Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Dental Journal |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402018000400347 |
Resumo: | Abstract The aim of this study was to evaluate the influence of the coefficient of thermal expansion (CTE or α) and glass transition temperature (Tg) of three veneering ceramics used with zirconia frameworks of full-arch fixed prostheses. The generation of residual stresses and linear contraction after the simulation of the cooling process and mechanical loading were measured. The analysis was based on the finite element method in three-dimensional model of a maxillary full-arch fixed prosthesis with zirconia framework (e.max ZirCAD) and veneer by felsdpathic ceramics (GEC - IPS e.max Ceram, GVM - Vita VM9 and GLC - Lava Ceram). The linear contraction simulation was performed by cooling the structures from the Tg of each veneer ceramic at room temperature (25°C). A loading of 100 N on the occlusal region of the first molar was performed. The magnitude of the maximum principal stress (smax) and linear contraction were evaluated. The levels of CTE mismatch between veneering ceramics and framework showed no relevant influence on smax and linear contraction. The Tg values of the veneer ceramic showed to be directly proportional to amount of smax and linear contraction. The GEC presented the highest values of smax and linear contraction. The GVM and GLC did not present significant differences between them. In conclusion, GVM was similar to GLC, while GEC presented differences in relation to other veneer ceramics in terms of residual stress and linear contraction. |
id |
FUNORP-1_96bebc16f5998b3d954fc002bd4a69c8 |
---|---|
oai_identifier_str |
oai:scielo:S0103-64402018000400347 |
network_acronym_str |
FUNORP-1 |
network_name_str |
Brazilian Dental Journal |
repository_id_str |
|
spelling |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Frameworkveneer ceramicfinite element analysisdental implantcomplete denturezirconiaAbstract The aim of this study was to evaluate the influence of the coefficient of thermal expansion (CTE or α) and glass transition temperature (Tg) of three veneering ceramics used with zirconia frameworks of full-arch fixed prostheses. The generation of residual stresses and linear contraction after the simulation of the cooling process and mechanical loading were measured. The analysis was based on the finite element method in three-dimensional model of a maxillary full-arch fixed prosthesis with zirconia framework (e.max ZirCAD) and veneer by felsdpathic ceramics (GEC - IPS e.max Ceram, GVM - Vita VM9 and GLC - Lava Ceram). The linear contraction simulation was performed by cooling the structures from the Tg of each veneer ceramic at room temperature (25°C). A loading of 100 N on the occlusal region of the first molar was performed. The magnitude of the maximum principal stress (smax) and linear contraction were evaluated. The levels of CTE mismatch between veneering ceramics and framework showed no relevant influence on smax and linear contraction. The Tg values of the veneer ceramic showed to be directly proportional to amount of smax and linear contraction. The GEC presented the highest values of smax and linear contraction. The GVM and GLC did not present significant differences between them. In conclusion, GVM was similar to GLC, while GEC presented differences in relation to other veneer ceramics in terms of residual stress and linear contraction.Fundação Odontológica de Ribeirão Preto2018-08-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402018000400347Brazilian Dental Journal v.29 n.4 2018reponame:Brazilian Dental Journalinstname:Fundação Odontológica de Ribeirão Preto (FUNORP)instacron:FUNORP10.1590/0103-6440201801990info:eu-repo/semantics/openAccessReginato,Vagner FlávioKemmoku,Daniel TakanoriCaldas¹,Ricardo ArminiBacchi³,AtaísPfeifer,Carmem SilviaConsani,Rafael Leonardo Xediekeng2018-11-07T00:00:00Zoai:scielo:S0103-64402018000400347Revistahttps://www.scielo.br/j/bdj/https://old.scielo.br/oai/scielo-oai.phpbdj@forp.usp.br||sergio@fosjc.unesp.br1806-47600103-6440opendoar:2018-11-07T00:00Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP)false |
dc.title.none.fl_str_mv |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
title |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
spellingShingle |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework Reginato,Vagner Flávio veneer ceramic finite element analysis dental implant complete denture zirconia |
title_short |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
title_full |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
title_fullStr |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
title_full_unstemmed |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
title_sort |
Characterization of Residual Stresses in Veneering Ceramics for Prostheses with Zirconia Framework |
author |
Reginato,Vagner Flávio |
author_facet |
Reginato,Vagner Flávio Kemmoku,Daniel Takanori Caldas¹,Ricardo Armini Bacchi³,Ataís Pfeifer,Carmem Silvia Consani,Rafael Leonardo Xediek |
author_role |
author |
author2 |
Kemmoku,Daniel Takanori Caldas¹,Ricardo Armini Bacchi³,Ataís Pfeifer,Carmem Silvia Consani,Rafael Leonardo Xediek |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Reginato,Vagner Flávio Kemmoku,Daniel Takanori Caldas¹,Ricardo Armini Bacchi³,Ataís Pfeifer,Carmem Silvia Consani,Rafael Leonardo Xediek |
dc.subject.por.fl_str_mv |
veneer ceramic finite element analysis dental implant complete denture zirconia |
topic |
veneer ceramic finite element analysis dental implant complete denture zirconia |
description |
Abstract The aim of this study was to evaluate the influence of the coefficient of thermal expansion (CTE or α) and glass transition temperature (Tg) of three veneering ceramics used with zirconia frameworks of full-arch fixed prostheses. The generation of residual stresses and linear contraction after the simulation of the cooling process and mechanical loading were measured. The analysis was based on the finite element method in three-dimensional model of a maxillary full-arch fixed prosthesis with zirconia framework (e.max ZirCAD) and veneer by felsdpathic ceramics (GEC - IPS e.max Ceram, GVM - Vita VM9 and GLC - Lava Ceram). The linear contraction simulation was performed by cooling the structures from the Tg of each veneer ceramic at room temperature (25°C). A loading of 100 N on the occlusal region of the first molar was performed. The magnitude of the maximum principal stress (smax) and linear contraction were evaluated. The levels of CTE mismatch between veneering ceramics and framework showed no relevant influence on smax and linear contraction. The Tg values of the veneer ceramic showed to be directly proportional to amount of smax and linear contraction. The GEC presented the highest values of smax and linear contraction. The GVM and GLC did not present significant differences between them. In conclusion, GVM was similar to GLC, while GEC presented differences in relation to other veneer ceramics in terms of residual stress and linear contraction. |
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=S0103-64402018000400347 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-64402018000400347 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-6440201801990 |
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 |
Fundação Odontológica de Ribeirão Preto |
publisher.none.fl_str_mv |
Fundação Odontológica de Ribeirão Preto |
dc.source.none.fl_str_mv |
Brazilian Dental Journal v.29 n.4 2018 reponame:Brazilian Dental Journal instname:Fundação Odontológica de Ribeirão Preto (FUNORP) instacron:FUNORP |
instname_str |
Fundação Odontológica de Ribeirão Preto (FUNORP) |
instacron_str |
FUNORP |
institution |
FUNORP |
reponame_str |
Brazilian Dental Journal |
collection |
Brazilian Dental Journal |
repository.name.fl_str_mv |
Brazilian Dental Journal - Fundação Odontológica de Ribeirão Preto (FUNORP) |
repository.mail.fl_str_mv |
bdj@forp.usp.br||sergio@fosjc.unesp.br |
_version_ |
1754204095255674880 |