Summary: .X-Ray micro-computed tomography (micro-CT) of five endodontic files used for the primary shaping of root canals, endodontic reintervention and supplementary cleaning methods. .The 3D image was generated with an X-Ray micro-CT Scanner version Xradia Versa 510 from Zeiss performed by A Pereira at the UFF micro-CT Facility. .For use of these data, please remember to cite the DOI of the Zenodo repository and relevant papers. Details: .flat-us (1024) - Voxel size: 10.0 μm; Sample-source: 30 mm; Sample-detector: 176 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 80 kV; Power: 7 W; Exposure time: 1.0 sec; Projections: 1600. .xp-finish (1024) - Voxel size: 15.2 μm; Sample-source: 31 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 80 kV; Power: 7 W; Exposure time: 0.4 sec; Projections: 1600. .m2-30 (1024) - Voxel size: 18.2 μm; Sample-source: 39.5 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 80 kV; Power: 7 W; Exposure time: 1.0 sec; Projections: 1600. .m2r-25 (1024) - Voxel size: 18.2 μm; Sample-source: 39.5 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 80 kV; Power: 7 W; Exposure time: 1.0 sec; Projections: 1600. .reciproc-r25 (1024) - Voxel size: 18.2 μm; Sample-source: 39.5 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 80 kV; Power: 7 W; Exposure time: 0.8 sec; Projections: 1600. Contents: ._info_ds-uct-003.txt .ds-uct-003_endodontic_instruments_10um_8bits_flat-us.zip .ds-uct-003_endodontic_instruments_15um_8bits_xp-finish.zip .ds-uct-003_endodontic_instruments_18um_8bits_m2-30.zip .ds-uct-003_endodontic_instruments_18um_8bits_m2r-25.zip .ds-uct-003_endodontic_instruments_18um_8bits_reciproc-r25.zip