REPRODUCTION OF OCCLUSAL DESIGN BETWEEN ANALOG AND DIGITAL WAX-UP

Aim of the study. The emergence of digital technologies, eases the work of the dental technician and reduces the actual working time in reproduction the dental morphology, but at the same time, the use of a large number of devices can increase the degree of error of the final restoration in the absence of appropriate adjustments. For this reason, this study made a comparison between the classic wax-up method and the digital one to see the degree of accuracy now. Materials and methods. Starting from a model with intact morphology in the area of maxillary premolars and molars, the removal of the upper 1st molar and the grinding of the neighboring teeth were carried out. The restoration of the morphology was carried out by analog but also digital wax-up. Analysis was performed in 26 landmarks and relevant statistical differences were checked using Kruskal-Wallis and Wilcoxon Mann-Whitney tests. Results. The largest variations were recorded in the case of analog wax-up, statistical significance p<0,01 show differences for each individual tooth, and for the entire set of teeth. Conclusions. The study results show that the digital wax-up offers clearly superior results compared to the analog wax-up.