# DentalSegmentator stuck at when segmenting CBCT

**URL:** <https://discourse.slicer.org/t/dentalsegmentator-stuck-at-when-segmenting-cbct/48795>\
**Category:** Support\
**Tags:** segmentation, dentalsegmentator\
**Created:** [November 8, 2026, 4:07pm UTC](https://discourse.slicer.org/t/dentalsegmentator-stuck-at-when-segmenting-cbct/48795 "2026-11-08T16:07:28Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![minghaoliu660](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/minghaoliu660/32/82941_2.png) [@minghaoliu660](https://discourse.slicer.org/u/minghaoliu660)\
**Post date:** [November 8, 2026, 4:07pm UTC](https://discourse.slicer.org/t/dentalsegmentator-stuck-at-when-segmenting-cbct/48795/1 "2026-11-08T16:07:28Z")

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![屏幕截图 2026-11-08 235930](https://us1.discourse-cdn.com/flex002/uploads/slicer/original/3X/f/6/f6a1344e4fde725a638b25aca8dd240fbdc9badf.jpeg)

Hello everyone,

I am trying to use the **DentalSegmentator** extension in 3D Slicer to segment tooth roots from a CBCT scan, but the process is **stuck**.  
When I click “Apply”, the progress bar gets stuck and does not update. I have waited for **hours** and it is still stuck. The “Stop” button is still active. It seems like the software is frozen or working in the background without showing progress.

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**Author:** ![Esteban\_Barreiro](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/esteban_barreiro/32/5430_2.png) [@Esteban\_Barreiro](https://discourse.slicer.org/u/Esteban_Barreiro)\
**Post date:** [November 8, 2026, 7:58pm UTC](https://discourse.slicer.org/t/dentalsegmentator-stuck-at-when-segmenting-cbct/48795/2 "2026-11-08T19:58:44Z")

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Hello!

You can try the troubleshooting describen in this page:  
[Troubleshooting | gaudot/SlicerDentalSegmentator | DeepWiki](https://deepwiki.com/gaudot/SlicerDentalSegmentator/6-troubleshooting)