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Toothbrushing had no effect on surface roughness and color stability of all tested materials, but it decreased the microhardness. Toothbrushing showed a decrease in the microhardness of the three groups: EC and LP, p 0.05) however, the EC group was found to be considerably affected by color changes, in comparison to the EC and LP groups. The findings revealed a non-significant decrease in the surface roughness of EC, EP, and LP groups ( p > 0.05), and both LP and EP have the lowest surface roughness values (0.64 ± 0.13, 0.64 ± 0.08 µm) after brushing, respectively. The results were analyzed using one-way ANOVA, Tukey’s post hoc test, and paired sample t-test α = 0.05. Scanning electron microscopy (SEM) was used for surface profile analysis. Surface roughness, microhardness, and color stability (∆E) were measured before and after brushing. For each ceramic material, eight bar-shaped specimens were prepared and subjected to 10,000 brushing cycles.

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Three lithium disilicate-based ceramics (IPS Emax CAD, IPS Emax Press (Ivoclar Vivadent AG), and LiSi Press (GC Corp, Tokyo, Japan)) were examined. The objective of the current study was to assess the effect of artificial toothbrushing simulation on the surface roughness, microhardness, and color stability of different ceramic materials. Select the data type, use the search and replace function and change the UI language.Pressable ceramic restorations have been introduced and investigated, and found comparable to CAD/CAM ceramic in terms of mechanical properties however, the effect of toothbrushing on the pressable ceramic has not been thoroughly investigated. Examine the database information for the desired drawing from the primary panel. The mainframe allows access to batch conversion allowing for the quick conversion of multiple files simultaneously. It's possible to convert file types to DXF, DWF and DWG and then select the release version or export to image or PDF format. From here you can switch to full screen mode where you can pan, zoom, change background colour, set layers, rotate drawings and print. You can navigate directories or look at drawings in a useful small panel, by using the Explorer-based view. All AutoCAD versions to date are supported by this application. With this application, it is possible to view AutoCAD drawings without having computer-aided design suite installed on your device. View AutoCAD drawings without installing CAD suite. The data can be exported to image format or PDF in a highly user-friendly environment. This program allows the user to open AutoCAD files and view DXF, DWF and DWG drawings. Mireia Fernandez Cristia Updated 5 years ago A Great free AutoCAD Drawing Viewer.








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