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

Brazilian Oral Research
Fabrício Mezzomo CollaresSusana Maria Werner Samuel

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 <...Continue Reading

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Citations

Jun 4, 2019·Clinical Oral Investigations·Isadora Martini GarciaFabrício Mezzomo Collares
May 10, 2018·Journal of Applied Oral Science : Revista FOB·Natasha Lamego BrandãoEduardo Moreira da Silva
Mar 21, 2019·Brazilian Oral Research·Isadora Martini GarciaFabrício Mezzomo Collares
Nov 28, 2020·Dental Materials : Official Publication of the Academy of Dental Materials·Michele StürmerFabrício M Collares

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