WIELAND Dental Digital Support CAM handling abutment bridges

Transcription

1 D E N T A L WIELAND Dental Digital Support CAM handling abutment bridges

2 Table of contents 1. Handling in the CAM system Importing digital restoration files into the CAM system Setting the occlusal planes Central occlusal planes Upper occlusal plane and lower occlusal planes Defining the insertion directions Nesting Calculation and simulation... 4 Instructions_Cam_Handling_Abutment_Bridges 1.0_ _AP

3 1. Handling in the CAM system 1.1 Importing digital restoration files into the CAM system 1.2 Setting the occlusal planes When importing STL files, the occlusal planes and insertion axes must first be defined on the model. In the Wieland CAM 4.0 output format, too, the occlusal planes and the insertion axes must currently also be defined, since they are not yet properly identified when exported from the CAD application Central occlusal planes Central occlusal planes are set in order to define the maximum milling depth to be traveled by the fine milling tool from above and below. Otherwise, tool breakage may occur because the tool would try to penetrate too far into the material. In the <<Preparation dialog>> select <<Insertion directions>>. à Click on <<Center>> at the bottom of the pane and position the arrow on the edge where the occlusal plane is to be set. The edge must be highlighted in yellow Upper occlusal plane and lower occlusal planes Upper and lower occlusal planes are set in order to prevent the fine milling tool from traveling/moving at full speed in the insertion directions during the first fine milling pass and thereby causing the tool to break. à Click on <<Lower>> and select edge in order to set the lower occlusal planes à Click on <<Upper>> and select edge in order to set the upper occlusal planes

4 1.3 Defining the insertion directions Insertion directions are set in order to carry out a separate fine milling operation at reduced feed. This ensures that the restoration will be a good fit. In the <<Preparation dialog>> select <<Insertion directions>> à click on "Manual Insertion directions" at the bottom of the pane, click on <<Select curve>> and position the arrow on the edge where the insertion direction is to be set. The edge must be highlighted in yellow. It is important that the correct machine is first selected in the upper toolbar, because this determines the maximum tilt angle. In the case of the T1, the tilt angle can be set to 25. If the insertion direction is not correctly aligned, it must be corrected by means of the slider. The insertion direction should then be aligned so that it can be viewed directly from above without any visible tilting. Otherwise, the result may be a less than perfect fit.

5 Once the insertion direction has been correctly aligned, click on <<Insertion direction OK>> to define the insertion direction. Proceed as above for all other insertion directions. The work is finished when all occlusal planes and insertion directions have been defined. Then click on <<Save>> in the top right of the tool bar to save the milling job.

6 1.4 Nesting Next, position the Implant/Abutmentbridge in the blank. Select the following strategies: Implant-borne bridge à ZrO Abutment bridge (3+1/3+2) + cut bars Computation and simulation When computation is complete, the paths and the simulation should always be viewed since any errors can then be detected immediately, which can save a milling operation. You can tell by the paths whether all occlusal planes are correctly set or not. Central occlusal planes: Right click several times on the button <<Tooth>> in order to make the work transparent.

7 Then click on the paths for the insertion directions. The paths for the insertion directions must not extend beyond the central occlusal plane. Upper and lower occlusal planes Click on the paths for the first rough milling operation. The paths may not penetrate as far as the areas of the insertion directions, either from above or from below. Otherwise this could cause the tool to break. (Toolbrekage) Simulation It is very important to view the simulation before milling, in order to ensure that the work is machined or milled fully and correctly. For example, if the size of the drill hole is such that it can not be machined with the tool in use, then this can be seen immediately on the simulation and the work can not be correctly milled.

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9 D E N T A L EXPECT THE DIFFERENCE! BY WIELAND. As a major supplier of dental system solutions, WIELAND embodies both tradition and progress in matters of dental products and technology. Since our company was founded in 1871, we have stayed true to our corporate philosophy of combining tradition, innovation and quality with the best in customer care. Today, our core competencies and key strengths lie in the forward-looking integration of technologies and materials for dental prosthetics. This ensures that patients can trust in the quality of their restorations, and our partners in dental practices and laboratories can continue with confidence on the path to digitalisation and greater competitiveness. WIELAND offers a wide range of products and services from CAD/CAM technologies and dental alloys to veneering ceramics and electroforming. Thanks to our worldwide presence and international network, WIELAND is never far away, and your contact person can always be located via the Internet. WIELAND Dental +Technik GmbH & Co. KG Schwenninger Straße 13, Pforzheim, Germany Fon / , Fax / e.00.03/12