Telescopic crowns

Aus Amann Girrbach
(Weitergeleitet von Teleskope)
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Fahne Deutsch.JPG



Setting the path for insertion

When designing telescope crowns with the Ceramill Mind software, only two steps in the Wizard differ from the design procedure for other indications. Adapting the prepared anatomy to the opposing dentition and adjacent teeth is followed by the Wizard step of setting the secondary path of insertion of the telescope crowns. There are two different options for setting the path of insertion: either by grabbing the green arrows with the mouse and dragging them in the required direction or by aligning the model according to the direction of view and confirming with the button “Direction of view → Path of insertion” [1].


Tele einschubrichtung.PNG




Wizardstep: Primary telescope

The actual designing of the telescope crowns then follows in the next Wizard step. Here, the design can be adjusted using the parameter setting in the Wizard window or directly on the displayed telescope using movement points and lines. An overview will be presented in the following of the different functions and short cuts in the primary telescope step of the Wizard:

Tele konstruieren 1.PNG

Tele Hauptfissur.PNG

  • [1] Angle of the friction surface
  • [2] Cutter diameter of the shoulder at the lower end of each friction surface
  • [3] Adaptation of the lower telescope shoulder to the gingival contour
  • [4] Adaptation of the lower telescope shoulder to the gingival height
  • [5] No adaptation of the lower telescope shoulder
  • [6] Deactivate and activate coloured highlighting of the friction surface
  • [7] Setting of the friction surface angle separated in distal, mesial, buccal and lingual region
  • [8] Setting of the telescope path of insertion to the original setting (“Standard”) or according to the viewing direction
  • [9] Setting of the telescope height (refers to the area above the friction surface)
  • [10] By clicking on this symbol with the Ctrl key pressed, the occlusal surface changes between reduced shape and anatomical shape (ring telescope). The display and position of the symbol changes according to the setting. If the symbol is clicked without the Ctrl key, the changes only affect the area around the symbol clicked.
  • [11] By clicking on this symbol with the Ctrl key pressed, the shape of the shoulder changes between bevelled, deep chamfer and anatomical design. The display and position of the symbol changes according to the setting. If the symbol is clicked without the Ctrl key, the changes only affect the area around the symbol clicked.
  • [12] By clicking on this symbol with the Ctrl key pressed, the friction surface can be released from the angle and radius settings set in the Wizard and freeformed. By clicking again, the surface adapts to the anatomical shape. The display and position of the symbol changes according to the setting. If the symbol is clicked without the Ctrl key, the changes only affect the area around the symbol clicked.
  • [13] The movement spheres on the lines enable freeforming of the telescope. By clicking the circle below the movement sphere, the point on the gingival height can be adapted.
  • [14] The pink-coloured line on the occlusal surface is used for indicating the main fissure in the telescope design. By clicking the white circle below the movement spheres of this line, it can be released from the entered minimal thickness and also adapted.




Shortcuts for operating the movement lines and spheres

Hotkey
  • Add line: With pressed Ctrl+SHIFT key combined with left mouse click on the friction surface
  • Delete line: With pressed Ctrl+SHIFT key combined with pressed left mouse key and right click on a line
  • Add movement point: Ctrl key + left mouse click on the top line
  • Delete movement point: Ctrl key + left mouse key combined with right click on a movement point
  • Move points of a line simultaneously: Keep Ctrl key pressed + movement of a point
  • Move adjacent points of a line together: Keep SHIFT pressed + movement of a point