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Modern dental healthcare is unthinkable without the use of biocompatible materials. They must have the necessary mechanical properties to ensure the strength of dental structures, as well as be as acceptable as possible by the human body. In recent years, there has been an increase in the application of zirconium dioxide (ZrO2) material to metal ceramics in the manufacture of dental crowns, bridges and others. This has its natural continuation of the evolution of dental materials, which significantly improve human health not only in the oral area but also in complex, where the goal is to minimize the external contact of biological tissue with certain metal components. The present study shows the application of zirconium in the development of crowns on dental implants. Technological working hours are optimized. The process is followed in detail, highlighting important points that accompany the practical part of making the dental crown through the use of modern technologies in design. To objectively present the information in the study, a set of photographic material is presented, visualizing in detail important moments in the production of the zirconium crown.

Thermomechanical analysis by extension under static and periodic impulse loads as well as the plotting of isometric heating diagrams are used for the investigation of thermally stimulated crystallization of cellulose triacetate (CTA) in unplasticized and plasticized films, the latter being known as the film base of photo and cinema materials. By introducing appropriate additives, it appeared possible to affect the crystallization process in various directions; the mechanism'of the process is discussed. The curves obtained by the techniques of thermal analysis give an individual characteristic of CTA film, reflecting the peculiarities of its production.