Microhardness of three nanohybrid composite resins according to polishability

Authors

Keywords:

RESIN, HARDNESS, DENTAL POLISHING, COMPOSITE.

Abstract

Introduction: minimally invasive dentistry is currently a new paradigm supported by scientific evidence-based dentistry.

Objective: to determine the surface hardness of three nano hybrid resins in relation to their polishing moment.

Methods: 60 resin discs were made according to ISO 4049 and we placed resin, divided into 3 groups of 20 each. One group of Filtek Z350 nanohybrid resin, a second group of Tetric N ceram resin and another of Brilliant resin. Half of each group was polished immediately and the other half 24 hours after polymerization. The Vickers microhardness was determined with a load of 200 g for 10 s. The data were analyzed with the Anova test.

Results: polishing after 24 h obtained surfaces with higher surface hardness compared to immediate polishing, being statistically significant (P= 0,0001). The Filtek Z350 nanohybrid resin presented higher surface hardness than the Tetric N ceram resins and Brillian resin for immediate polishing and polishing after 24 hours, being statistically significant in both cases.

Conclusion: the polishing after 24 hours of polymerization presented values with higher surface hardness for the three nanohybrid resins studied.

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References

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Published

2025-04-13

How to Cite

1.
Suárez-López JS, Fiallos-Sánchez JE, Carrera-Guanga GL. Microhardness of three nanohybrid composite resins according to polishability. Rev Ciencias Médicas [Internet]. 2025 Apr. 13 [cited 2025 Sep. 17];29(1):e6730. Available from: https://revcmpinar.sld.cu/index.php/publicaciones/article/view/6730

Issue

Vol. 29 No. 1 (2025): Publicación Continua

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ORIGINAL ARTICLES

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