Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1678-77572007000500016 http://hdl.handle.net/11449/32029 |
Resumo: | The aim of this in vitro study was to evaluate the effect of different bur types and acid etching protocols on the shear bond strength (SBS) of a resin modified glass ionomer cement (RM-GIC) to primary dentin. Forty-eight clinically sound human primary molars were selected and randomly assigned to four groups (n=12). In G1, the lingual surface of the teeth was cut with a carbide bur until a 2.0-mm-diameter dentin area was exposed, followed by the application of RM-GIC (Vitremer - 3M/ESPE) prepared according to the manufacturer's instructions. The specimens of G2, received the same treatment of G1, however the dentin was conditioned with phosphoric acid. In groups G3 and G4 the same procedures of G1 and G2 were conducted respectively, nevertheless dentin cutting was made with a diamond bur. The specimens were stored in distilled water at 37 degrees C for 24h, and then tested in a universal testing machine. SBS. data were submitted to 2-way ANOVA (= 5%) and indicated that SBS values of RM-GIC bonded to primary dentin cut with different burs were not statistically different, but the specimens that were conditioned with phosphoric acid presented SBS values significantly higher that those without conditioning. To observe micromorphologic characteristics of the effects of dentin surface cut by diamond or carbide rotary instruments and conditioners treatment, some specimens were examined by scanning electron microscopy. Smear layer was present in all specimens regardless of the type of rotary instrument used for dentin cutting, and specimens etched with phosphoric acid presented more effective removal of smear layer. It was concluded that SBS of a RM-GIC to primary dentin was affected by the acid conditioning but the bur type had no influence. |
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Repositório Institucional da UNESP |
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Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioningglass ionomer cementsmodifieddental instrumentsdentinprymary teethconditioningThe aim of this in vitro study was to evaluate the effect of different bur types and acid etching protocols on the shear bond strength (SBS) of a resin modified glass ionomer cement (RM-GIC) to primary dentin. Forty-eight clinically sound human primary molars were selected and randomly assigned to four groups (n=12). In G1, the lingual surface of the teeth was cut with a carbide bur until a 2.0-mm-diameter dentin area was exposed, followed by the application of RM-GIC (Vitremer - 3M/ESPE) prepared according to the manufacturer's instructions. The specimens of G2, received the same treatment of G1, however the dentin was conditioned with phosphoric acid. In groups G3 and G4 the same procedures of G1 and G2 were conducted respectively, nevertheless dentin cutting was made with a diamond bur. The specimens were stored in distilled water at 37 degrees C for 24h, and then tested in a universal testing machine. SBS. data were submitted to 2-way ANOVA (= 5%) and indicated that SBS values of RM-GIC bonded to primary dentin cut with different burs were not statistically different, but the specimens that were conditioned with phosphoric acid presented SBS values significantly higher that those without conditioning. To observe micromorphologic characteristics of the effects of dentin surface cut by diamond or carbide rotary instruments and conditioners treatment, some specimens were examined by scanning electron microscopy. Smear layer was present in all specimens regardless of the type of rotary instrument used for dentin cutting, and specimens etched with phosphoric acid presented more effective removal of smear layer. It was concluded that SBS of a RM-GIC to primary dentin was affected by the acid conditioning but the bur type had no influence.State Univ São Paulo, Sch Dent Sao Jose Campos, Dept Pediat Dent, Sao Jose Dos Campos, SP, BrazilState Univ São Paulo, Sch Dent Sao Jose Campos, Dept Restorat Dent, Sao Jose Dos Campos, BrazilState Univ São Paulo, Sch Dent Sao Jose Campos, Dept Pediat Dent, Sao Jose Dos Campos, SP, BrazilState Univ São Paulo, Sch Dent Sao Jose Campos, Dept Restorat Dent, Sao Jose Dos Campos, BrazilUniversidade de São Paulo (USP), Faculdade de Odontologia de BauruUniversidade Estadual Paulista (Unesp)Di Nicolo, Rebeca [UNESP]Shintome, Luciana Keiko [UNESP]Myaki, Silvio Issao [UNESP]Nagayassu, Marcos Paulo [UNESP]2014-05-20T15:20:49Z2014-05-20T15:20:49Z2007-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article459-464application/pdfhttp://dx.doi.org/10.1590/S1678-77572007000500016Journal of Applied Oral Science. Bauru-sp: Univ São Paulo Fac Odontologia Bauru, v. 15, n. 5, p. 459-464, 2007.1678-7757http://hdl.handle.net/11449/3202910.1590/S1678-77572007000500016S1678-77572007000500016WOS:000256794600015WOS000256794600015.pdf5608176301307207Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Applied Oral Science1.7090,645info:eu-repo/semantics/openAccess2024-01-21T06:23:37Zoai:repositorio.unesp.br:11449/32029Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-21T06:23:37Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
title |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
spellingShingle |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning Di Nicolo, Rebeca [UNESP] glass ionomer cements modified dental instruments dentin prymary teeth conditioning |
title_short |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
title_full |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
title_fullStr |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
title_full_unstemmed |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
title_sort |
Bond strength of resin modified glass ionomer cement to primary dentin after cutting with different bur types and dentin conditioning |
author |
Di Nicolo, Rebeca [UNESP] |
author_facet |
Di Nicolo, Rebeca [UNESP] Shintome, Luciana Keiko [UNESP] Myaki, Silvio Issao [UNESP] Nagayassu, Marcos Paulo [UNESP] |
author_role |
author |
author2 |
Shintome, Luciana Keiko [UNESP] Myaki, Silvio Issao [UNESP] Nagayassu, Marcos Paulo [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Di Nicolo, Rebeca [UNESP] Shintome, Luciana Keiko [UNESP] Myaki, Silvio Issao [UNESP] Nagayassu, Marcos Paulo [UNESP] |
dc.subject.por.fl_str_mv |
glass ionomer cements modified dental instruments dentin prymary teeth conditioning |
topic |
glass ionomer cements modified dental instruments dentin prymary teeth conditioning |
description |
The aim of this in vitro study was to evaluate the effect of different bur types and acid etching protocols on the shear bond strength (SBS) of a resin modified glass ionomer cement (RM-GIC) to primary dentin. Forty-eight clinically sound human primary molars were selected and randomly assigned to four groups (n=12). In G1, the lingual surface of the teeth was cut with a carbide bur until a 2.0-mm-diameter dentin area was exposed, followed by the application of RM-GIC (Vitremer - 3M/ESPE) prepared according to the manufacturer's instructions. The specimens of G2, received the same treatment of G1, however the dentin was conditioned with phosphoric acid. In groups G3 and G4 the same procedures of G1 and G2 were conducted respectively, nevertheless dentin cutting was made with a diamond bur. The specimens were stored in distilled water at 37 degrees C for 24h, and then tested in a universal testing machine. SBS. data were submitted to 2-way ANOVA (= 5%) and indicated that SBS values of RM-GIC bonded to primary dentin cut with different burs were not statistically different, but the specimens that were conditioned with phosphoric acid presented SBS values significantly higher that those without conditioning. To observe micromorphologic characteristics of the effects of dentin surface cut by diamond or carbide rotary instruments and conditioners treatment, some specimens were examined by scanning electron microscopy. Smear layer was present in all specimens regardless of the type of rotary instrument used for dentin cutting, and specimens etched with phosphoric acid presented more effective removal of smear layer. It was concluded that SBS of a RM-GIC to primary dentin was affected by the acid conditioning but the bur type had no influence. |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-09-01 2014-05-20T15:20:49Z 2014-05-20T15:20:49Z |
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/S1678-77572007000500016 Journal of Applied Oral Science. Bauru-sp: Univ São Paulo Fac Odontologia Bauru, v. 15, n. 5, p. 459-464, 2007. 1678-7757 http://hdl.handle.net/11449/32029 10.1590/S1678-77572007000500016 S1678-77572007000500016 WOS:000256794600015 WOS000256794600015.pdf 5608176301307207 |
url |
http://dx.doi.org/10.1590/S1678-77572007000500016 http://hdl.handle.net/11449/32029 |
identifier_str_mv |
Journal of Applied Oral Science. Bauru-sp: Univ São Paulo Fac Odontologia Bauru, v. 15, n. 5, p. 459-464, 2007. 1678-7757 10.1590/S1678-77572007000500016 S1678-77572007000500016 WOS:000256794600015 WOS000256794600015.pdf 5608176301307207 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Applied Oral Science 1.709 0,645 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
459-464 application/pdf |
dc.publisher.none.fl_str_mv |
Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru |
publisher.none.fl_str_mv |
Universidade de São Paulo (USP), Faculdade de Odontologia de Bauru |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1803650317828489216 |