Finite element stress analysis of the effect of short implant usage in place of cantilever extensions in mandibular posterior edentulism.
Identifieur interne : 008248 ( Main/Exploration ); précédent : 008247; suivant : 008249Finite element stress analysis of the effect of short implant usage in place of cantilever extensions in mandibular posterior edentulism.
Auteurs : K. Akça [Turquie] ; H. Iplikçio LuSource :
- Journal of oral rehabilitation [ 0305-182X ] ; 2002.
Descripteurs français
- KwdFr :
- Analyse des éléments finis, Analyse du stress dentaire (), Conception de prothèse dentaire, Humains, Implants dentaires, Mandibule, Mâchoire partiellement édentée (physiopathologie), Prothèse dentaire implanto-portée, Prothèse partielle fixe, Résistance à la compression, Résistance à la traction, Élasticité.
- MESH :
- physiopathologie : Mâchoire partiellement édentée.
- Analyse des éléments finis, Analyse du stress dentaire, Conception de prothèse dentaire, Humains, Implants dentaires, Mandibule, Prothèse dentaire implanto-portée, Prothèse partielle fixe, Résistance à la compression, Résistance à la traction, Élasticité.
English descriptors
- KwdEn :
- MESH :
- chemical : Dental Implants.
- methods : Dental Stress Analysis.
- physiopathology : Jaw, Edentulous, Partially.
- Compressive Strength, Dental Prosthesis Design, Dental Prosthesis, Implant-Supported, Denture, Partial, Fixed, Elasticity, Finite Element Analysis, Humans, Mandible, Tensile Strength.
Abstract
Although the destructive effect of cantilevered implant supported fixed partial prosthesis is well known, in some cases usage of cantilever extension seems to be inevitable for many clinicians. The purpose of this study was to evaluate the effect of additional placement of a shorter implant in place of a cantilever extension on stress distribution compared with cantilevered fixed prosthesis in mandibular posterior edentulism. A mandibular Kennedy II finite element model was constructed. Six different implant supported fixed partial prosthesis were designed according to two main configurations; anterior and posterior cantilever extensions compared with the placement of additional shorter implant configurations. An oblique occlusal load of 400 N was applied. Tensile and compressive stress values in the cortical bone surrounding the cervical regions of implants and Von Misses stress values in the implants were evaluated. Significant lower stress values were recorded at the shorter implant placement configurations compared with the cantilevered prosthesis. Posterior cantilever extension performed higher stress values than the anterior counterpart. In clinical applications where cantilevered fixed partial prosthesis seems to be inevitable because of anatomical restrictions and/or complications such as loss of implant, an additional placement of a shorter implant should be considered.
PubMed: 11966968
Affiliations:
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Le document en format XML
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Akça</name><affiliation wicri:level="1"><nlm:affiliation>Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey. kivanc.akca@veezy.com</nlm:affiliation><country xml:lang="fr">Turquie</country><wicri:regionArea>Department of Prosthodontics, Faculty of Dentistry, Hacettepe University, Ankara</wicri:regionArea><wicri:noRegion>Ankara</wicri:noRegion></affiliation></author><author><name sortKey="Iplikcio Lu, H" sort="Iplikcio Lu, H" uniqKey="Iplikcio Lu H" first="H" last="Iplikçio Lu">H. Iplikçio Lu</name></author></analytic><series><title level="j">Journal of oral rehabilitation</title><idno type="ISSN">0305-182X</idno><imprint><date when="2002" type="published">2002</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Compressive Strength</term><term>Dental Implants</term><term>Dental Prosthesis Design</term><term>Dental Prosthesis, Implant-Supported</term><term>Dental Stress Analysis (methods)</term><term>Denture, Partial, Fixed</term><term>Elasticity</term><term>Finite Element Analysis</term><term>Humans</term><term>Jaw, Edentulous, Partially (physiopathology)</term><term>Mandible</term><term>Tensile Strength</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Analyse des éléments finis</term><term>Analyse du stress dentaire ()</term><term>Conception de prothèse dentaire</term><term>Humains</term><term>Implants dentaires</term><term>Mandibule</term><term>Mâchoire partiellement édentée (physiopathologie)</term><term>Prothèse dentaire implanto-portée</term><term>Prothèse partielle fixe</term><term>Résistance à la compression</term><term>Résistance à la traction</term><term>Élasticité</term></keywords><keywords scheme="MESH" type="chemical" xml:lang="en"><term>Dental Implants</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Stress Analysis</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Mâchoire partiellement édentée</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Jaw, Edentulous, Partially</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Compressive Strength</term><term>Dental Prosthesis Design</term><term>Dental Prosthesis, Implant-Supported</term><term>Denture, Partial, Fixed</term><term>Elasticity</term><term>Finite Element Analysis</term><term>Humans</term><term>Mandible</term><term>Tensile Strength</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Analyse des éléments finis</term><term>Analyse du stress dentaire</term><term>Conception de prothèse dentaire</term><term>Humains</term><term>Implants dentaires</term><term>Mandibule</term><term>Prothèse dentaire implanto-portée</term><term>Prothèse partielle fixe</term><term>Résistance à la compression</term><term>Résistance à la traction</term><term>Élasticité</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Although the destructive effect of cantilevered implant supported fixed partial prosthesis is well known, in some cases usage of cantilever extension seems to be inevitable for many clinicians. The purpose of this study was to evaluate the effect of additional placement of a shorter implant in place of a cantilever extension on stress distribution compared with cantilevered fixed prosthesis in mandibular posterior edentulism. A mandibular Kennedy II finite element model was constructed. Six different implant supported fixed partial prosthesis were designed according to two main configurations; anterior and posterior cantilever extensions compared with the placement of additional shorter implant configurations. An oblique occlusal load of 400 N was applied. Tensile and compressive stress values in the cortical bone surrounding the cervical regions of implants and Von Misses stress values in the implants were evaluated. Significant lower stress values were recorded at the shorter implant placement configurations compared with the cantilevered prosthesis. Posterior cantilever extension performed higher stress values than the anterior counterpart. In clinical applications where cantilevered fixed partial prosthesis seems to be inevitable because of anatomical restrictions and/or complications such as loss of implant, an additional placement of a shorter implant should be considered.</div></front></TEI><affiliations><list><country><li>Turquie</li></country></list><tree><noCountry><name sortKey="Iplikcio Lu, H" sort="Iplikcio Lu, H" uniqKey="Iplikcio Lu H" first="H" last="Iplikçio Lu">H. Iplikçio Lu</name></noCountry><country name="Turquie"><noRegion><name sortKey="Akca, K" sort="Akca, K" uniqKey="Akca K" first="K" last="Akça">K. Akça</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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