Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis
Autor(a) principal: | |
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Data de Publicação: | 2018 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Revista de Odontologia da UNESP |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772018000400237 |
Resumo: | Abstract Introduction Implant inclinations can be corrected using mini abutments at different angulations. Objective To analyze the influence of external hexagon implants in different inclinations (3 levels) on the microstrain distribution generated around three implants. Method A geometric bone model was created through Rhinoceros CAD software (version 5.0 SR8, Mcneel North America, Seattle, WA, USA). Three implants (4.1 × 13 mm) were modeled and inserted inside the substrate at three different inclinations: 0º, 17º and 30º. Next, all groups received mini conical abutments, fixation screws and a simplified prosthesis. The final geometry was exported in STEP format to analysis software and all materials were considered homogeneous, isotropic and linearly elastic. An axial load (300N) was applied on the center of the prosthesis. An in vitro study was conducted with same conditions and groups for validating the tridimentional model. Result Stress was concentrated on the external area of the implants, in contact with the cortical bone and external hexagon. For the bone simulator, the strain increased in the peri-implant region according to the increase in the implant’s inclination. The difference between groups was significant (p = 0.000). The 30º group presented higher stress and strain concentration. Conclusion The microstrain and stress increase around implants directly proportional to the increase of the installation angle. |
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Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysisFinite element analysesdental implantfixed prosthesisAbstract Introduction Implant inclinations can be corrected using mini abutments at different angulations. Objective To analyze the influence of external hexagon implants in different inclinations (3 levels) on the microstrain distribution generated around three implants. Method A geometric bone model was created through Rhinoceros CAD software (version 5.0 SR8, Mcneel North America, Seattle, WA, USA). Three implants (4.1 × 13 mm) were modeled and inserted inside the substrate at three different inclinations: 0º, 17º and 30º. Next, all groups received mini conical abutments, fixation screws and a simplified prosthesis. The final geometry was exported in STEP format to analysis software and all materials were considered homogeneous, isotropic and linearly elastic. An axial load (300N) was applied on the center of the prosthesis. An in vitro study was conducted with same conditions and groups for validating the tridimentional model. Result Stress was concentrated on the external area of the implants, in contact with the cortical bone and external hexagon. For the bone simulator, the strain increased in the peri-implant region according to the increase in the implant’s inclination. The difference between groups was significant (p = 0.000). The 30º group presented higher stress and strain concentration. Conclusion The microstrain and stress increase around implants directly proportional to the increase of the installation angle.Universidade Estadual Paulista Júlio de Mesquita Filho2018-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772018000400237Revista de Odontologia da UNESP v.47 n.4 2018reponame:Revista de Odontologia da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESP10.1590/1807-2577.05418info:eu-repo/semantics/openAccessRODRIGUES,Vinícius AnéasTRIBST,João Paulo MendesSANTIS,Leandro RuivoBORGES,Alexandre Luiz SoutoNISHIOKA,Renato Sussumueng2018-11-23T00:00:00Zoai:scielo:S1807-25772018000400237Revistahttps://www.revodontolunesp.com.br/PUBhttps://old.scielo.br/oai/scielo-oai.php||adriana@foar.unesp.br1807-25770101-1774opendoar:2018-11-23T00:00Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
title |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
spellingShingle |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis RODRIGUES,Vinícius Anéas Finite element analyses dental implant fixed prosthesis |
title_short |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
title_full |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
title_fullStr |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
title_full_unstemmed |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
title_sort |
Biomechanical effect of inclined implants in fixed prosthesis: strain and stress analysis |
author |
RODRIGUES,Vinícius Anéas |
author_facet |
RODRIGUES,Vinícius Anéas TRIBST,João Paulo Mendes SANTIS,Leandro Ruivo BORGES,Alexandre Luiz Souto NISHIOKA,Renato Sussumu |
author_role |
author |
author2 |
TRIBST,João Paulo Mendes SANTIS,Leandro Ruivo BORGES,Alexandre Luiz Souto NISHIOKA,Renato Sussumu |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
RODRIGUES,Vinícius Anéas TRIBST,João Paulo Mendes SANTIS,Leandro Ruivo BORGES,Alexandre Luiz Souto NISHIOKA,Renato Sussumu |
dc.subject.por.fl_str_mv |
Finite element analyses dental implant fixed prosthesis |
topic |
Finite element analyses dental implant fixed prosthesis |
description |
Abstract Introduction Implant inclinations can be corrected using mini abutments at different angulations. Objective To analyze the influence of external hexagon implants in different inclinations (3 levels) on the microstrain distribution generated around three implants. Method A geometric bone model was created through Rhinoceros CAD software (version 5.0 SR8, Mcneel North America, Seattle, WA, USA). Three implants (4.1 × 13 mm) were modeled and inserted inside the substrate at three different inclinations: 0º, 17º and 30º. Next, all groups received mini conical abutments, fixation screws and a simplified prosthesis. The final geometry was exported in STEP format to analysis software and all materials were considered homogeneous, isotropic and linearly elastic. An axial load (300N) was applied on the center of the prosthesis. An in vitro study was conducted with same conditions and groups for validating the tridimentional model. Result Stress was concentrated on the external area of the implants, in contact with the cortical bone and external hexagon. For the bone simulator, the strain increased in the peri-implant region according to the increase in the implant’s inclination. The difference between groups was significant (p = 0.000). The 30º group presented higher stress and strain concentration. Conclusion The microstrain and stress increase around implants directly proportional to the increase of the installation angle. |
publishDate |
2018 |
dc.date.none.fl_str_mv |
2018-08-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772018000400237 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1807-25772018000400237 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1807-2577.05418 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
publisher.none.fl_str_mv |
Universidade Estadual Paulista Júlio de Mesquita Filho |
dc.source.none.fl_str_mv |
Revista de Odontologia da UNESP v.47 n.4 2018 reponame:Revista de Odontologia da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Revista de Odontologia da UNESP |
collection |
Revista de Odontologia da UNESP |
repository.name.fl_str_mv |
Revista de Odontologia da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
||adriana@foar.unesp.br |
_version_ |
1748958560819085312 |