Exporting from NNT
In NNT, open the 3D exam and choose Export → DICOM. NNT saves a folder with DICOM slices and a DICOMDIR. Zip and upload to cbcthub.com/viewer.
For older NewTom systems that export a proprietary .vol file, convert to DICOM inside NNT first (File → Convert). CBCTHub reads the DICOM output.
Alternative to NNT Viewer
NNT Viewer is free but Windows-only. It ships on CD or USB with the exam and must be installed by the recipient.
CBCTHub is the web alternative. Your center keeps NNT at the scanner; anything that leaves the center goes through a browser link.