An entire human head obtained at autopsy was micro-CT scanned in a nano/micro-CT scanner in a 6-hour long session.
Despite the size of the head, it could still be scanned with a pixel size of 70 μm. The aim of this study was to obtain an
optimal quality 3D data-set to be used as baseline control in a larger study comparing the image quality of various cone
beam CT systems currently used in dentistry.
The image quality of the micro-CT scans was indeed better than the ones of the clinical imaging modalities, both with
regard to noise and streak artifacts due to metal dental implants. Bony features in the jaws, like the trabecular
architecture and the thin wall of the alveolar bone were clearly visible. Therefore, the 3D micro-CT data-set can be used
as the gold standard for linear, angular, and volumetric measurements of anatomical features in and around the oral
cavity when comparing clinical imaging modalities.
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