Comparación de la rugosidad superficial de restauraciones de resinas nanorelleno (Filtek Z350) según las diferentes técnicas de pulido: estudio in vitro
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2016
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es
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Universidad Andrés Bello
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Antecedentes: Actualmente existe una gran variedad de sistemas de pulido de resinas, pero sin un consenso respecto a qué técnica brinda menor rugosidad superficial, por lo que al momento de realizar el pulido, el odontólogo debe guiarse sólo por indicaciones del fabricante. No existen estudios con respecto a la relación de estas resinas nanorelleno (Filtek Z350) y la rugosidad superficial generada al combinar sistemas de pulido o al aplicar sellador de resina (Permaseal).
Justificación: Se requiere mejorar la eficacia del pulido en las restauraciones de resina, para poder identificar la técnica que permita producir una superficie con menos rugosidad superficial, aumentando la longevidad del material y por ende el éxito del tratamiento.
Objetivo: Determinar la efectividad de diferentes técnicas de pulido sobre la rugosidad superficial de resina nanorelleno (Filtek Z350). Material y Métodos: Estudio experimental in vitro, transversal y analítico, cuyas muestras estuvo constituida por 50 cilindros de resina nanorelleno (Filtek Z350). Se clasificaron en 10 grupos de estudio; un grupo control y 9 grupos tratados: Sof- Lex, KENDA C.G.I., Fresas de Pulido, Astrobrush, Permaseal, Sof-Lex + KENDA C.G.I, Sof-Lex + Astrobrush, KENDA + Astrobrush y Sof-Lex + KENDA C.G.I + Astrobrush. Se evaluó la rugosidad superficial de cada muestra 5 veces con el rugosímetro SURFTEST- III, Mitutoyo. Para el análisis de los datos, se utilizó un software estadístico SPSS v.24, evaluando la eficacia de pulido de los distintos sistemas, mediante técnicas de análisis descriptivos e inferenciales, con uso de T-Student para evaluación de diferencias de medias de las distintas muestras vs grupo control. Finalmente, se construyó una matriz con los distintos valores medios de las rugosidades superficiales obtenidas.
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Resultados Observados: Al finalizar el estudio se pudo determinar que el sistema menos eficaz de pulido correspondió al grupo de fresas (0.99 μm) y el mejor sistema correspondió a los discos Sof-Lex (0.44 μm). El grupo Sof-Lex + Astrobrush, como combinación de sistemas de pulido, resultó el de menor rugosidad superficial (0.18 μm).
Background: Now a days there are a lot of different polishing systems for resin composite, but there isn’t any consent about which system provides a lower superficial roughness, so it is necessary for the dentist to read the manufacturers indications. There are no studies that relates the superficial roughness of nanoparticles resin (Filtek Z350) with different combinations of polishing systems and the application of resin sealer (Permaseal). Justification: It is required to improve the efficacy of polishing, so that it can be identified the technique which provides less superficial roughness, increasing the material’s longevity and the success of the restoration. Purpose: Determine the effectiveness of different polishing techniques over the superficial roughness of nanofilled resin (Filtek Z350). Materials and Method: This experimental, transversal and analytic study, consisted in 50 samples of nanofilled resin (Filtek Z350) that were classified in to 10 groups: a control group and 9 groups that were treated with: Sof- Lex, KENDA C.G.I., Polishing drills, Astrobrush, Permaseal, Sof-Lex + KENDA C.G.I, Sof-Lex + Astrobrush, KENDA + Astrobrush or Sof-Lex + KENDA C.G.I + Astrobrush. The superficial roughness was measured 5 times per sample with the profilometer SURFTEST- III, Mitutoyo. To analyze the data, it was used the statistics software SPSS v.24, evaluating the polishing efficacy of different systems, it was applied descriptive and inferential studies techniques, using T-Student to evaluate the difference of medias of the different samples vs control group. Finally, it was constructed a matrix with the different middle value of the obtained superficial roughness. Observed Results: It was possible to determine that the worst polishing system was the polishing drill group (0.99 µm) and the best one was Sof-Lex Discs (0.44 µm). The Sof-Lex + Astrobrush group was the group with combination of systems that had the lowest superficial roughness (0.18 µm).
Background: Now a days there are a lot of different polishing systems for resin composite, but there isn’t any consent about which system provides a lower superficial roughness, so it is necessary for the dentist to read the manufacturers indications. There are no studies that relates the superficial roughness of nanoparticles resin (Filtek Z350) with different combinations of polishing systems and the application of resin sealer (Permaseal). Justification: It is required to improve the efficacy of polishing, so that it can be identified the technique which provides less superficial roughness, increasing the material’s longevity and the success of the restoration. Purpose: Determine the effectiveness of different polishing techniques over the superficial roughness of nanofilled resin (Filtek Z350). Materials and Method: This experimental, transversal and analytic study, consisted in 50 samples of nanofilled resin (Filtek Z350) that were classified in to 10 groups: a control group and 9 groups that were treated with: Sof- Lex, KENDA C.G.I., Polishing drills, Astrobrush, Permaseal, Sof-Lex + KENDA C.G.I, Sof-Lex + Astrobrush, KENDA + Astrobrush or Sof-Lex + KENDA C.G.I + Astrobrush. The superficial roughness was measured 5 times per sample with the profilometer SURFTEST- III, Mitutoyo. To analyze the data, it was used the statistics software SPSS v.24, evaluating the polishing efficacy of different systems, it was applied descriptive and inferential studies techniques, using T-Student to evaluate the difference of medias of the different samples vs control group. Finally, it was constructed a matrix with the different middle value of the obtained superficial roughness. Observed Results: It was possible to determine that the worst polishing system was the polishing drill group (0.99 µm) and the best one was Sof-Lex Discs (0.44 µm). The Sof-Lex + Astrobrush group was the group with combination of systems that had the lowest superficial roughness (0.18 µm).
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Tesis (Cirujano Dentista)
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Materiales Dentales