Summary: .X-Ray micro-computed tomography (micro-CT) of four teeth before (TomoB) and after (TomoA) simulation of root canal treatment and retreatment procedures instrumented with strain-gauge, including reconstructions, for two different resolutions (TomoB and TomoA with voxel sizes of 20.0 μm and 10.5 μm, respectively). .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: .Tomo1B/Tomo2B/Tomo3B/Tomo4B (1024) - Voxel size: 20.0 μm; Sample-source: 45.0 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#1; Beam energy: 60 kV; Power: 5 W; Exposure time: 2.0 sec; Projections: 1600. .Tomo1A/Tomo2A/Tomo3A/Tomo4A (2048) - Voxel size: 10.5 μm; Sample-source: 48.2 mm; Sample-detector: 110 mm; Optical magnification: 0.4X; Filter: LE#2; Beam energy: 60 kV; Power: 5 W; Exposure time: 7.0 sec; Projections: 1600. Contents: ._info_ds-uct-002.txt .ds-uct-002_root_canal_strain_tomo1b_20um_8bits.zip .ds-uct-002_root_canal_strain_tomo2b_20um_8bits.zip .ds-uct-002_root_canal_strain_tomo3b_20um_8bits.zip .ds-uct-002_root_canal_strain_tomo4b_20um_8bits.zip .ds-uct-002_root_canal_strain_tomo1a_10um_8bits.zip .ds-uct-002_root_canal_strain_tomo2a_10um_8bits.zip .ds-uct-002_root_canal_strain_tomo3a_10um_8bits.zip .ds-uct-002_root_canal_strain_tomo4a_10um_8bits.zip .PB_PARECER_CONSUBSTANCIADO_CEP_2650528.pdf