Part of the Scan Disappears After Trimming in Dental Designer or Model Builder

When trimming a scan in Dental Designer or Model Builder, a large portion of the scan may be removed unexpectedly.

This issue most commonly occurs with third-party scans but may also affect some TRIOS scans.

Affected Dental System versions:

• Dental Designer: Mainly Dental System 2018 and 2019.
• Model Builder: May also occur in earlier versions.

Resolution

Upgrade Dental System

Upgrade to one of the following versions:

• Dental Designer: Dental System 2.19.3.0 or later.
• Model Builder: Dental System 2.20.1.0 or later.

Workarounds

If upgrading is not possible, try one or more of the following workarounds.

Step 1: Modify the trimming spline and try trimming the scan again.

Step 2: Use the "Refine Scans" feature in Dental Designer.

Note: This feature is available in Dental System 2019 and later.

Step 3: Use the Sculpt tools to add or remove material, smooth the scan, and correct scan artifacts.

Step 4: Repair the scan mesh using "Shape Designer" or another mesh repair application.

Step 5: If the issue persists, select "Keep All" during trimming and continue working with the untrimmed scan.