# How do I view the 3D rendering of CT dental images?

**URL:** https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718
**Category:** Support
**Tags:** dicom
**Created:** [July 15, 2025, 4:25am UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718 "2025-07-15T04:25:23Z")
**Posts on this page:** 7
**Page:** 1

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### Author: ![Wonderer](https://avatars.discourse-cdn.com/v4/letter/w/e99b99/32.png) [@Wonderer](https://discourse.slicer.org/u/Wonderer)
#### Post date: [July 15, 2025, 4:25am UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/1 "2025-07-15T04:25:24Z")

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Dr. “A” provided a USB drive with 348 zipped {dot} dcm images which are just that, images. I took the drive to another Dr.'s office Dr. “B” and they were unable to generate any 3D renderings and could only see the images which did not help them.

On my computer with 3D slicer, and “AutomatedDentalTools”, I can see slices (yay) and the 3D grid but no renderings in 3D. What else do I need to do to enable Dr. B to see the 3D renderings? I’m thinking I will bring my laptop into their office or send them screen captures of the 3D images once I can generate them.

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### Author: ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)
#### Post date: [July 15, 2025, 5:03am UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/2 "2025-07-15T05:03:01Z")

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If you successfully imported the dicom sequence into Slicer, you can use the `Volume Rendering` with the CBCT preset (assuming that’s what these are) to create the 3D renderings.

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### Author: ![Wonderer](https://avatars.discourse-cdn.com/v4/letter/w/e99b99/32.png) [@Wonderer](https://discourse.slicer.org/u/Wonderer)
#### Post date: [July 15, 2025, 10:19pm UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/3 "2025-07-15T22:19:34Z")

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I deeply appreciate the response as I am almost totally lost!

The files are dental CT scans.

I have looked at the [Volume Rendering] Module and only only see [Volume:] with my files next to it and below [Inputs] then [Display] and [Preset] underneath and in [Select a Preset] I don’t see any CBCT presets. All of the presets start with “CT”, “MR”, “DT1”, “US” or “uTC” (I’m not sure about the 1 because it is so small). I suspect that I have the wrong menu displayed.

I guess I should have stated that I am totally new at this but fascinated. I am working my way through the “[Volume rendering — 3D Slicer documentation](https://slicer.readthedocs.io/en/5.8/user_guide/modules/volumerendering.html)” file but am hoping to shortcut having to learn all of this to give the dentist some images to save a tooth. 😁

BTW, I have somehow decreased the default contrast in the other three windows so they are now difficult to view.

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### Author: ![Wonderer](https://avatars.discourse-cdn.com/v4/letter/w/e99b99/32.png) [@Wonderer](https://discourse.slicer.org/u/Wonderer)
#### Post date: [July 15, 2025, 11:22pm UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/4 "2025-07-15T23:22:16Z")

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I have now managed to see a static rendering of the roof of the mouth. So getting there I guess.

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### Author: ![Wonderer](https://avatars.discourse-cdn.com/v4/letter/w/e99b99/32.png) [@Wonderer](https://discourse.slicer.org/u/Wonderer)
#### Post date: [July 15, 2025, 11:45pm UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/5 "2025-07-15T23:45:15Z")

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The program hung and I restarted and reloaded the data files. Now the contrast looks good.

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### Author: ![muratmaga](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/muratmaga/32/3622_2.png) [@muratmaga](https://discourse.slicer.org/u/muratmaga)
#### Post date: [July 16, 2025, 1:22am UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/6 "2025-07-16T01:22:31Z")

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> [@Wonderer](#):
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> I don’t see any CBCT presets.

You are correct, I was wrong. I thought there was a CBCT preset, but apparently not. not sure how it will work for your dataset, but **US-Fetal** , and **CT-Chest-Contrast-Enhanced** presets give good enough rendering for a sample CBCT dataset provided with Slicer. Start with those, and use the SHIFT slider to adjust the levels.

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### Author: ![Wonderer](https://avatars.discourse-cdn.com/v4/letter/w/e99b99/32.png) [@Wonderer](https://discourse.slicer.org/u/Wonderer)
#### Post date: [July 16, 2025, 10:29pm UTC](https://discourse.slicer.org/t/how-do-i-view-the-3d-rendering-of-ct-dental-images/43718/7 "2025-07-16T22:29:29Z")

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> [@muratmaga](#):
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> CBCT preset

Now there is a rendering (not sure how) of all of the teeth. How is one tooth and the portion of jaw isolated for 3D rendering?
