Operator's Manual - Sirona - Technical Documentation

Sirona Dental Systems GmbH Restoration types and design techniquesOperator's Manual10.3.5.2 Acquiring the preparationDescription1. After you have made and dried the preparation, powder the working field.2. Accept the preparation (see "Optical impression").3. With the CEREC 3D software, multiple impressions can be acquired fromslightly displaced perspectives.The CEREC 3D software combines all of the individual impressionsto form a single whole impression so that all regions of the preparationare acquired. The first impression is displayed with a red frameto show that it is the reference impression.CAUTIONFitting the restorationIf regions with slight undercuts are also displayed, the milling unit will thenmachine the preparation so accurately that the restoration may get stuckslightly while it is being fit.Continue to 3D preparation✔ All of the required optical impressions are available.➢ Click the button "Next".10.3.5.3 Acquiring the antagonistbåÖäáëÜProcedure1. Acquire one or more impressions of the antagonist/bite registration.2. If all of the required optical impressions are available, click the icon marked"Next".10.3.5.4 Displaying the 3D representationinLab/CEREC crown with antagonist image for tooth 473D displayRotating the preparationYou can rotate the preparation as required by pressing and holding down theleft mouse button and moving the mouse in the desired direction.Arrows in the view windowYou can also use the cursor arrows in the "View" window to view the preparationfrom the desired direction (see "Standard views" [ ➙ 30]).59 56 458 D 3344D 3344.208.05.14.02 04.2011 139