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Influence of addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride to an experimental adhesive

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Influence of addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride to an experimental adhesive

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Título Influence of addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride to an experimental adhesive
Autor Collares, Fabrício Mezzomo
Leitune, Vicente Castelo Branco
Franken, Patrícia
Parolo, Clarissa Cavalcanti Fatturi
Ogliari, Fabricio Aulo
Samuel, Susana Maria Werner
Abstract The aim of this study was to develop an experimental adhesive with addition of [2-(methacryloyloxy)ethyl]trimethylammonium chloride (METAC) and to evaluate its mechanical and biological properties and its in vitro antibacterial activity. An experimental adhesive resin was formulated with Bis-GMA, TEGDMA, and HEMA. The antibacterial monomer was added at concentrations of 1%, 2.5%, and 5% (METAC groups). A group without METAC addition was used as control. The experimental adhesives were evaluated as to their antibacterial potential against Streptococcus mutans, degree of conversion, and softening in ethanol for 2 hours. The data were analyzed by one-way ANOVA, Tukey’s post-hoc test, and the paired Student’s t-test (significance level of 0.05). METAC showed antibacterial activity against S. mutans at all concentrations (p < 0.05). There was no statistical difference across METAC groups (p > 0.05). The 1%, 2.5%, and 5% groups yielded the highest mean values for degree of conversion (p < 0.05). The 1% group did not differ from the control group (p > 0.05). There was no statistical difference in baseline microhardness values (p > 0.05) and microhardness values after immersion in ethanol were lower than at baseline for all groups (p < 0.05). There was no statistical difference in the reduction of Knoop hardness number (KHN) after immersion in ethanol for any of the groups (p > 0.05). The results of the present study indicate that METAC is a promising antibacterial agent when added to an adhesive system.
Contido em Brazilian oral research. São Paulo. Vol. 31 (2017), p. e31, 1-6
Assunto Antibacterianos
Materiais odontologicos : Adesivos
[en] Adhesives
[en] Anti-infective agents
[en] Dentin-bonding agents
Origem Nacional
Tipo Artigo de periódico
URI http://hdl.handle.net/10183/166141
Arquivos Descrição Formato
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