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| Title: | Influência de dois sistemas cerâmicos na polimerização de cimentos resinosos de presa dual. |
| Authors: | BUENO, Albano Luis Novaes |
| ???metadata.dc.advisor???: | AMARAL, Cristiane Mariote |
| Keywords: | Cimentos dentários
Cimentação
Cerâmica
Dureza |
| Issue Date: | 2006 |
| Series/Report no.: | 617.632 B928i |
| Abstract: | The aim of this study was to evaluate the Knoop hardness of dual-cure resin luting agents under different ceramics. The specimens of Rely X ACR (3M ESPE), Eco-Link (Ivoclar) and Panavia F (Kuraray), were prepared and placed under each ceramics systems IPS-Empress and In Ceram with thicknesses of 2 mm and 4mm, simulating occlusal and proximal faces (n&eq;11). Knoop microhardness evaluations were made immediately after light curing, after 24 hours and after 14 days. The specimens were storage in 37°C relative humidity, protected from the light. The results were analyzed using ANOVA and Tukey test at 5% significance. In immediate evaluation the Eco-Link cement have lower hardness than Panavia F with all ceramics, and the Rely X ARC presented lower hardness than Panavia F for In Ceram 4 mm and IPS Empress 4 mm only. After 24 hours the Eco-Link cement showed the lowest microhardness, and the Rely X ARC wasnt different from Panavia F in control group and with In Ceram 2 mm. After 14 days, there were no significant differences between Panavia F and Rely X ARC,and the Eco-Link showed lower hardness than Panavia F, but no significant differences were recorded between Eco-Link and Rely X ARC. For Panavia F and Rely X ARC no significant differences were observed among ceramics and control group, in all evaluation times. The Eco-Link cement, after 24 hours of the light curing, showed lower hardness with In Ceram 4 mm than control group. Concluded that ceramics used in this study didnt reduce the microhardness of the cements, except for Eco-Link
cement in the evaluation 24 hour after the light curing. |
| URI: | http://hdl.handle.net/123456789/354 |
| ???metadata.dc.type.dissertation???: | Dissertação |
| Appears in Collections: | Odontologia: Coleção Teses e Dissertações.
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| Albano Luis Novaes Bueno.pdf | | 195Kb | Adobe PDF | View/Open |
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