CBCT images of the DIMITRA phantom number 6, 9–10-year-old (a–c) and a 13-year-old boy (d) illustrating the similarity (soft tissue aspect) in different conditions (different CBCT units and technical parameters). (a) Acquired from a CS9300 unit, FOV 5 × 5 cm, 90 kVp, 5 mA, voxel size 0.09 mm, 20 s. (b) Acquired from a CS9300 unit, FOV 8 × 8 cm, 90 kVp, 5 mA, voxel size 0.18 mm, 8 s. (c) Acquired from a NewTom Giano unit, FOV 11 × 5 cm, 90 kVp, 3 mA, voxel size 0.15 mm, 9 s. (d) Performed with a ProMax 3D Max unit (Planmeca, Helsinki, Finland), FOV 5 × 5 cm, 96 kVp, 11 mA, voxel size 0.2 mm, 12 s [obtained from the clinical data collection of the authors’ institution (Paris Descartes University) ]. CBCT, cone-beam CT; FOV, field of view.