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Universal cements: dual activated and chemically activated

Objective: The aim of the present study was to assess the bond strength of universal cements cured either dually or chemically only. Methods: Three cements were assessed using different types of application: dual activated (DA) or chemically activated (CA). In total 80 dentin blocks were used, obtai...

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Autores principales: de Lima, Eliane, Santos, Ricardo, Durão, Márcia, Nascimento, Armiliana, Braz, Rodivan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433229/
https://www.ncbi.nlm.nih.gov/pubmed/28642922
http://dx.doi.org/10.1080/23337931.2016.1221314
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author de Lima, Eliane
Santos, Ricardo
Durão, Márcia
Nascimento, Armiliana
Braz, Rodivan
author_facet de Lima, Eliane
Santos, Ricardo
Durão, Márcia
Nascimento, Armiliana
Braz, Rodivan
author_sort de Lima, Eliane
collection PubMed
description Objective: The aim of the present study was to assess the bond strength of universal cements cured either dually or chemically only. Methods: Three cements were assessed using different types of application: dual activated (DA) or chemically activated (CA). In total 80 dentin blocks were used, obtained through the enamel wear of the lingual and buccal surfaces of bovine incisors. Standard cone-shaped cavity preparations were created using diamond burs. Subsequently, indirect restoration blocks were designed with Filtek Z350 (3M ESPE) composite resin. The teeth were divided into two groups (DA and CA) and then subdivided into four subgroups (n = 10) prior to cementation with the respective products: Duo-Link (Bisco); RelyX Ultimate (3M ESPE); Nexus 3 (Kerr) and conventional RelyX ARC (3M ESPE) as the control. The cementation in the PA group was applied following the manufacturer’s instructions. The CA group was cemented in a darkroom to avoid exposure to light. They were stored in distilled water at 37 °C for 24 h and submitted to the push-out test. Data were analyzed by two-way ANOVA and Tukey’s post-hoc test (p < .05). Results: The greatest bond strength results were obtained for photoactivated universal cements. Conclusion: Chemical activation is not sufficient to ensure acceptable bond strength.
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spelling pubmed-54332292017-06-22 Universal cements: dual activated and chemically activated de Lima, Eliane Santos, Ricardo Durão, Márcia Nascimento, Armiliana Braz, Rodivan Acta Biomater Odontol Scand Original Article Objective: The aim of the present study was to assess the bond strength of universal cements cured either dually or chemically only. Methods: Three cements were assessed using different types of application: dual activated (DA) or chemically activated (CA). In total 80 dentin blocks were used, obtained through the enamel wear of the lingual and buccal surfaces of bovine incisors. Standard cone-shaped cavity preparations were created using diamond burs. Subsequently, indirect restoration blocks were designed with Filtek Z350 (3M ESPE) composite resin. The teeth were divided into two groups (DA and CA) and then subdivided into four subgroups (n = 10) prior to cementation with the respective products: Duo-Link (Bisco); RelyX Ultimate (3M ESPE); Nexus 3 (Kerr) and conventional RelyX ARC (3M ESPE) as the control. The cementation in the PA group was applied following the manufacturer’s instructions. The CA group was cemented in a darkroom to avoid exposure to light. They were stored in distilled water at 37 °C for 24 h and submitted to the push-out test. Data were analyzed by two-way ANOVA and Tukey’s post-hoc test (p < .05). Results: The greatest bond strength results were obtained for photoactivated universal cements. Conclusion: Chemical activation is not sufficient to ensure acceptable bond strength. Taylor & Francis 2016-09-23 /pmc/articles/PMC5433229/ /pubmed/28642922 http://dx.doi.org/10.1080/23337931.2016.1221314 Text en © 2016 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. http://creativecommons.org/licenses/by-nc/4.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
de Lima, Eliane
Santos, Ricardo
Durão, Márcia
Nascimento, Armiliana
Braz, Rodivan
Universal cements: dual activated and chemically activated
title Universal cements: dual activated and chemically activated
title_full Universal cements: dual activated and chemically activated
title_fullStr Universal cements: dual activated and chemically activated
title_full_unstemmed Universal cements: dual activated and chemically activated
title_short Universal cements: dual activated and chemically activated
title_sort universal cements: dual activated and chemically activated
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5433229/
https://www.ncbi.nlm.nih.gov/pubmed/28642922
http://dx.doi.org/10.1080/23337931.2016.1221314
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