Comparación in vitro de la profundidad de curado de una resina nano-híbrida fotoactivada con luz halógena versus luz LED

Ana Gabriela Guerrero Bravo; Raúl Edison Chumi Terán

doi:10.16925/od.v13i26.2042

In Vitro Comparison of the Curing Depth of a Nanohybrid Resin Photoactivated by Halogen Light Versus led Light

Research Articles

https://doi.org/10.16925/od.v13i26.2042

Ana Gabriela Guerrero Bravo Ver Biografía

Universidad de Educación

Raúl Edison Chumi Terán Ver Biografía

Universidad de Educación

Aim: To compare the curing depth of a nanohybrid resin photoactivated by halogen light versus

led light according to iso 4049.

Materials and methods: Current cross-sectional, descriptive, comparative laboratory method. A speci-

men former was used. A strip of celluloid was placed on the base of the specimen former, on which the

resin z 350 xt (3 m), shade a 2 and enamel was put. The height of the specimen former was overfilled, and

a second strip of celluloid was placed on top. The resin was photoactivated by a conventional halogen

lamp and a third-generation led lamp. The specimen was removed from the former and the material

in a plastic state without polymerization was removed with a spatula. The height of the cured material

was measured with the digital micrometer (t304b.w-1220) at an accuracy of +0.01 mm. This test was

performed three times and the average value of the curing depth was obtained. When dividing it by

two, the curing depth was obtained according to iso 4049. Statistical normality tests (Kolmogorov-Smirnov(a) and Shapiro-Wilk) and nonparametric tests (Mann-Whitney) were performed to check if the values follow a normal distribution. The Student’s t test was used to determine if there is a statistically significant difference between the results.

Results: The minimum curing depth value was obtained with the halogen lamp (2.23 mm), unlike

photoactivation by led lamp (2.32 mm).

Conclusion: There are significant differences in the curing depth of a resin when photopolymerized by

halogen light versus led light.

Keywords: photoactivation, iso 4049, curing depth, nanohybrid resins

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In Vitro Comparison of the Curing Depth of a Nanohybrid Resin Photoactivated by Halogen Light Versus led Light. (2017). Revista Nacional De Odontología, 14(26). https://doi.org/10.16925/od.v13i26.2042

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Vol. 14 No. 26 (2018)

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2017-10-13

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