[3-dimensional computer-supported model and hologram evaluations].

For the three-dimensional measurement of plaster casts and holograms a self-fabricated measurement device will be introduced. This measurement device has the following specialties: 1. All measurements will be done without any subsidiary optical instruments like spectacles, microscope, binoculars or any thing else. Therefore a tire of measuring can be carried out. 2. Only two 3 mm deep holes should be ground in the base of the plaster casts as preparatory measures for the three-dimensional measurements of the plaster casts. 3. The menu- and window-orientated software gives the possibility for the collecting of data in a data bank. 4. The precision of these measurement results, even in the case of measuring holograms, are frequently better than the common way of measuring plaster casts. 5. The precision and information by the holograms are nearly the same, compared with the common plaster casts. 6. The tracing and measuring of the angles and lines by this newly measurement device guarantees the doctor a quick overview concerning the therapeutic measures. 7. The transfer of these data in the lateral-rays and in the posterior-anterior findings leads to a better diagnostic. That means the diagnostic horizon will be widened with this new method.