Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels

Detalhes bibliográficos
Autor(a) principal: Tribst, João Paulo Mendes
Data de Publicação: 2017
Outros Autores: Dal Piva, Amanda Maria de Oliveira, Shibli, Jamil Awad, Borges, Alexandre Luiz Souto, Tango, Rubens Nisie
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1590/1807-3107bor-2017.vol31.0096
http://hdl.handle.net/11449/177074
Resumo: This study evaluated the effect of implantoplasty on different bone insertion levels of exposed implants. A model of the Bone Level Tapered implant (Straumann Institute, Waldenburg, Switzerland) was created through the Rhinoceros software (version 5.0 SR8, McNeel North America, Seattle, WA, USA). The abutment was fixed to the implant through a retention screw and a monolithic crown was modeled over a cementation line. Six models were created with increasing portions of the implant threads exposed: C1 (1 mm), C2 (2 mm), C3 (3 mm), C4 (4 mm), C5 (5 mm) and C6 (6 mm). The models were made in duplicates and one of each pair was used to simulate implantoplasty, by removing the threads (I1, I2, I3, I4, I5 and I6). The final geometry was exported in STEP format to ANSYS (ANSYS 15.0, ANSYS Inc., Houston, USA) and all materials were considered homogeneous, isotropic and linearly elastic. To assess distribution of stress forces, an axial load (300 N) was applied on the cusp. For the periodontal insert, the strains increased in the peri-implant region according to the size of the exposed portion and independent of the threads' presence. The difference between groups with and without implantoplasty was less than 10%. Critical values were found when the inserted portion was smaller than the exposed portion. In the exposed implants, the stress generated on the implant and retention screw was higher in the models that received implantoplasty. For the bone tissue, exposure of the implant's thread was a damaging factor, independent of implantoplasty. Implantoplasty treatment can be safely used to control peri-implantitis if at least half of the implant is still inserted in bone.
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spelling Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levelsThis study evaluated the effect of implantoplasty on different bone insertion levels of exposed implants. A model of the Bone Level Tapered implant (Straumann Institute, Waldenburg, Switzerland) was created through the Rhinoceros software (version 5.0 SR8, McNeel North America, Seattle, WA, USA). The abutment was fixed to the implant through a retention screw and a monolithic crown was modeled over a cementation line. Six models were created with increasing portions of the implant threads exposed: C1 (1 mm), C2 (2 mm), C3 (3 mm), C4 (4 mm), C5 (5 mm) and C6 (6 mm). The models were made in duplicates and one of each pair was used to simulate implantoplasty, by removing the threads (I1, I2, I3, I4, I5 and I6). The final geometry was exported in STEP format to ANSYS (ANSYS 15.0, ANSYS Inc., Houston, USA) and all materials were considered homogeneous, isotropic and linearly elastic. To assess distribution of stress forces, an axial load (300 N) was applied on the cusp. For the periodontal insert, the strains increased in the peri-implant region according to the size of the exposed portion and independent of the threads' presence. The difference between groups with and without implantoplasty was less than 10%. Critical values were found when the inserted portion was smaller than the exposed portion. In the exposed implants, the stress generated on the implant and retention screw was higher in the models that received implantoplasty. For the bone tissue, exposure of the implant's thread was a damaging factor, independent of implantoplasty. Implantoplasty treatment can be safely used to control peri-implantitis if at least half of the implant is still inserted in bone.Universidade Estadual Paulista - UNESP, Institute of Science and Technology, Department of Dental Materials and Prosthodontics, São José dos Campos, SP, BrazilUniversidade de Guarulhos - UnG, Dental Research Division, Department of Periodontology and Oral Implantology, Guarulhos, SP, BrazilUniversidade Estadual Paulista (Unesp)Tribst, João Paulo MendesDal Piva, Amanda Maria de OliveiraShibli, Jamil AwadBorges, Alexandre Luiz SoutoTango, Rubens Nisie2018-12-11T17:23:44Z2018-12-11T17:23:44Z2017-12-07info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlee96application/pdfhttp://dx.doi.org/10.1590/1807-3107bor-2017.vol31.0096Brazilian oral research, v. 31, p. e96-.1807-3107http://hdl.handle.net/11449/17707410.1590/1807-3107bor-2017.vol31.0096S1806-832420170001002812-s2.0-85039839718S1806-83242017000100281.pdf91387166804406030000-0003-0946-1826Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian oral researchinfo:eu-repo/semantics/openAccess2024-01-06T06:27:55Zoai:repositorio.unesp.br:11449/177074Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:15:45.064501Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
title Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
spellingShingle Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
Tribst, João Paulo Mendes
title_short Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
title_full Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
title_fullStr Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
title_full_unstemmed Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
title_sort Influence of implantoplasty on stress distribution of exposed implants at different bone insertion levels
author Tribst, João Paulo Mendes
author_facet Tribst, João Paulo Mendes
Dal Piva, Amanda Maria de Oliveira
Shibli, Jamil Awad
Borges, Alexandre Luiz Souto
Tango, Rubens Nisie
author_role author
author2 Dal Piva, Amanda Maria de Oliveira
Shibli, Jamil Awad
Borges, Alexandre Luiz Souto
Tango, Rubens Nisie
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Tribst, João Paulo Mendes
Dal Piva, Amanda Maria de Oliveira
Shibli, Jamil Awad
Borges, Alexandre Luiz Souto
Tango, Rubens Nisie
description This study evaluated the effect of implantoplasty on different bone insertion levels of exposed implants. A model of the Bone Level Tapered implant (Straumann Institute, Waldenburg, Switzerland) was created through the Rhinoceros software (version 5.0 SR8, McNeel North America, Seattle, WA, USA). The abutment was fixed to the implant through a retention screw and a monolithic crown was modeled over a cementation line. Six models were created with increasing portions of the implant threads exposed: C1 (1 mm), C2 (2 mm), C3 (3 mm), C4 (4 mm), C5 (5 mm) and C6 (6 mm). The models were made in duplicates and one of each pair was used to simulate implantoplasty, by removing the threads (I1, I2, I3, I4, I5 and I6). The final geometry was exported in STEP format to ANSYS (ANSYS 15.0, ANSYS Inc., Houston, USA) and all materials were considered homogeneous, isotropic and linearly elastic. To assess distribution of stress forces, an axial load (300 N) was applied on the cusp. For the periodontal insert, the strains increased in the peri-implant region according to the size of the exposed portion and independent of the threads' presence. The difference between groups with and without implantoplasty was less than 10%. Critical values were found when the inserted portion was smaller than the exposed portion. In the exposed implants, the stress generated on the implant and retention screw was higher in the models that received implantoplasty. For the bone tissue, exposure of the implant's thread was a damaging factor, independent of implantoplasty. Implantoplasty treatment can be safely used to control peri-implantitis if at least half of the implant is still inserted in bone.
publishDate 2017
dc.date.none.fl_str_mv 2017-12-07
2018-12-11T17:23:44Z
2018-12-11T17:23:44Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/1807-3107bor-2017.vol31.0096
Brazilian oral research, v. 31, p. e96-.
1807-3107
http://hdl.handle.net/11449/177074
10.1590/1807-3107bor-2017.vol31.0096
S1806-83242017000100281
2-s2.0-85039839718
S1806-83242017000100281.pdf
9138716680440603
0000-0003-0946-1826
url http://dx.doi.org/10.1590/1807-3107bor-2017.vol31.0096
http://hdl.handle.net/11449/177074
identifier_str_mv Brazilian oral research, v. 31, p. e96-.
1807-3107
10.1590/1807-3107bor-2017.vol31.0096
S1806-83242017000100281
2-s2.0-85039839718
S1806-83242017000100281.pdf
9138716680440603
0000-0003-0946-1826
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Brazilian oral research
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv e96
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
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