Blue Sky Plan Manual

Conventional crown selection can be chosen in the menu in the right panel. This requires selecting a restoration type, jaw, model and confirming by clicking "Start". The crown and antagonist models are optional. If a user selects the (no crown) option, the crown is added in the third step.

Step 1 – Margin line definition. Step 1 is used to define a closed margin line along the remaining tooth structure. The user is able to select between semi-automatic margin line detection and manual mode. To work with semi-automatic detection, click on the "Two Point Margin Line Detection" radio button. Click 2 points (Shift + left click), as shown in the picture below, to detect a curve. The curve should be detected automatically. It is possible to move with points or add more points to more precise detection.

To work with the manual margin line, click on the "Manual Mode" radio button. Click the points (Shift + left click) along the remaining tooth structure. Closed curve can be modified by holding Shift and left mouse button. The margin can be deleted by selecting "Clear Area". Undo and redo can be used as well for modifications. Warning: A closed margin line has to be defined first to continue to next step!

Step 2 – Undercuts. Step 2 is used to define the initial parameters for the crown. The slider can be used for setting the values for the undercut.

"Set insert direction from view" is used to set the insert direction according to the current viewing angle in the 3D view. "Reset insert direction" restores the original insert direction.

Step 3 – Identify Interproximal Areas. Step 3 is used to select/colour the existing adjacent teeth so the crown can be resized by the software to fit.

The approximal area can be deleted by selecting "Clear Area". Pressing the Shift key and holding the left mouse button will define the interproximal area and create a brown contour around the selection representing the crown and bridge base. By pressing the Ctrl key and left clicking with the mouse, you can remove the selection. The "Tool size" slider is used for brush size selection.

Step 4 – Crown bottom editing. Step 4 is used for editing the crown bottom. "Crown cement spacer" is an extra space for the glue between the crown and abutment. "No cement gap" allows the user to edit the crown margin. "Horizontal" defines the horizontal crown border width. "Angled" defines the length of the angled part of the border. "Angle" defines the angle of the angled part. "Vertical" defines an additional vertical border. "Minimal Thickness" is used to edit the minimal thickness. The relevant checkbox can be used to hide the minimal thickness. If the user selected the (no crown) option in the restoration panel, the "Add New Tooth" dialog is available to select the tooth by clicking on the "Next" button. Only one tooth can be selected. The tooth is added by clicking on the "OK" button. Cancel closes the "Add New Tooth" dialog.

Step 5 – Tooth placement and editing. Step 5 is used for tooth placement and tooth editing. "Transform" activates the widget for tooth placement. "Add/Remove" is used for the addition/removal of the crown material. "Smooth" smooths the crown surface. "Local deform" allows the creation of ups and downs. The "Tool size" slider is used for tool size selection, and "Tool strength" defines the strength of the tool. The original values can be restored by clicking on the "Set to Default" button.

Step 6 – Crown editing. Step 6 is used for additional crown editing. "Add/Remove" is used for the addition/removal of the crown material. "Smooth" smooths the crown surface. "Local Reshape" is a tool that deforms the tooth at a local point. The "Tool size" slider is used for tool size selection, and "Tool strength" defines the strength of the tool. The original values can be restored by clicking on the "Set to Default" button. The relevant checkbox can be used for hiding "Adapt Interproximal Contacts" and "Cut Occlusal Intersection".