The physical model might split at the crack point under the pressure of vacuum forming (for aligners).
If you do this professionally, the add-on automates these steps. It includes a specific "Model Builder" module that closes holes and patches cracks with a single click, saving hours of manual sculpting.
If the scan is riddled with micro-cracks and "noise," a global patch is better. blender for dental crack patched
Use the command Edge > Bridge Edge Loops . Blender will create a "skin" across the crack.
If the crack is on the prep margin, the final restoration won't fit the patient. Pro Tip: Blender for Dental Add-on The physical model might split at the crack
Go to the (wrench icon) and add a Remesh modifier. Select Voxel .
Click "Check All" to see if there are still non-manifold edges. If the scan is riddled with micro-cracks and
The printer might skip layers or create "strings."