Issues with Bite Impressions and how to Handle Them
- There are issues with occlusions;
- The crowns are coming out too high;
- The bite is slightly moving during scanning; or
- There is a slight gap in between model and bite looking at it in the CAD software after scanning (using the "Distance to Antagonist feature).
Recommended handling of bite impressions
- The bite should fit the model perfectly, and should be sturdy in position during the axis movements within your scan process.
- To accomplish this, consider making a new bite with lab putty, rather than trying to make a distorted bite to fit your model.
- if you made a new bite:
- DON'T remove from the model.
- Trim occlusal down.
- Scan the bite.
- Remove the bite to scan the model.
- Since a newly made lab-putty bite usually sticks pretty well to the model, the chance of it moving is basically eliminated.
- Also, consider using a model mounted in an Artex articulator and scanned with the Transfer Kit instead of a bite impression to achieve a maximum of stability and accuracy.