Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage

Detalhes bibliográficos
Autor(a) principal: Mondelli, Rafael Francisco Lia
Data de Publicação: 2009
Outros Autores: Ishikiriama, Sérgio Kiyoshi, Oliveira Filho, Otávio de, Mondelli, José
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of applied oral science (Online)
Texto Completo: https://www.revistas.usp.br/jaos/article/view/3665
Resumo: OBJECTIVES: This in vitro study evaluated the fracture resistance of weakened human premolars (MOD cavity preparation and pulp chamber roof removal) restored with condensable resin composite with and without cusp coverage. MATERIAL AND METHODS: Thirty human maxillary premolars were divided into three groups: Group A (control), sound teeth; Group B, wide MOD cavities prepared and the pulp chamber roof removed and restored with resin composite without cusp coverage; Group C, same as Group B with 2.0 mm of buccal and palatal cusps reduced and restored with the same resin. The teeth were included in metal rings with self-curing acrylic resin, stored in water for 24 h and thereafter subjected to a compressive axial load in a universal testing machine at 0.5 mm/min. RESULTS: The mean fracture resistance values ± standart deviation (kgf) were: group A: 151.40 ± 55.32, group B: 60.54 ± 12.61, group C: 141.90 ± 30.82. Statistically significant differences were found only between Group B and the other groups (p
id USP-17_313e75e49403237d07ed00f822d2e281
oai_identifier_str oai:revistas.usp.br:article/3665
network_acronym_str USP-17
network_name_str Journal of applied oral science (Online)
repository_id_str
spelling Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage Composite resinsNonvital toothCompressive strength OBJECTIVES: This in vitro study evaluated the fracture resistance of weakened human premolars (MOD cavity preparation and pulp chamber roof removal) restored with condensable resin composite with and without cusp coverage. MATERIAL AND METHODS: Thirty human maxillary premolars were divided into three groups: Group A (control), sound teeth; Group B, wide MOD cavities prepared and the pulp chamber roof removed and restored with resin composite without cusp coverage; Group C, same as Group B with 2.0 mm of buccal and palatal cusps reduced and restored with the same resin. The teeth were included in metal rings with self-curing acrylic resin, stored in water for 24 h and thereafter subjected to a compressive axial load in a universal testing machine at 0.5 mm/min. RESULTS: The mean fracture resistance values ± standart deviation (kgf) were: group A: 151.40 ± 55.32, group B: 60.54 ± 12.61, group C: 141.90 ± 30.82. Statistically significant differences were found only between Group B and the other groups (pUniversidade de São Paulo. Faculdade de Odontologia de Bauru2009-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/366510.1590/S1678-77572009000300006Journal of Applied Oral Science; Vol. 17 No. 3 (2009); 161-165 Journal of Applied Oral Science; Vol. 17 Núm. 3 (2009); 161-165 Journal of Applied Oral Science; v. 17 n. 3 (2009); 161-165 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/3665/4355Copyright (c) 2009 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessMondelli, Rafael Francisco LiaIshikiriama, Sérgio KiyoshiOliveira Filho, Otávio deMondelli, José2012-04-27T12:04:43Zoai:revistas.usp.br:article/3665Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2012-04-27T12:04:43Journal of applied oral science (Online) - Universidade de São Paulo (USP)false
dc.title.none.fl_str_mv Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
title Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
spellingShingle Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
Mondelli, Rafael Francisco Lia
Composite resins
Nonvital tooth
Compressive strength
title_short Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
title_full Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
title_fullStr Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
title_full_unstemmed Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
title_sort Fracture resistance of weakened teeth restored with condensable resin with and without cusp coverage
author Mondelli, Rafael Francisco Lia
author_facet Mondelli, Rafael Francisco Lia
Ishikiriama, Sérgio Kiyoshi
Oliveira Filho, Otávio de
Mondelli, José
author_role author
author2 Ishikiriama, Sérgio Kiyoshi
Oliveira Filho, Otávio de
Mondelli, José
author2_role author
author
author
dc.contributor.author.fl_str_mv Mondelli, Rafael Francisco Lia
Ishikiriama, Sérgio Kiyoshi
Oliveira Filho, Otávio de
Mondelli, José
dc.subject.por.fl_str_mv Composite resins
Nonvital tooth
Compressive strength
topic Composite resins
Nonvital tooth
Compressive strength
description OBJECTIVES: This in vitro study evaluated the fracture resistance of weakened human premolars (MOD cavity preparation and pulp chamber roof removal) restored with condensable resin composite with and without cusp coverage. MATERIAL AND METHODS: Thirty human maxillary premolars were divided into three groups: Group A (control), sound teeth; Group B, wide MOD cavities prepared and the pulp chamber roof removed and restored with resin composite without cusp coverage; Group C, same as Group B with 2.0 mm of buccal and palatal cusps reduced and restored with the same resin. The teeth were included in metal rings with self-curing acrylic resin, stored in water for 24 h and thereafter subjected to a compressive axial load in a universal testing machine at 0.5 mm/min. RESULTS: The mean fracture resistance values ± standart deviation (kgf) were: group A: 151.40 ± 55.32, group B: 60.54 ± 12.61, group C: 141.90 ± 30.82. Statistically significant differences were found only between Group B and the other groups (p
publishDate 2009
dc.date.none.fl_str_mv 2009-06-01
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://www.revistas.usp.br/jaos/article/view/3665
10.1590/S1678-77572009000300006
url https://www.revistas.usp.br/jaos/article/view/3665
identifier_str_mv 10.1590/S1678-77572009000300006
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv https://www.revistas.usp.br/jaos/article/view/3665/4355
dc.rights.driver.fl_str_mv Copyright (c) 2009 Journal of Applied Oral Science
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Copyright (c) 2009 Journal of Applied Oral Science
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Odontologia de Bauru
dc.source.none.fl_str_mv Journal of Applied Oral Science; Vol. 17 No. 3 (2009); 161-165
Journal of Applied Oral Science; Vol. 17 Núm. 3 (2009); 161-165
Journal of Applied Oral Science; v. 17 n. 3 (2009); 161-165
1678-7765
1678-7757
reponame:Journal of applied oral science (Online)
instname:Universidade de São Paulo (USP)
instacron:USP
instname_str Universidade de São Paulo (USP)
instacron_str USP
institution USP
reponame_str Journal of applied oral science (Online)
collection Journal of applied oral science (Online)
repository.name.fl_str_mv Journal of applied oral science (Online) - Universidade de São Paulo (USP)
repository.mail.fl_str_mv ||jaos@usp.br
_version_ 1800221674722820096

Registros relacionados