How do I mark and calculate volume on a dicom image?

Hi guys
I’m new to slicer.
I’m a postgrad in Endodontics.
Could anyone help me with a project I’m doing with CBCT?
I need to mark and calculate volumes of specific objects on a dicom image.
Could I please get some help with that?
It’ll be a big favour!:slight_smile:
Thanks in advance!

Operating system: Win 10 64bit
Slicer version: Latest
Expected behavior:
Actual behavior:

Segment your object of interests using Segment editor module and then compute volumes using Segment statistics module. Use the latest nightly version of Slicer (Slicer 4.6.2 is not suitable).