[The use of intraosseous appliances considering the anatomical features of the hard palate].

Objective: The aim of the study. To improve the effectiveness of patients' treatment with narrow upper jaw by improving the stability of intraosseous devices.

Materials And Methods: 40 patients with the narrow upper jaw, from 12 to 40 years old, were treated.

[Manufacturing of zirconia restorations by means of additive fabrication. Part 2].

Additive fabrication (AF) or layer-by-layer synthesis technologies is one of the most dynamically developing areas of digital production. Modern additive technologies can be used to fabricate zirconia-based restorations. The second part of this article will present the fabrication of zirconia restorations using additive technologies such as selective laser sintering (SLS), selective laser melting (SLM), binder jetting (BJ), robocasting (fusion deposition modeling, FDM), as well as the advantages and disadvantages of the mentioned technologies.

[Manufacturing of zirconia restorations by means of additive fabrication. Part I].

Additive fabrication or layer-by-layer synthesis technologies is one of the most dynamically developing areas of digital production. Modern additive technologies can be used to fabricate zirconia-based restorations. The first part of this article will present the fabrication of zirconia restorations using additive technologies such as stereolithography, digital light processing, selective laser sintering, selective laser melting and inkjet printing, as well as the advantages and disadvantages of the mentioned technologies.

[Comparative evaluation of traditional and speed sintering of dental ceramics based on zirconium dioxide].

This study analyzed the traditional and high-speed firing of dental ceramics based on zirconia. The types of furnaces for sintering zirconia, the basic principles of traditional, high-speed and super-speed firing, as well as the effect of the sintering protocol on the structure, physical, mechanical, optical properties, wear and marginal fit of zirconia were evaluated. The analysis showed that it`s necessary to develop a special optimal sintering technique using particular protocols in specific types of furnaces for each dental ceramic material based on zirconia, taking into account the composition and structure of the ceramics.

[Adhesion of dental cements to zirconia restorations. Part 2].

The information about methods of surface preparation for dentures made from ceramic based on zirconium dioxide for better adhesive fixation is presented in the first part of this article Micromechanical methods of preparation for cementation of the surface of a zirconia dental prosthesis are discussed in the first part of this article The second part of the article provides an overview of scientific research on chemical methods for preparing a surface made of zirconia and the problem of the bond strength of polymer cement with a prepared surface made of zirconia.