Influence of core materials in the microleakage of cast crowns
Autor(a) principal: | |
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Data de Publicação: | 2010 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Brazilian Dental Science |
Texto Completo: | https://ojs.ict.unesp.br/index.php/cob/article/view/394 |
Resumo: | Endodontically treated teeth can be restored with prosthetic crowns over cast metal cores or prefabricated posts with composite resin cores. Prosthetic failure is frequently observed possibly due to microleakage. To verify the influence of the core materials in the microleakage of cast crowns, this research studied three experimental conditions: (a) teeth with partial dental remaining core with prefabricated post and partial composite resin cores, (b) teeth with cast metal posts/cores, and (c) teeth with prefabricated posts and composite resin cores. Teeth preparations were standardized, duplicated and the crowns were made in NiCr alloy, which were cemented with zinc phosphate cement. The specimens were submitted to thermocycling and mechanical stresses. They were immerged in a 0,05% aqueous solution of basic fuchsin for 8 hours during 3 days. The crowns were sliced buccal-lingually, and their microleakage was evaluated by glass magnification, according to a score scale. There was no statistical difference between conditions (a) and (c). Microleakage at cervical region of axial wall was observed in both cases. Condition (b) showed higher microleakage, which reached medium third of axial wall. |
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Brazilian Dental Science |
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Influence of core materials in the microleakage of cast crownsEndodontically treated teeth can be restored with prosthetic crowns over cast metal cores or prefabricated posts with composite resin cores. Prosthetic failure is frequently observed possibly due to microleakage. To verify the influence of the core materials in the microleakage of cast crowns, this research studied three experimental conditions: (a) teeth with partial dental remaining core with prefabricated post and partial composite resin cores, (b) teeth with cast metal posts/cores, and (c) teeth with prefabricated posts and composite resin cores. Teeth preparations were standardized, duplicated and the crowns were made in NiCr alloy, which were cemented with zinc phosphate cement. The specimens were submitted to thermocycling and mechanical stresses. They were immerged in a 0,05% aqueous solution of basic fuchsin for 8 hours during 3 days. The crowns were sliced buccal-lingually, and their microleakage was evaluated by glass magnification, according to a score scale. There was no statistical difference between conditions (a) and (c). Microleakage at cervical region of axial wall was observed in both cases. Condition (b) showed higher microleakage, which reached medium third of axial wall.Institute of Science and Technology of São José dos Campos2010-08-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://ojs.ict.unesp.br/index.php/cob/article/view/39410.14295/bds.2005.v8i4.394Brazilian Dental Science; Vol. 8 No. 4 (2005)Brazilian Dental Science; v. 8 n. 4 (2005)2178-6011reponame:Brazilian Dental Scienceinstname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)instacron:UNESPporhttps://ojs.ict.unesp.br/index.php/cob/article/view/394/321Campos, Tomie Nakakuki deArita, Cristiane KimieMissaka, ReinaldoAdachi, Lena KatekawaAdachi, Eduardo Makotoinfo:eu-repo/semantics/openAccess2022-08-02T17:51:44Zoai:ojs.pkp.sfu.ca:article/394Revistahttp://bds.ict.unesp.br/PUBhttp://ojs.fosjc.unesp.br/index.php/index/oaisergio@fosjc.unesp.br||sergio@fosjc.unesp.br2178-60112178-6011opendoar:2022-11-08T16:29:34.774623Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP)true |
dc.title.none.fl_str_mv |
Influence of core materials in the microleakage of cast crowns |
title |
Influence of core materials in the microleakage of cast crowns |
spellingShingle |
Influence of core materials in the microleakage of cast crowns Campos, Tomie Nakakuki de |
title_short |
Influence of core materials in the microleakage of cast crowns |
title_full |
Influence of core materials in the microleakage of cast crowns |
title_fullStr |
Influence of core materials in the microleakage of cast crowns |
title_full_unstemmed |
Influence of core materials in the microleakage of cast crowns |
title_sort |
Influence of core materials in the microleakage of cast crowns |
author |
Campos, Tomie Nakakuki de |
author_facet |
Campos, Tomie Nakakuki de Arita, Cristiane Kimie Missaka, Reinaldo Adachi, Lena Katekawa Adachi, Eduardo Makoto |
author_role |
author |
author2 |
Arita, Cristiane Kimie Missaka, Reinaldo Adachi, Lena Katekawa Adachi, Eduardo Makoto |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Campos, Tomie Nakakuki de Arita, Cristiane Kimie Missaka, Reinaldo Adachi, Lena Katekawa Adachi, Eduardo Makoto |
description |
Endodontically treated teeth can be restored with prosthetic crowns over cast metal cores or prefabricated posts with composite resin cores. Prosthetic failure is frequently observed possibly due to microleakage. To verify the influence of the core materials in the microleakage of cast crowns, this research studied three experimental conditions: (a) teeth with partial dental remaining core with prefabricated post and partial composite resin cores, (b) teeth with cast metal posts/cores, and (c) teeth with prefabricated posts and composite resin cores. Teeth preparations were standardized, duplicated and the crowns were made in NiCr alloy, which were cemented with zinc phosphate cement. The specimens were submitted to thermocycling and mechanical stresses. They were immerged in a 0,05% aqueous solution of basic fuchsin for 8 hours during 3 days. The crowns were sliced buccal-lingually, and their microleakage was evaluated by glass magnification, according to a score scale. There was no statistical difference between conditions (a) and (c). Microleakage at cervical region of axial wall was observed in both cases. Condition (b) showed higher microleakage, which reached medium third of axial wall. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010-08-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/394 10.14295/bds.2005.v8i4.394 |
url |
https://ojs.ict.unesp.br/index.php/cob/article/view/394 |
identifier_str_mv |
10.14295/bds.2005.v8i4.394 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://ojs.ict.unesp.br/index.php/cob/article/view/394/321 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
publisher.none.fl_str_mv |
Institute of Science and Technology of São José dos Campos |
dc.source.none.fl_str_mv |
Brazilian Dental Science; Vol. 8 No. 4 (2005) Brazilian Dental Science; v. 8 n. 4 (2005) 2178-6011 reponame:Brazilian Dental Science instname:Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Brazilian Dental Science |
collection |
Brazilian Dental Science |
repository.name.fl_str_mv |
Brazilian Dental Science - Universidade Estadual Paulista Júlio de Mesquita Filho (UNESP) |
repository.mail.fl_str_mv |
sergio@fosjc.unesp.br||sergio@fosjc.unesp.br |
_version_ |
1788346896981426176 |