Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
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/80504 |
Resumo: | OBJECTIVE: The aim of this in vitro study was to evaluate the microtensile bond strength (µTBS) to dentin of two different restorative systems: silorane-based (P90), and methacrylate-based (P60), using two cavity models. MATERIAL AND METHODS: Occlusal enamel of 40 human third molars was removed to expose flat dentin surface. Class I cavities with 4 mm mesial-distal width, 3 mm buccal-lingual width and 3 mm depth (C-factor=4.5) were prepared in 20 teeth, which were divided into two groups (n=10) restored with P60 and P90, bulk-filled after dentin treatment according to manufacturer's instructions. Flat buccal dentin surfaces were prepared in the 20 remaining teeth (C-factor=0.2) and restored with resin blocks measuring 4x3x3 mm using the two restorative systems (n=10). The teeth were sectioned into samples with area between 0.85 and 1.25 mm2 that were submitted to µTBS testing, using a universal testing machine (EMIC) at speed of 0.5 mm/min. Fractured specimens were analyzed under stereomicroscope and categorized according to fracture pattern. Data were analyzed using ANOVA and Tukey Kramer tests. RESULTS: For flat surfaces, P60 obtained higher bond strength values compared with P90. However, for Class I cavities, P60 showed significant reduction in bond strength (p;0.05), or between Class I Cavity and Flat Surface group, considering P90 restorative system (p>;0.05). Regarding fracture pattern, there was no statistical difference among groups (p=0.0713) and 56.3% of the fractures were adhesive. CONCLUSION: It was concluded that methacrylate-based composite µTBS was influenced by cavity models, and the use of silorane-based composite led to similar bond strength values compared to the methacrylate-based composite in cavities with high C-factor. |
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Journal of applied oral science (Online) |
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Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models OBJECTIVE: The aim of this in vitro study was to evaluate the microtensile bond strength (µTBS) to dentin of two different restorative systems: silorane-based (P90), and methacrylate-based (P60), using two cavity models. MATERIAL AND METHODS: Occlusal enamel of 40 human third molars was removed to expose flat dentin surface. Class I cavities with 4 mm mesial-distal width, 3 mm buccal-lingual width and 3 mm depth (C-factor=4.5) were prepared in 20 teeth, which were divided into two groups (n=10) restored with P60 and P90, bulk-filled after dentin treatment according to manufacturer's instructions. Flat buccal dentin surfaces were prepared in the 20 remaining teeth (C-factor=0.2) and restored with resin blocks measuring 4x3x3 mm using the two restorative systems (n=10). The teeth were sectioned into samples with area between 0.85 and 1.25 mm2 that were submitted to µTBS testing, using a universal testing machine (EMIC) at speed of 0.5 mm/min. Fractured specimens were analyzed under stereomicroscope and categorized according to fracture pattern. Data were analyzed using ANOVA and Tukey Kramer tests. RESULTS: For flat surfaces, P60 obtained higher bond strength values compared with P90. However, for Class I cavities, P60 showed significant reduction in bond strength (p;0.05), or between Class I Cavity and Flat Surface group, considering P90 restorative system (p>;0.05). Regarding fracture pattern, there was no statistical difference among groups (p=0.0713) and 56.3% of the fractures were adhesive. CONCLUSION: It was concluded that methacrylate-based composite µTBS was influenced by cavity models, and the use of silorane-based composite led to similar bond strength values compared to the methacrylate-based composite in cavities with high C-factor. Universidade de São Paulo. Faculdade de Odontologia de Bauru2013-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/jaos/article/view/8050410.1590/1679-775720130120Journal of Applied Oral Science; Vol. 21 No. 5 (2013); 452-459 Journal of Applied Oral Science; Vol. 21 Núm. 5 (2013); 452-459 Journal of Applied Oral Science; v. 21 n. 5 (2013); 452-459 1678-77651678-7757reponame:Journal of applied oral science (Online)instname:Universidade de São Paulo (USP)instacron:USPenghttps://www.revistas.usp.br/jaos/article/view/80504/84167Copyright (c) 2013 Journal of Applied Oral Scienceinfo:eu-repo/semantics/openAccessIsaac, Stephano Zerlottini Bergamin, Ana Claudia Pietrobom Turssi, Cecilia Pedroso Amaral, Flavia Lucisano Botelho do Basting, Roberta Tarkany Franca, Fabiana Mantovani Gomes 2014-05-08T12:55:26Zoai:revistas.usp.br:article/80504Revistahttp://www.scielo.br/jaosPUBhttps://www.revistas.usp.br/jaos/oai||jaos@usp.br1678-77651678-7757opendoar:2014-05-08T12:55:26Journal of applied oral science (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
title |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
spellingShingle |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models Isaac, Stephano Zerlottini |
title_short |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
title_full |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
title_fullStr |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
title_full_unstemmed |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
title_sort |
Evaluation of bond strength of silorane and methacrylate based restorative systems to dentin using different cavity models |
author |
Isaac, Stephano Zerlottini |
author_facet |
Isaac, Stephano Zerlottini Bergamin, Ana Claudia Pietrobom Turssi, Cecilia Pedroso Amaral, Flavia Lucisano Botelho do Basting, Roberta Tarkany Franca, Fabiana Mantovani Gomes |
author_role |
author |
author2 |
Bergamin, Ana Claudia Pietrobom Turssi, Cecilia Pedroso Amaral, Flavia Lucisano Botelho do Basting, Roberta Tarkany Franca, Fabiana Mantovani Gomes |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Isaac, Stephano Zerlottini Bergamin, Ana Claudia Pietrobom Turssi, Cecilia Pedroso Amaral, Flavia Lucisano Botelho do Basting, Roberta Tarkany Franca, Fabiana Mantovani Gomes |
description |
OBJECTIVE: The aim of this in vitro study was to evaluate the microtensile bond strength (µTBS) to dentin of two different restorative systems: silorane-based (P90), and methacrylate-based (P60), using two cavity models. MATERIAL AND METHODS: Occlusal enamel of 40 human third molars was removed to expose flat dentin surface. Class I cavities with 4 mm mesial-distal width, 3 mm buccal-lingual width and 3 mm depth (C-factor=4.5) were prepared in 20 teeth, which were divided into two groups (n=10) restored with P60 and P90, bulk-filled after dentin treatment according to manufacturer's instructions. Flat buccal dentin surfaces were prepared in the 20 remaining teeth (C-factor=0.2) and restored with resin blocks measuring 4x3x3 mm using the two restorative systems (n=10). The teeth were sectioned into samples with area between 0.85 and 1.25 mm2 that were submitted to µTBS testing, using a universal testing machine (EMIC) at speed of 0.5 mm/min. Fractured specimens were analyzed under stereomicroscope and categorized according to fracture pattern. Data were analyzed using ANOVA and Tukey Kramer tests. RESULTS: For flat surfaces, P60 obtained higher bond strength values compared with P90. However, for Class I cavities, P60 showed significant reduction in bond strength (p;0.05), or between Class I Cavity and Flat Surface group, considering P90 restorative system (p>;0.05). Regarding fracture pattern, there was no statistical difference among groups (p=0.0713) and 56.3% of the fractures were adhesive. CONCLUSION: It was concluded that methacrylate-based composite µTBS was influenced by cavity models, and the use of silorane-based composite led to similar bond strength values compared to the methacrylate-based composite in cavities with high C-factor. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-09-01 |
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/80504 10.1590/1679-775720130120 |
url |
https://www.revistas.usp.br/jaos/article/view/80504 |
identifier_str_mv |
10.1590/1679-775720130120 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://www.revistas.usp.br/jaos/article/view/80504/84167 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2013 Journal of Applied Oral Science info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2013 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. 21 No. 5 (2013); 452-459 Journal of Applied Oral Science; Vol. 21 Núm. 5 (2013); 452-459 Journal of Applied Oral Science; v. 21 n. 5 (2013); 452-459 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_ |
1800221678058340352 |