Abstract:

Purpose: The purpose of this study is to investigate the effects of the various surface processes applied to pre-synthetic and post-synthetic zirconium oxide-based ceramics on the surface smoothness. Tools and Methods: In the study, a total of 150 discs formed samples were prepared on the CAD_CAM device. The subjects were divided into 7 groups (n:10): Control group, welding, Er-YAG laser, Nd-YAG laser, Er-YAG laser + welding, Nd-YAG laser + welding, thin and thin grened frez. Half of the examples were implemented and synthesized before synthesization surface processes. The other half was performed after the surface process. No surface process was applied to the control group and was only synthesized. The surface smoothness of the samples was measured by the profilometer device and the changes in their surfaces were studied by an electron microscope scanned. Results: The data obtained in the study was analyzed through the Varyans analysis, the Tukey test and the interpersonal importance test (p=0,05). When compared with the control group, except the groups applied frez from the surface processes applied prior to synthesis, the surface smoothness was statistically significantly increased (p<0,05). In the surface processes applied after synthesis, all groups except the thin grened frez were statistically significantly increased surface purity (p<0,05). Pre-sinterization surface applications were found more effective than post-sinterization applications. Result: The study significantly increased the smoothness of all the surface processes applied before synthesis, and in particular the Er-YAG laser+ assembly. This can also result in an increase in the micromekanic connection. Keywords: zirconium oxide, surface smoothness, slurry, laser, frez

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