Design Step 2 - Margin Design and Pontic Placement
6 Unit Bridge & 4 Single Copings with Vacuum Formed Template
The first step is to define the margin line. Several methods can be used to accurately created our margin line. This is done for each abutment individually by rotating the die to view it from as many different views as possible.
After the margins are defined, the design process of the actual coping begins. Defaulted setting create our virtual "cement gap". Several settings are available for various frameworks, i.e., single copings, bridge units, copings over implant abutments, etc. For the single copings we use a standard cement space and for bridge units we allow for a more passive fit.
After the copings and framework abutments are created, pontics and connectors are dropped into place to create the rest of the bridge. Pontics have full range of motion to adjust them into proper alignment and leave enough support and space for porcelain.
Checking the alignment of the central abutment and lateral pontic.
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