Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/10255842.2018.1560428 http://hdl.handle.net/11449/188697 |
Resumo: | To evaluate the stress behavior of ceramic fragment restoration, varying the thickness of the cement layer and intraoral temperature variation. A solid model of a upper lateral incisor was obtained and a defect at enamel distal/incisal edge was restored with a ceramic fragment. Based on this initial model, 4 different models (M) were built: M1–absence of cement layer (CL) (0 μm of thickness); M2–CL with an uniform thickness of 50 μm; M3–CL with 50 μm at the margin of ceramics and 100 μm in the inner area far from margins; M4–CL with 50 μm at the margin of ceramics and 200 μm in the inner area far from margins. The environment temperature changed from 5 °C to 50 °C in 4 increments. The finite element analysis was performed. Increase the cement layer thickness generated higher stress levels on ceramic surface in all temperatures, as well as on cement interface. In general hot temperature was the worst scenario for ceramic fragments integrity, since tensile and compressive stress were more intense. The maximum principal stress on ceramic fragment was found 90 MPa for M4 at 50 °C, followed for M3 (87 Mpa). For CL, the peak of stress was found for M3 at 5 °C (47 MPa). Is it possible to conclude that thick resin cement layer contribute to higher stress concentration on ceramic fragment, and extremely hot temperatures increase the risk of structural failure, since both ceramic and \cl are exposed to higher compressive and tensile stresses. |
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Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restorationceramic fragment;Dental ceramicfinite element analysisminimally invasive dentistryresin cement;To evaluate the stress behavior of ceramic fragment restoration, varying the thickness of the cement layer and intraoral temperature variation. A solid model of a upper lateral incisor was obtained and a defect at enamel distal/incisal edge was restored with a ceramic fragment. Based on this initial model, 4 different models (M) were built: M1–absence of cement layer (CL) (0 μm of thickness); M2–CL with an uniform thickness of 50 μm; M3–CL with 50 μm at the margin of ceramics and 100 μm in the inner area far from margins; M4–CL with 50 μm at the margin of ceramics and 200 μm in the inner area far from margins. The environment temperature changed from 5 °C to 50 °C in 4 increments. The finite element analysis was performed. Increase the cement layer thickness generated higher stress levels on ceramic surface in all temperatures, as well as on cement interface. In general hot temperature was the worst scenario for ceramic fragments integrity, since tensile and compressive stress were more intense. The maximum principal stress on ceramic fragment was found 90 MPa for M4 at 50 °C, followed for M3 (87 Mpa). For CL, the peak of stress was found for M3 at 5 °C (47 MPa). Is it possible to conclude that thick resin cement layer contribute to higher stress concentration on ceramic fragment, and extremely hot temperatures increase the risk of structural failure, since both ceramic and \cl are exposed to higher compressive and tensile stresses.Department of Dental Materials and Prosthodontics Araçatuba Dental School Unesp–Univ Estadual PaulistaSchool of Dentistry Centro Universitário do Norte PaulistaDepartment of Restorative Dentistry Araçatuba Dental School Unesp–Univ Estadual PaulistaDepartment of Dentistry Federal University of Rio Grande do Norte Ciências Odontologicas Post Graduation Program OdontológicaPost-Graduation Program in Dental Prosthodontics Innovation SchoolDepartment of Dental Materials and Prosthodontics Araçatuba Dental School Unesp–Univ Estadual PaulistaDepartment of Restorative Dentistry Araçatuba Dental School Unesp–Univ Estadual PaulistaUniversidade Estadual Paulista (Unesp)Centro Universitário do Norte PaulistaCiências Odontologicas Post Graduation Program OdontológicaInnovation SchoolMartini, Ana Paula [UNESP]de Souza, Fernando Isquierdo [UNESP]Anchieta, Rodolfo Bruniera [UNESP]de Almeida, Erika OliveiraFreitas Junior, Amilcar ChagasRocha, Eduardo Passos [UNESP]2019-10-06T16:16:21Z2019-10-06T16:16:21Z2019-03-12info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article409-417http://dx.doi.org/10.1080/10255842.2018.1560428Computer Methods in Biomechanics and Biomedical Engineering, v. 22, n. 4, p. 409-417, 2019.1476-82591025-5842http://hdl.handle.net/11449/18869710.1080/10255842.2018.15604282-s2.0-85061048878Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengComputer Methods in Biomechanics and Biomedical Engineeringinfo:eu-repo/semantics/openAccess2021-10-22T19:10:49Zoai:repositorio.unesp.br:11449/188697Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-22T19:10:49Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
title |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
spellingShingle |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration Martini, Ana Paula [UNESP] ceramic fragment; Dental ceramic finite element analysis minimally invasive dentistry resin cement; |
title_short |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
title_full |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
title_fullStr |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
title_full_unstemmed |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
title_sort |
Influence of resin cement thickness and temperature variation on mechanical behavior of dental ceramic fragment restoration |
author |
Martini, Ana Paula [UNESP] |
author_facet |
Martini, Ana Paula [UNESP] de Souza, Fernando Isquierdo [UNESP] Anchieta, Rodolfo Bruniera [UNESP] de Almeida, Erika Oliveira Freitas Junior, Amilcar Chagas Rocha, Eduardo Passos [UNESP] |
author_role |
author |
author2 |
de Souza, Fernando Isquierdo [UNESP] Anchieta, Rodolfo Bruniera [UNESP] de Almeida, Erika Oliveira Freitas Junior, Amilcar Chagas Rocha, Eduardo Passos [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Centro Universitário do Norte Paulista Ciências Odontologicas Post Graduation Program Odontológica Innovation School |
dc.contributor.author.fl_str_mv |
Martini, Ana Paula [UNESP] de Souza, Fernando Isquierdo [UNESP] Anchieta, Rodolfo Bruniera [UNESP] de Almeida, Erika Oliveira Freitas Junior, Amilcar Chagas Rocha, Eduardo Passos [UNESP] |
dc.subject.por.fl_str_mv |
ceramic fragment; Dental ceramic finite element analysis minimally invasive dentistry resin cement; |
topic |
ceramic fragment; Dental ceramic finite element analysis minimally invasive dentistry resin cement; |
description |
To evaluate the stress behavior of ceramic fragment restoration, varying the thickness of the cement layer and intraoral temperature variation. A solid model of a upper lateral incisor was obtained and a defect at enamel distal/incisal edge was restored with a ceramic fragment. Based on this initial model, 4 different models (M) were built: M1–absence of cement layer (CL) (0 μm of thickness); M2–CL with an uniform thickness of 50 μm; M3–CL with 50 μm at the margin of ceramics and 100 μm in the inner area far from margins; M4–CL with 50 μm at the margin of ceramics and 200 μm in the inner area far from margins. The environment temperature changed from 5 °C to 50 °C in 4 increments. The finite element analysis was performed. Increase the cement layer thickness generated higher stress levels on ceramic surface in all temperatures, as well as on cement interface. In general hot temperature was the worst scenario for ceramic fragments integrity, since tensile and compressive stress were more intense. The maximum principal stress on ceramic fragment was found 90 MPa for M4 at 50 °C, followed for M3 (87 Mpa). For CL, the peak of stress was found for M3 at 5 °C (47 MPa). Is it possible to conclude that thick resin cement layer contribute to higher stress concentration on ceramic fragment, and extremely hot temperatures increase the risk of structural failure, since both ceramic and \cl are exposed to higher compressive and tensile stresses. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T16:16:21Z 2019-10-06T16:16:21Z 2019-03-12 |
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/10.1080/10255842.2018.1560428 Computer Methods in Biomechanics and Biomedical Engineering, v. 22, n. 4, p. 409-417, 2019. 1476-8259 1025-5842 http://hdl.handle.net/11449/188697 10.1080/10255842.2018.1560428 2-s2.0-85061048878 |
url |
http://dx.doi.org/10.1080/10255842.2018.1560428 http://hdl.handle.net/11449/188697 |
identifier_str_mv |
Computer Methods in Biomechanics and Biomedical Engineering, v. 22, n. 4, p. 409-417, 2019. 1476-8259 1025-5842 10.1080/10255842.2018.1560428 2-s2.0-85061048878 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Computer Methods in Biomechanics and Biomedical Engineering |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
409-417 |
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) |
repository.mail.fl_str_mv |
|
_version_ |
1797790191111372800 |