Bibliographic citations
Ramirez, P., Toledo, J. (2019). Comparación In Vitro de la resistencia al cizallamiento de estructuras de resina y cerómero con tratamiento de arenado en diferentes tiempos [Tesis, Universidad Peruana de Ciencias Aplicadas (UPC)]. http://hdl.handle.net/10757/648657
Ramirez, P., Toledo, J. Comparación In Vitro de la resistencia al cizallamiento de estructuras de resina y cerómero con tratamiento de arenado en diferentes tiempos [Tesis]. PE: Universidad Peruana de Ciencias Aplicadas (UPC); 2019. http://hdl.handle.net/10757/648657
@misc{renati/1286838,
title = "Comparación In Vitro de la resistencia al cizallamiento de estructuras de resina y cerómero con tratamiento de arenado en diferentes tiempos",
author = "Toledo Chilón, Jannet Rossmery",
publisher = "Universidad Peruana de Ciencias Aplicadas (UPC)",
year = "2019"
}
Objective: Compare In vitro the shear bond strengths of specimens consisting of cemented resin to samples of Ceromer with 3 different times of air abrasion treatment. Materials and Methods: The sample consisted of 45 specimens. The specimens were made up of cylinders of resin (Filtek TM Z350 3M- USA) and the ceromer (Base Dentine VITAVM®LC - Germany). Three (3) groups were formed (n=15): The control group did not receive the air abrasion treatment, the first group received the air abrasion treatment for five seconds, and the second group received the treatment for ten seconds. The air abrasion treatment consisted of aluminum oxide of 50 μm from a distance of 10 mm and with a pressure of 2.5 bares. The data was analyzed through descriptive statistics (mean, median, standard deviation and interquartile range) and the comparison of the variables, shear bond strength and air abrasion time, were analyzed using the Kruskal Wallis test. (p ≤ 0.05). Results: The measurements for the group without air abrasion was 8.40 ± 2.13 Mpa. The group receiving air abrasion treatment for five seconds yielded 9.20± 2.06 Mpa. Finally, the group receiving air abrasion treatment for ten seconds yielded 12.54 ± 3.97 Mpa. Statistically significant differences were observed in the group with 10 seconds of abrasion treatment in comparison to the other groups (p=0.008). The mixed type failures were those that presented the highest percentage at 66.7%. Conclusion: The air abrasion with aluminum oxide for ten seconds on the surface of the ceromer significantly improved the sheer bond strength in comparison to the samples that received 0 and 5 seconds.
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