[Protocol for teeth set-up in full denture without the use of wax rims and its theoretical justification]. / Protokol postanovki iskusstvennykh zubov bez ispol'zovaniya prikusnykh valikov i ego teoreticheskoe obosnovanie.

OBJECTIVE: To develop a protocol for setting artificial teeth in a complete removable denture without landmarks on the bite ridges. MATERIAL AND METHODS: Based on the analysis of the literature of various areas of dentistry and the clinical experience of doctors corresponding to each of the disciplines of the specialty, a protocol for setting teeth in a full prosthesis was developed and its theoretical justification was given. RESULTS: Using the method proposed by us, 324 prostheses were made for 162 patients with complete secondary adentia of two jaws. A clinical study and comparison with the generally accepted method of manufacturing prostheses using wax rollers was carried out. The method proposed by us showed greater efficiency based on a comparison of the results of functional tests after prosthetics. CONCLUSION: The described method is part of the concept of manufacturing a functional prosthesis, is used in removable prosthetics, but can also be used in non-removable prosthetics, allows highly accurate, in accordance with individual anatomical parameters and features, to restore the occlusion of the patient during the reconstruction of the dentition, taking into account individual anatomical and functional parameters.

[Comparative research of implants with three types of surface processing (TiUnite, SLA, RBM), control, with periimplantitis and processed by 2780 nm Er;Cr;YSGG laser]. / Sravnitel'noe issledovanie poverkhnostei trekh tipov implantatov (TiUnite, SLA, RBM) s kontrol'nym obraztsom, periimplantitom, obrabotannykh lazerom Er;Cr;YSGG dlinoi volny 2780 nm.

Research objective - an assessment of morphological and element composition various as surfaces of implants, with the diagnosis periimplantitis, subjected to processing by the Er laser; Cr; YSGG wave of 2780 nanometers long in comparison with not subjected. Used implants of three producers: (1 - Nobel Biocare (Sweden), TiUnite surface; 2 - XIVE Dentsplay (Germany), SLA surface; 3 - BioHorizons (USA), RBM surface). Electronic and microscopic methods investigated surfaces of the control (new) implants removed with the diagnosis periimplantit, with the diagnosis periimplantit and processed by the laser. It is revealed that the surface of new sterile implants isn't ideal, on it there are traces of impregnation by inorganic connections, a large amount of foreign chemical elements, especially on a surface of SLA of an implant of XIVE Dentsplay is revealed. The surface of skilled implants with the diagnosis periimplantit is very strongly polluted by carbon (C), phosphorus (P), sulfur (S), silicon (Si), etc., being formed on a surface during an inflammation. After processing of the same surface by the Er laser; Cr; YSGG wave of 2780 nanometers long occurs surface clarification, and the element structure almost completely corresponds to the control.

[Assessment of the efficiency of root canals sealing depending on the type of root dentin treatment (experimental study)]. / Otsenka effektivnosti germetizatsii kornevykh kanalov v zavisimosti ot vida obrabotki (eksperimental'noe issledovanie).

Research objective was a comparative assessment of quality of sealing of root canals, subjected to a standard method of processing, processing by the laser and processing by LAI equipment, with sealer and the gutta-percha. The study included 20 teeth extracted because of chronic periodontitis and divided into four groups. Root canals were processed according to the traditional protocol using as an irrigant 3% NaOCl and 17% EDTA solution, LAI equipment, the Er laser; Cr; YSGG 2780 nm at a power 1W and 1,5W and sealed up using single protocol by means of an epoxy siler of AH+ and gutta-percha by continuous wave by means of the CalamusDual (DentsplayMaillefer) device. Scanning electronic microscopy was used to study the efficiency of sealing depending on a type of processing. The highest sealing of the obturation material to the canal walls was revealed in teeth processed by the laser at a power of 1.5 W confirmed by lack of emptiness between a material and a dentine. Conventional irrigation protocol did not result in an optimal obturation with the extent of empty spaces up to 13 microns. The results of the pilot research are the basis for more extensive studies.