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Effect of the Bis-Dimethylamino Benzydrol Coinitiator on the Mechanical and Biological Properties of a Composite

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dc.contributor.author Bittencourt, Bruna Fortes
dc.contributor.author Dominguez, John Alexis
dc.contributor.author Pinheiro, Luís Antonio
dc.contributor.author Farago, Paulo Vitor
dc.contributor.author Dos Santos, Elizabete Brasil
dc.contributor.author Campos, Leticia Antonelo
dc.contributor.author Gomes, João Carlos
dc.contributor.author Mongruel Gomes, Osnara Maria
dc.date.accessioned 2019-01-25T15:18:34Z
dc.date.available 2019-01-25T15:18:34Z
dc.date.issued 2017
dc.identifier.uri https://hdl.handle.net/20.500.12866/4644
dc.description.abstract To examine the effect of the alternative coinitiator 4,4'bis dimethylamino benzydrol (BZN) in degree of conversion (DC), mechanical and biological properties of experimental composites. The coinitiator BZN was used in three concentrations (0.2, 0.5 and 1.2%), and the coinitiator DMAEMA was used as control at the same concentrations as above. The molar concentration of camphorquinone (CQ) and coinitiators was kept constant (1:1). The composites were manipulated and submitted to microhardness test (VHN), flexural and compressive strength (in MPa), elastic modulus (GPa), DC (FT-IR) and in vitro cytotoxicity (against 3T3 fibroblastic cells) of the experimental resins. Data were subjected to two-way ANOVA and Tukey post-test (α=0.05). The experimental composite resin with BZN showed higher DC values compared to control DMAEMA groups. For the mechanical properties, microhardness values were higher in BZN groups; flexural strength and elastic modulus were similar between all the groups. Compressive strength for groups BZN0.5 and DMAEMA0.5 were not statistically different, being the lowest values attributed to group BZN0.2. The experimental resins with BZN and DMAEMA were considered nontoxic against 3T3 fibroblasts. The inclusion of the coinitiator BZN in experimental composites was considered nontoxic against 3T3 fibroblast cells, without compromising DC and mechanical properties. en_US
dc.language.iso eng
dc.publisher Fundação Odontológica de Ribeirão Preto
dc.relation.ispartofseries Brazilian Dental Journal
dc.rights info:eu-repo/semantics/restrictedAccess
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
dc.subject Composite Resins en_US
dc.subject Materials Testing en_US
dc.subject 3T3 Cells en_US
dc.subject Amines/chemistry en_US
dc.subject Animals en_US
dc.subject Mice en_US
dc.title Effect of the Bis-Dimethylamino Benzydrol Coinitiator on the Mechanical and Biological Properties of a Composite en_US
dc.type info:eu-repo/semantics/article
dc.identifier.doi https://doi.org/10.1590/0103-6440201701585
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#3.02.14
dc.relation.issn 1806-4760

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