Luistari X-Ray microtomography dataset

Most imaged skeletal elements are teeth. The file or folder name, in most cases, gives the identification of the tooth using the nomenclature by Fédération dentaire internationale (fdi), followed by the Finnish Heritage Agency museum ID (type KM12345_6789_10) . The imaging was conducted at the University of Helsinki X-ray Micro-CT laboratory during 2015-2016 using a Phoenix nanotom|s device.

For tooth imaging, an operating voltage of 120 kV and current of 150 µA was used and 1 mm Al filter was placed in the beam. Each scan consisted of 1000 projection images with 2.5 s exposure time. The voxel size in the images varies from 8.33 µm to 11 µm depending on the sample size.

Imaging of bones was performed with similar specifications, and resulted in higher voxel sizes. The 3D models were constructed using the Bruker CT Analyzer (CTAn) software and smoothed with Meshlab Laplacian smoothing (steps 3, 1D boundary smoothing, contangent weighting).