Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw.
Identifieur interne : 000803 ( PubMed/Corpus ); précédent : 000802; suivant : 000804Stress 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.
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
Links to Exploration step
pubmed:25000604Le document en format XML
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<author><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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<author><name sortKey="Pimentel, Marcele Jardim" sort="Pimentel, Marcele Jardim" uniqKey="Pimentel M" first="Marcele Jardim" last="Pimentel">Marcele Jardim Pimentel</name>
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<author><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>
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<author><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>
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<author><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>
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<sourceDesc><biblStruct><analytic><title xml:lang="en">Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw.</title>
<author><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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<author><name sortKey="Pimentel, Marcele Jardim" sort="Pimentel, Marcele Jardim" uniqKey="Pimentel M" first="Marcele Jardim" last="Pimentel">Marcele Jardim Pimentel</name>
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<author><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>
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<author><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>
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<author><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>
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<series><title level="j">Brazilian oral research</title>
<idno type="eISSN">1807-3107</idno>
<imprint><date when="2014" type="published">2014</date>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Bone Screws</term>
<term>Dental Abutments</term>
<term>Dental Prosthesis Design (methods)</term>
<term>Dental Prosthesis, Implant-Supported (methods)</term>
<term>Dental Stress Analysis</term>
<term>Finite Element Analysis</term>
<term>Humans</term>
<term>Imaging, Three-Dimensional</term>
<term>Jaw, Edentulous (rehabilitation)</term>
<term>Medical Illustration</term>
<term>Models, Anatomic</term>
<term>Reference Values</term>
<term>Reproducibility of Results</term>
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<keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Dental Prosthesis Design</term>
<term>Dental Prosthesis, Implant-Supported</term>
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<keywords scheme="MESH" qualifier="rehabilitation" xml:lang="en"><term>Jaw, Edentulous</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Bone Screws</term>
<term>Dental Abutments</term>
<term>Dental Stress Analysis</term>
<term>Finite Element Analysis</term>
<term>Humans</term>
<term>Imaging, Three-Dimensional</term>
<term>Medical Illustration</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>
</front>
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<DateCompleted><Year>2014</Year>
<Month>07</Month>
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<DateRevised><Year>2015</Year>
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<Title>Brazilian oral research</Title>
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<ArticleTitle>Stress analysis of different configurations of 3 implants to support a fixed prosthesis in an edentulous jaw.</ArticleTitle>
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<Abstract><AbstractText>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.</AbstractText>
</Abstract>
<AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Silva-Neto</LastName>
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<Author ValidYN="Y"><LastName>Neves</LastName>
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<Author ValidYN="Y"><LastName>Consani</LastName>
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<MeshHeadingList><MeshHeading><DescriptorName UI="D001863" MajorTopicYN="N">Bone Screws</DescriptorName>
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<MeshHeading><DescriptorName UI="D000044" MajorTopicYN="N">Dental Abutments</DescriptorName>
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<MeshHeading><DescriptorName UI="D017267" MajorTopicYN="N">Dental Prosthesis Design</DescriptorName>
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<MeshHeading><DescriptorName UI="D007575" MajorTopicYN="N">Jaw, Edentulous</DescriptorName>
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<MeshHeading><DescriptorName UI="D008488" MajorTopicYN="N">Medical Illustration</DescriptorName>
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<MeshHeading><DescriptorName UI="D008953" MajorTopicYN="N">Models, Anatomic</DescriptorName>
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<MeshHeading><DescriptorName UI="D012016" MajorTopicYN="N">Reference Values</DescriptorName>
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<MeshHeading><DescriptorName UI="D015203" MajorTopicYN="N">Reproducibility of Results</DescriptorName>
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