Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae.
Identifieur interne : 009242 ( Ncbi/Curation ); précédent : 009241; suivant : 009243Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae.
Auteurs : U R Benzing [Allemagne] ; H. Gall ; H. WeberSource :
- The International journal of oral & maxillofacial implants [ 0882-2786 ]
Descripteurs français
- KwdFr :
- Alliage dentaire (), Alliages d'or (), Arcade dentaire (anatomopathologie), Conception de prothèse dentaire, Contrainte mécanique, Humains, Implants dentaires, Maxillaire (), Maxillaire (physiopathologie), Modèles biologiques, Mâchoire édentée (), Mâchoire édentée (physiopathologie), Phénomènes biomécaniques, Pose d'implant dentaire endo-osseux, Propriétés de surface, Rotation, Résines synthétiques (), Résistance à la traction, Titane (), Viscosité, Élasticité.
- MESH :
- anatomopathologie : Arcade dentaire.
- physiopathologie : Maxillaire, Mâchoire édentée.
- Alliage dentaire, Alliages d'or, Conception de prothèse dentaire, Contrainte mécanique, Humains, Implants dentaires, Maxillaire, Modèles biologiques, Mâchoire édentée, Phénomènes biomécaniques, Pose d'implant dentaire endo-osseux, Propriétés de surface, Rotation, Résines synthétiques, Résistance à la traction, Titane, Viscosité, Élasticité.
English descriptors
- KwdEn :
- Biomechanical Phenomena, Dental Alloys (chemistry), Dental Arch (pathology), Dental Implantation, Endosseous, Dental Implants, Dental Prosthesis Design, Elasticity, Gold Alloys (chemistry), Humans, Jaw, Edentulous (physiopathology), Jaw, Edentulous (surgery), Maxilla (physiopathology), Maxilla (surgery), Models, Biological, Resins, Synthetic (chemistry), Rotation, Stress, Mechanical, Surface Properties, Tensile Strength, Titanium (chemistry), Viscosity.
- MESH :
- chemical , chemistry : Dental Alloys, Gold Alloys, Resins, Synthetic, Titanium.
- pathology : Dental Arch.
- physiopathology : Jaw, Edentulous, Maxilla.
- surgery : Jaw, Edentulous, Maxilla.
- Biomechanical Phenomena, Dental Implantation, Endosseous, Dental Implants, Dental Prosthesis Design, Elasticity, Humans, Models, Biological, Rotation, Stress, Mechanical, Surface Properties, Tensile Strength, Viscosity.
Abstract
Two essentially different implant-prosthetic concepts are known for the treatment of edentulous maxillae. One concept propagates a "concentrated" arrangement of four to six implants in the premolar and anterior regions with a fixed cantilever superstructure. An alternative is a "spread-out" implant arrangement of six implants placed in the tuberosity, premolar, and anterior regions. The prosthetic rehabilitation consists of a fixed horseshoe-shaped bar and a removable prosthesis. A cantilever situation is avoided. The biomechanical aspects of these implant-prosthetic concepts were studied with clinical strain-gauge measurements and theoretical three-dimensional analysis using the finite element method. Results revealed that the distribution of bone stresses is more favorable with a spread-out implant arrangement than with a concentrated implant arrangement and cantilever restoration. The resistance to bending of a superstructure has an influence on bone stress concentration that should not be ignored. Stresses are controlled not only by the number or distribution of implants, but also by the material and design of the superstructure.
PubMed: 7744438
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Weber</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="????"><PubDate><MedlineDate>1995 Mar-Apr</MedlineDate></PubDate></date><idno type="RBID">pubmed:7744438</idno><idno type="pmid">7744438</idno><idno type="wicri:Area/PubMed/Corpus">004287</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">004287</idno><idno type="wicri:Area/PubMed/Curation">004287</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">004287</idno><idno type="wicri:Area/PubMed/Checkpoint">004287</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">004287</idno><idno type="wicri:Area/Ncbi/Merge">009242</idno><idno type="wicri:Area/Ncbi/Curation">009242</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Biomechanical aspects of two different implant-prosthetic concepts for edentulous maxillae.</title><author><name sortKey="Benzing, U R" sort="Benzing, U R" uniqKey="Benzing U" first="U R" last="Benzing">U R Benzing</name><affiliation wicri:level="1"><nlm:affiliation>Department of Prosthodontics, University of Tübingen, Germany.</nlm:affiliation><country xml:lang="fr">Allemagne</country><wicri:regionArea>Department of Prosthodontics, University of Tübingen</wicri:regionArea><wicri:noRegion>University of Tübingen</wicri:noRegion><wicri:noRegion>University of Tübingen</wicri:noRegion><wicri:noRegion>University of Tübingen</wicri:noRegion></affiliation></author><author><name sortKey="Gall, H" sort="Gall, H" uniqKey="Gall H" first="H" last="Gall">H. Gall</name></author><author><name sortKey="Weber, H" sort="Weber, H" uniqKey="Weber H" first="H" last="Weber">H. Weber</name></author></analytic><series><title level="j">The International journal of oral & maxillofacial implants</title><idno type="ISSN">0882-2786</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biomechanical Phenomena</term><term>Dental Alloys (chemistry)</term><term>Dental Arch (pathology)</term><term>Dental Implantation, Endosseous</term><term>Dental Implants</term><term>Dental Prosthesis Design</term><term>Elasticity</term><term>Gold Alloys (chemistry)</term><term>Humans</term><term>Jaw, Edentulous (physiopathology)</term><term>Jaw, Edentulous (surgery)</term><term>Maxilla (physiopathology)</term><term>Maxilla (surgery)</term><term>Models, Biological</term><term>Resins, Synthetic (chemistry)</term><term>Rotation</term><term>Stress, Mechanical</term><term>Surface Properties</term><term>Tensile Strength</term><term>Titanium (chemistry)</term><term>Viscosity</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Alliage dentaire ()</term><term>Alliages d'or ()</term><term>Arcade dentaire (anatomopathologie)</term><term>Conception de prothèse dentaire</term><term>Contrainte mécanique</term><term>Humains</term><term>Implants dentaires</term><term>Maxillaire ()</term><term>Maxillaire (physiopathologie)</term><term>Modèles biologiques</term><term>Mâchoire édentée ()</term><term>Mâchoire édentée (physiopathologie)</term><term>Phénomènes biomécaniques</term><term>Pose d'implant dentaire endo-osseux</term><term>Propriétés de surface</term><term>Rotation</term><term>Résines synthétiques ()</term><term>Résistance à la traction</term><term>Titane ()</term><term>Viscosité</term><term>Élasticité</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Dental Alloys</term><term>Gold Alloys</term><term>Resins, Synthetic</term><term>Titanium</term></keywords><keywords scheme="MESH" qualifier="anatomopathologie" xml:lang="fr"><term>Arcade dentaire</term></keywords><keywords scheme="MESH" qualifier="pathology" xml:lang="en"><term>Dental Arch</term></keywords><keywords scheme="MESH" qualifier="physiopathologie" xml:lang="fr"><term>Maxillaire</term><term>Mâchoire édentée</term></keywords><keywords scheme="MESH" qualifier="physiopathology" xml:lang="en"><term>Jaw, Edentulous</term><term>Maxilla</term></keywords><keywords scheme="MESH" qualifier="surgery" xml:lang="en"><term>Jaw, Edentulous</term><term>Maxilla</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biomechanical Phenomena</term><term>Dental Implantation, Endosseous</term><term>Dental Implants</term><term>Dental Prosthesis Design</term><term>Elasticity</term><term>Humans</term><term>Models, Biological</term><term>Rotation</term><term>Stress, Mechanical</term><term>Surface Properties</term><term>Tensile Strength</term><term>Viscosity</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Alliage dentaire</term><term>Alliages d'or</term><term>Conception de prothèse dentaire</term><term>Contrainte mécanique</term><term>Humains</term><term>Implants dentaires</term><term>Maxillaire</term><term>Modèles biologiques</term><term>Mâchoire édentée</term><term>Phénomènes biomécaniques</term><term>Pose d'implant dentaire endo-osseux</term><term>Propriétés de surface</term><term>Rotation</term><term>Résines synthétiques</term><term>Résistance à la traction</term><term>Titane</term><term>Viscosité</term><term>Élasticité</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Two essentially different implant-prosthetic concepts are known for the treatment of edentulous maxillae. One concept propagates a "concentrated" arrangement of four to six implants in the premolar and anterior regions with a fixed cantilever superstructure. An alternative is a "spread-out" implant arrangement of six implants placed in the tuberosity, premolar, and anterior regions. The prosthetic rehabilitation consists of a fixed horseshoe-shaped bar and a removable prosthesis. A cantilever situation is avoided. The biomechanical aspects of these implant-prosthetic concepts were studied with clinical strain-gauge measurements and theoretical three-dimensional analysis using the finite element method. Results revealed that the distribution of bone stresses is more favorable with a spread-out implant arrangement than with a concentrated implant arrangement and cantilever restoration. The resistance to bending of a superstructure has an influence on bone stress concentration that should not be ignored. Stresses are controlled not only by the number or distribution of implants, but also by the material and design of the superstructure.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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