Bibliographic citations
Ajalcriña, T., (2016). Efecto in vitro de la bebida carbonatada sobre la microdureza superficial de una resina microhíbrida y una resina de nanopartículas [Tesis, Universidad Privada Antenor Orrego - UPAO]. https://hdl.handle.net/20.500.12759/1883
Ajalcriña, T., Efecto in vitro de la bebida carbonatada sobre la microdureza superficial de una resina microhíbrida y una resina de nanopartículas [Tesis]. : Universidad Privada Antenor Orrego - UPAO; 2016. https://hdl.handle.net/20.500.12759/1883
@misc{renati/375998,
title = "Efecto in vitro de la bebida carbonatada sobre la microdureza superficial de una resina microhíbrida y una resina de nanopartículas",
author = "Ajalcriña Chang Kee, Tatiana M.",
publisher = "Universidad Privada Antenor Orrego - UPAO",
year = "2016"
}
This research dealt benchmarking microhardness in vitro 3M ESPE micro hybrid resin filtek Z250® and filtek Z350® 3M ESPE reinforced with nanoparticles, due to the action of carbonated water. For experimental development corresponding to randomized, cylindrical test pieces of 4 mm in diameter were prepared by 2 mm in height; 10 were made with micro hybrid composite resin Z250 and 10 with Z350 resin reinforced with nanoparticles, according to ISO 4090. The corresponding study groups were placed on blocks carbonated beverage for a period of 10 minutes at room temperature, the blocks of the control group were kept in saline. After this time the blocks were rinsed and dried, before being stored in saline. The experiment was performed once a day for 7 days in a 24 hour interval. Measurements of both initial and final microhardness were performed on a Leco mark microhardness LMV-50V with loads of 100 g scale and Vickers hardness, the statistical analysis determined significant differences in the experimental groups. The characterization of the resins was carried out by SEM microscopy. The micro hybrid resin showed a higher average microhardness compared to the nanoparticle reinforced resin; however the micro hybrid resin after being subjected to the degrading action of the carbonated drink significantly decreased, moreover the nanoparticle reinforced resin showed no significant change in average surface hardness.
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