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Exposure parameters: 100 kV – 3 mA – 9,4 s – 107 mGycm2, FOV: 4 x 4 cm
Clinical background and issue
The DVT investigation served to determine the relative positions of the teeth in the right, front part of the maxilla in this patient with a suspected supernumerary dental germ.
A supernumerary lateral incisor germ can be seen directly palatal to the roots of teeth 53 and 52 (partially absorbed). Tooth 12 – twisted 90° in the mesial direction – can be seen directly mesial to this dental germ. Tooth 11 – twisted 45° in the distal direction – can be seen directly mesial to 12. There are no signs of any root absorption at permanent teeth. Tooth 13 is impacted by the supernumerary dental germ.
Supernumerary dental germ of a lateral incisor directly palatal to the roots of 53 and 52 and resulting impaction of 13 and 12 and twisting of 12 and 11.
The data set was obtained using a low-dose protocol, which is the preferred approach in particular for investigating supernumerary and displaced teeth in children and adolescents. Any reduction in diagnostic value, due to the noise associated with the reduced dose, is only minimal as there is still sufficient contrast in the data set.