Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw.
Identifieur interne : 005273 ( Ncbi/Checkpoint ); précédent : 005272; suivant : 005274Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw.
Auteurs : João Paulo Da Silva-Neto ; Marcele Jardim Pimentel ; Flávio Domingues Das Neves ; Rafael Leonardo Xediek Consani ; Mateus Bertolini Fernandes Dos SantosSource :
- Brazilian oral research [ 1807-3107 ] ; 2014.
Descripteurs français
- KwdFr :
- Analyse des éléments finis, Analyse du stress dentaire, Conception de prothèse dentaire (), Humains, Illustration médicale, Imagerie tridimensionnelle, Modèles anatomiques, Mâchoire édentée (rééducation et réadaptation), Piliers dentaires, Prothèse dentaire implanto-portée (), Reproductibilité des résultats, Valeurs de référence, Vis orthopédiques.
- MESH :
- rééducation et réadaptation : Mâchoire édentée.
- Analyse des éléments finis, Analyse du stress dentaire, Conception de prothèse dentaire, Humains, Illustration médicale, Imagerie tridimensionnelle, Modèles anatomiques, Piliers dentaires, Prothèse dentaire implanto-portée, Reproductibilité des résultats, Valeurs de référence, Vis orthopédiques.
English descriptors
- KwdEn :
- Bone Screws, Dental Abutments, Dental Prosthesis Design (methods), Dental Prosthesis, Implant-Supported (methods), Dental Stress Analysis, Finite Element Analysis, Humans, Imaging, Three-Dimensional, Jaw, Edentulous (rehabilitation), Medical Illustration, Models, Anatomic, Reference Values, Reproducibility of Results.
- MESH :
- methods : Dental Prosthesis Design, Dental Prosthesis, Implant-Supported.
- rehabilitation : Jaw, Edentulous.
- Bone Screws, Dental Abutments, Dental Stress Analysis, Finite Element Analysis, Humans, Imaging, Three-Dimensional, Medical Illustration, Models, Anatomic, Reference Values, Reproducibility of Results.
Abstract
This study's aim was to evaluate the stress distribution in a mandibular implant-supported prosthesis and peri-implant bone considering implant quantity, diameter and position using linear 3-D finite element analysis. Models of an anterior jaw comprised 4 groups according to implant quantity, diameter, and position: control group C, 5 regular implants; R, 3 regular implants; W, 3 wide implants; and DTR, 3 regular implants with the distal ones tilted 30° distally. The cantilever was loaded with an axial load of 50 N. Data was evaluated using von Mises stress on implants and maximum principal stress and microstrain on the bone. The W group showed the lowest value of maximum principal stress in peri-implant bone of the loaded side (4.64 MPa) when compared to C (5.27 MPa), DTR (5.94 MPa), and R (11.12 MPa). Lower stress values in the loaded implants were observed in the experimental groups when compared to the C group. However, the unloaded implants presented opposite results. All the screws of the W group presented lower stress values when compared to the C group. However, the R and DTR groups presented an increase in stress values with the exception of the loaded screw. A reduction in the number of implants associated with wider implants reduced the stress in the bone and prosthetic components.
PubMed: 25000604
Affiliations:
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pubmed:25000604Le document en format XML
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<term>Humans</term>
<term>Imaging, Three-Dimensional</term>
<term>Jaw, Edentulous (rehabilitation)</term>
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<term>Analyse du stress dentaire</term>
<term>Conception de prothèse dentaire ()</term>
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<term>Illustration médicale</term>
<term>Imagerie tridimensionnelle</term>
<term>Modèles anatomiques</term>
<term>Mâchoire édentée (rééducation et réadaptation)</term>
<term>Piliers dentaires</term>
<term>Prothèse dentaire implanto-portée ()</term>
<term>Reproductibilité des résultats</term>
<term>Valeurs de référence</term>
<term>Vis orthopédiques</term>
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<term>Dental Prosthesis, Implant-Supported</term>
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<term>Medical Illustration</term>
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<term>Reproducibility of Results</term>
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<term>Analyse du stress dentaire</term>
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<term>Illustration médicale</term>
<term>Imagerie tridimensionnelle</term>
<term>Modèles anatomiques</term>
<term>Piliers dentaires</term>
<term>Prothèse dentaire implanto-portée</term>
<term>Reproductibilité des résultats</term>
<term>Valeurs de référence</term>
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<front><div type="abstract" xml:lang="en">This study's aim was to evaluate the stress distribution in a mandibular implant-supported prosthesis and peri-implant bone considering implant quantity, diameter and position using linear 3-D finite element analysis. Models of an anterior jaw comprised 4 groups according to implant quantity, diameter, and position: control group C, 5 regular implants; R, 3 regular implants; W, 3 wide implants; and DTR, 3 regular implants with the distal ones tilted 30° distally. The cantilever was loaded with an axial load of 50 N. Data was evaluated using von Mises stress on implants and maximum principal stress and microstrain on the bone. The W group showed the lowest value of maximum principal stress in peri-implant bone of the loaded side (4.64 MPa) when compared to C (5.27 MPa), DTR (5.94 MPa), and R (11.12 MPa). Lower stress values in the loaded implants were observed in the experimental groups when compared to the C group. However, the unloaded implants presented opposite results. All the screws of the W group presented lower stress values when compared to the C group. However, the R and DTR groups presented an increase in stress values with the exception of the loaded screw. A reduction in the number of implants associated with wider implants reduced the stress in the bone and prosthetic components.</div>
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<tree><noCountry><name sortKey="Consani, Rafael Leonardo Xediek" sort="Consani, Rafael Leonardo Xediek" uniqKey="Consani R" first="Rafael Leonardo Xediek" last="Consani">Rafael Leonardo Xediek Consani</name>
<name sortKey="Neves, Flavio Domingues Das" sort="Neves, Flavio Domingues Das" uniqKey="Neves F" first="Flávio Domingues Das" last="Neves">Flávio Domingues Das Neves</name>
<name sortKey="Pimentel, Marcele Jardim" sort="Pimentel, Marcele Jardim" uniqKey="Pimentel M" first="Marcele Jardim" last="Pimentel">Marcele Jardim Pimentel</name>
<name sortKey="Santos, Mateus Bertolini Fernandes Dos" sort="Santos, Mateus Bertolini Fernandes Dos" uniqKey="Santos M" first="Mateus Bertolini Fernandes Dos" last="Santos">Mateus Bertolini Fernandes Dos Santos</name>
<name sortKey="Silva Neto, Joao Paulo Da" sort="Silva Neto, Joao Paulo Da" uniqKey="Silva Neto J" first="João Paulo Da" last="Silva-Neto">João Paulo Da Silva-Neto</name>
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