Operator's Manual - Sirona - Technical Documentation

Sirona Dental Systems GmbH DesignOperator's Manual7.4.2 Redefining the insertion axisCEREC onlyThe "Insertion axis step activ" option is activated.With bridge framework1. Once you have entered the preparation margin, click the "Next" icon. The "Insertion axis" window opens.Regions within a preparation margin that show an undercut from theviewing direction are marked yellow.2. Change the position of the preparation such that all yellow markings disappear.If this is not possible, (e.g. in the case of diverging stumps) makesure that all preparation margins are completely visible from the viewingdirection and yellow-marked undercuts are as far away as possible fromthe preparation margin.3. In order to achieve and optimum result with Biogenerics, change the positionof the preparation so that the insertion axis is aligned as verticallyas possible to the occlusal surface.4. Then rotate the preparation model so that the model is correctly labeledby the axis designations (mesialdistal and lingualbuccal). To dothis, rotate the preparation in the occlusal view by grasping the right orleft edge of the screen with the mouse pointer and then moving the pointeralong the edge of the screen.NOTICEBridge frameworksIn the case of bridge frameworks, "lingualbuccal" must be labeled correctlyat least.båÖäáëÜ5. Click the "Next" button. The reference coordinate system for all further design steps is changed.Rotation without effectNOTICERotation while scanning a crown framework model holderIf performed while scanning a crown framework with the model holder, a rotationabout the occluso-cervical axis has no effect.59 56 458 D 3344D 3344.208.05.14.02 04.2011 111