure. The aim of this study was to evaluate the effect of various predetermined buccolingual angulation values on stress distribution in the mandibular posterior edentulous region restored with implant-supported fixed partial dentures, using three-dimensional finite element analysis. Stress analyses were performed applying 400N oblique force to implant-supported fixed prosthesis. Stress analyses indicated tensile stress values on the buccal surface and compressive stress values on the lingual surface of cortical bone were increased as the angulation of the edentulous bone increased (especially corresponding to the cervical region of the implants). Compressive stress values, observed where two implants were placed at the second premolar and second molar regions (5-7 design) and first and second molar regions (6-7 design), respectively, were very close to or even exceeded the ultimate compressive strength of bone. It is concluded that when a definite buccolingual angulation is added to other existing risk factors such as bruxism, placing an implant for every missing tooth might reduce the high stress concentration areas.</div>
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<Abstract><AbstractText>Buccolingual angulation of the mandibular posterior edentulous region may affect the prosthetic load conditions, so as to cause high stress concentrated areas that may easily lead to failure. The aim of this study was to evaluate the effect of various predetermined buccolingual angulation values on stress distribution in the mandibular posterior edentulous region restored with implant-supported fixed partial dentures, using three-dimensional finite element analysis. Stress analyses were performed applying 400N oblique force to implant-supported fixed prosthesis. Stress analyses indicated tensile stress values on the buccal surface and compressive stress values on the lingual surface of cortical bone were increased as the angulation of the edentulous bone increased (especially corresponding to the cervical region of the implants). Compressive stress values, observed where two implants were placed at the second premolar and second molar regions (5-7 design) and first and second molar regions (6-7 design), respectively, were very close to or even exceeded the ultimate compressive strength of bone. It is concluded that when a definite buccolingual angulation is added to other existing risk factors such as bruxism, placing an implant for every missing tooth might reduce the high stress concentration areas.</AbstractText>
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