The influence of eugenol on the microhardness of two commercial composite resins

Authors

  • REV FO Universidade de Passo Fundo

DOI:

https://doi.org/10.5335/rfo.v25i3.13331

Keywords:

resinas compostas; eugenol; polimerização; testes de dureza.

Abstract

Objective: to evaluate, in vitro, the superficial and
deep hardness of two different types of composite
resin when in contact with zinc oxide eugenol
cement (IRM). Method: Charisma® and Vittra® resins
were selected and 80 specimens were made,
40 for each composite brand that were divided
into eight groups (n = 10) according to contact
(immediate, 7 days, 14 days) or no (control group)
with eugenol. A portion of IRM and a ready-made
resin specimen were placed in a dappen pot, which
after setting the temporary restorative material
and removing the placed specimen, generated the
template for making the samples in contact with
eugenol, being stored in water in room temperature
for subgroups 7 and 14 days. In sequence, a
single increment of composite was inserted and
polymerized resin for 40 seconds, generating
specimens that were stored in a dry place to be
submitted to the Vickers microhardness test under
a load of 300 grams, with a penetration time
of 10 seconds. The data obtained were analyzed
by the ANOVA test, at a significance level of p
<0.05. Results: only the Charisma® resin group
that had immediate contact with eugenol did not
reach 80% deep hardness in relation to superficial
hardness. However, for all groups analyzed, both
superficial and deep hardness increased after contact
with eugenol compared to the control group.
Conclusion: eugenol did not negatively influence
the hardness of composite resins.

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References

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Published

2022-02-13

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Section

Artigos

How to Cite

The influence of eugenol on the microhardness of two commercial composite resins. (2022). Revista Da Faculdade De Odontologia - UPF, 25(3), 429-435. https://doi.org/10.5335/rfo.v25i3.13331