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[Flexural strength of conventional flowable, bulk fill flowable and highly filled flowable resin composites: in vitro study.]

Authors: Sulca Gonzales, Edith Liliana; López-Flores, Ana Isabel;

[Flexural strength of conventional flowable, bulk fill flowable and highly filled flowable resin composites: in vitro study.]

Abstract

Objetivo: Evaluar y comparar la resistencia flexural de las resinas fluida convencional, fluida bulk fill y fluida de alta carga. Materiales y métodos: Se confeccionaron treinta especímenes de 2 mm x 2 mm x 25 mm de las resinas fluidas Tetric N-Flow (TNF), Filtek Bulk Fill Flowable Restorative (FBF) y Beautifil Flow Plus F00 (BFP), las cuales se distribuyeron en tres grupos, de acuerdo con la marca (n = 10), y se almacenaron en agua destilada durante 24 horas a 37 °C. Se realizó la prueba de flexión de 3 puntos, de acuerdo con la norma ISO 4049, en una máquina de ensayo universal a una velocidad de 0,5 mm/min hasta la fractura. Los resultados se evaluaron con las pruebas de Anova y Tukey. P < 0,05. Resultados: Se encontró diferencias estadísticamente significativas entre los grupos con un valor de p = 0,011. Los grupos que mostraron diferencias estadísticamente significativas fueron los grupos BFP y TNF (p = 0,015) y los grupos BFP y FBF (p = 0,035), mientras que entre los grupos TNF y FBF no se encontró diferencia estadísticamente significativa. Conclusión: La resina fluida de alta carga presenta mejor resistencia flexural comparada con las resinas fluida convencional y fluida bulk fill, mientas que las resinas fluidas convencional y bulk fill no muestran diferencia estadísticamente significativa.

Objective: To evaluate and compare the flexural strength of conventional flowable, bulk fill flowable and highly filled flowable resins. Materials and methods: Thirty 2mm x 2mm x 25mm specimens of Tetric N-Flow (TNF), Filtek Bulk Fill Flowable Restorative (FBF) and Beautifil Flow Plus F00 (BFP) flowable resins were made up; they were distributed into three groups according to brand (n=10) and stored in distilled water for 24 hours at 37ºC. The 3-point bending test according to ISO 4049 was performed on a universal testing machine at a speed of 0.5 mm/min until fracture. The results were evaluated with Anova and Tukey tests. P<0.05. Results: Statistically significant differences were found between the groups with a value of p=0.011. According to the statistical analysis, the groups that showed statistically significant differences were the BFP and TNF groups (p=0.015) and the BFP and FBF groups (p=0.035), while no statistically significant difference was found in the TNF and FBF groups. Conclusion: The high-filled flowable resin presents better flexural strength compared to the conventional flowable and bulk fill flowable resins, while the conventional and bulk fill flowable resins have no statistically significant difference.

Keywords

resistencia flexural, propiedades mecanicas, composite resins, mechanic properties, flexural resistance, resinas compuestas

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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