Creating the Surfaces

Watch the short video and learn how this works.

'Surfaces' are essentially the foundation of the inner fitting surface for all restorations. In later processes these will be further modified by subtracting undercut cut areas, cement spacers and drill offsets. The edge of the Surface is defined by the margin. In general, when making copings it is not necessary to create Surfaces for contact areas, as is described with full contour crowns.

Creating the Surfaces

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Creating the Surfaces

Start by hiding the antagonist so you can get an unobstructed view of the working model.

Select one of the dies, shift and right click to place the curser, directly on the margin. This will be the starting point for drawing the margin. Press the 'Drawing' button in the 'Drawing Surfaces' submenu.

Creating the Surfaces

Select one of the dies, shift and right click to place the curser, directly on the margin. This will be the starting point for drawing the margin. Press the 'Drawing' button in the 'Drawing Surfaces' submenu.

Creating the Surfaces

When you get to the other side, select the starting vertex in a double selection, shift and left click. Press F to fuse the line. If you would rather like to use the 'Extrude' key on the menu, you can do this too. This way, you can just left click the line without using the E key. Likewise, the fuse button on the menu will join the line. If you require more vertices in the line, press the Subdivide button. Each vertex can be relocated by using the G key.

Creating the Surfaces

Creating the Surfaces

Creating the Surfaces