Citas bibligráficas
Rodriguez, K., (2018). Microfiltración marginal in vitro de restauraciones clase V con resina compuesta en dientes clareados con peróxido de hidrógeno al 35% y peróxido de carbamida al 20% a los 15 y 30 días [Tesis, Universidad Privada Antenor Orrego - UPAO]. https://hdl.handle.net/20.500.12759/4038
Rodriguez, K., Microfiltración marginal in vitro de restauraciones clase V con resina compuesta en dientes clareados con peróxido de hidrógeno al 35% y peróxido de carbamida al 20% a los 15 y 30 días [Tesis]. : Universidad Privada Antenor Orrego - UPAO; 2018. https://hdl.handle.net/20.500.12759/4038
@misc{renati/376899,
title = "Microfiltración marginal in vitro de restauraciones clase V con resina compuesta en dientes clareados con peróxido de hidrógeno al 35% y peróxido de carbamida al 20% a los 15 y 30 días",
author = "Rodriguez Tello, Kevin",
publisher = "Universidad Privada Antenor Orrego - UPAO",
year = "2018"
}
The purpose of this study was to compare the in vitro marginal microfiltration of class V restorations with composite resin in teeth cleared with 35% hydrogen peroxide and 20% carbamide peroxide at 15 and 30 days. A longitudinal, comparative and experimental prospective study was designed. We used 40 premolars, which were subjected to a dental clearance on the vestibular and lingual faces. Two groups of 20 teeth were formed for each type of clearing agent: Group 1: 35% Hydrogen Peroxide and Group 2: 20% Carbamide Peroxide, which was divided according to the waiting time for the restoration: 15 and 30 days. To measure microfiltration, the dye method was used with Chinese ink and then the specimens sectioned in vestibular lingual sense were subject to observation in the stereoscopic. For the statistical analysis we used the criterion independence comparison test with a significance level of 0.05. It was found that the restorations of the teeth subjected to hydrogen peroxide have statistically different degree of microfiltration between both times, 15 and 30 days (p = 0.015); however, carbamide peroxide did not have significant differences (p = 0.05). Likewise, after 15 days, hydrogen peroxide presented a higher percentage in grade 2 (45%), unlike carbamide peroxide, which presented a higher percentage in grade 0 (55%), finding significant differences between brighteners (p = 0.021), contrary to 30 days, where no significant differences were found between them (p = 0.546).
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