MECHANICAL CHARACTERISTICS OF TWO NANOPARTICULATED RESINS: CONVENTIONAL AND BULK-FILL

Authors

  • Gustavo Adolfo Martins Mendes
  • Janielle de Sousa Soares
  • Natália Gomes Monteiro Universidade Evangélica de Goiás-UnieEvangélica
  • Eduardo Acácio de Sousa
  • Juliane Guimarães de Carvalho

DOI:

https://doi.org/10.37951/2317-2835.2021v26i1.p94-101

Abstract

Introduction: Dental composites must have sufficient physical and mechanical properties in order to withstand the challenging scenario found in oral cavity. Objective: this article aims to evaluate the mechanical resistance of two nanoparticulate resins: conventional and bulk-fill. Material and methods: 40 specimens were made according the terms of ADA no 27 and divided into 2 groups containing 20 samples for each group, G1 (Bulk-Fill) and G2 (Z350). Then, laboratory tests were performed to assess the resistance to diametrical traction and flexural resistance in a universal testing machine Instron 5667. Results: For the resistance to diametrical traction, the Bulk-Fill group presented higher values compared to the Z350 (p <0.05). As for flexural strength, resins showed similar mechanical behavior (p = 0.159). Conclusion: The bulk-fill resin demonstrated greater mechanical resistance when compared to conventional resin.

Keywords: Composite resins. Dental Materials. Tensile Strength.

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Published

2021-12-22

Issue

Vol. 26 No. 1 (2021): SCIENTIFIC INVESTIGATION IN DENTISTRY - JAN/DEC. 2021

Section

ARTIGOS ORIGINAIS

License

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