Analysis of dental casts plays an important part in the clinical examination of a patient before any decision is taken regarding treatment. With the advent of new technologies and the introduction of digital data into the orthodontist’s office, digitalized casts now offer a new alternative to plaster. The use of 3D casts enables qualitative and quantitative analyses to be made both simply and quickly with a view to better preserving the patient’s functional and esthetic equilibrium.

The aim of this study was to assess the reliability of the Bibliocast Cécile 3 software.

To this end, 57 Senegalese patients aged 13 to 33 years presenting an ideal occlusion were selected. Alginate impressions were taken and a hard plaster cast was made. The recorded plaster models were then scanned to provide virtual 3D models.

Using a calliper and the Bibliocast Cécile 3 software, we measured the overjet, the overbite, the mesiodistal (MD) and bucco-lingual (BL) diameters of the 12 maxillary and mandibular teeth, and the anterior and overall ratios.

Comparison of the results obtained for all the variables showed that there was no significant difference between the two methods, signifying that the two methods are interchangeable.