Watch the short video and learn how this works.
This two part guide will show you how to include the articulator in your crown & bridge work. It is often necessary to consider lateral and protrusive excursions when adjusting the bite, especially when designing multiple crowns. Since the lower jaw can be fully animated, the articulator is used to dynamically cut all of those movements. A basic working understanding of the Articulator & Virtual Facebow module is a prerequisite when working with this module.
Before you begin, align the scans into the centre of the 3D working environment. Use the tilde key to view and align the scans so that they are facing the front. In the articulator menu, 'Name Upper' and 'Name Lower', then use the mounting table to place the scan accordingly. In this example we are using a quadrant scan. When this is done, delete the mounting table and press the 'Auto SetUp Condyles' button.
Check the default movements in the Articulator Navigations submenu by pressing 'View Protrusive', 'View Left' or 'View Right'. You can also use Play/Stop animation. Go to the Articulator Constraints submenu and press the EDIT to the right of 'Set Protrusive' button. You should see the arrow in the scene outline in orange.
Open a timeline window below, then use Alt B, to make a cross section in the canine guidance area. Use the playhead on the timeline to find a scene where the outline of the upper and the lower teeth intersect one another. Go to the X rotation slider and adjust the slider so that the lower tooth no longer cuts into the upper tooth. Press Apply Key Frame.
Following this, move the playhead to a different location where the teeth intersect each other. Again, move the X rotation slider so the teeth no longer intersect each other, Press ' Apply Keyframe. You should see a series of yellow dots on these adjusted keyframes. Use Alt B to exit the cross section.
Go back to the Articulator Navigation submenu and play the animation. You should see the canine guidance in action. Following this, repeat the procedure for 'View Left' movements. Go to the Articulator Constraints and press the EDIT next to the 'Set Excursive Left' button. Again make a cross section, then use the playhead on the timeline to find the intersecting tooth outline. Use the X rotation slider to move the lower tooth into light contact with the opposing upper tooth, press 'Apply Key Frame'.
When all of the movements have been adjusted, press Alt B to exit the cross section and view the animation. Repeat this procedure for any other movements. Fine tune your work and check the lateral slide.
The first part of the articulation is now complete. From here, continue with the regular crown making procedure. The second part of the articulator guide will cover the dynamic occlusal adjustments.