# Automatic segmentation best for entire the mandible including dentition, trabecular and cortical bone

**URL:** https://discourse.slicer.org/t/automatic-segmentation-best-for-entire-the-mandible-including-dentition-trabecular-and-cortical-bone/13805
**Category:** SlicerCMF
**Tags:** registration, segmentation
**Created:** [October 1, 2020, 11:03pm UTC](https://discourse.slicer.org/t/automatic-segmentation-best-for-entire-the-mandible-including-dentition-trabecular-and-cortical-bone/13805 "2020-10-01T23:03:36Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![Lexus\_H](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/lexus_h/32/4110_2.png) [@Lexus\_H](https://discourse.slicer.org/u/Lexus_H)
#### Post date: [October 1, 2020, 11:03pm UTC](https://discourse.slicer.org/t/automatic-segmentation-best-for-entire-the-mandible-including-dentition-trabecular-and-cortical-bone/13805/1 "2020-10-01T23:03:36Z")

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1. How do I automatically segment all of the teeth, cortical and trabecular bone in the mandible? Is it better to use ITK-SNAP or Slicer?
2. Is colorbar in an increment of 1cmm? I mean for a range
3. Is there a way to crop colormap cross-sectionally? Will it show anything since colormap is only applicable to surfaces?

thanks,

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### Author: ![manjula](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/manjula/32/80981_2.png) [@manjula](https://discourse.slicer.org/u/manjula)
#### Post date: [October 2, 2020, 8:48am UTC](https://discourse.slicer.org/t/automatic-segmentation-best-for-entire-the-mandible-including-dentition-trabecular-and-cortical-bone/13805/2 "2020-10-02T08:48:10Z")

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1. Please look here for teeth segmentation.

> [@Teeth Segmentation](https://discourse.slicer.org/t/teeth-segmentation/9775/9):
>
> I’ve checked this and found that all teeth can be quite quickly and accurately segmented at once by the following steps:
> 
> 1. Set editable intensity range from about 1880 to maximum using Threshold effect, “Use for masking”

1. Far as I understand if you are referring to the model to model distance colour map it is in the what ever the units that your data is originally in.

2. I do not really understand. If the way i understand is correct, if you crop the models and then run the colour map you will see the colours in the exact area you want