[Measuring methods of volumetric changes of soft tissues at dental implants site and tooth recessions site].

The article is a review of literature on various methods for measuring gingival thickness at implant site and tooth recession. The purpose of the study was to analyze existing methods for assessing volumetric changes in soft tissues based on literature data and give recommendations on the choice of methods. The authors analyzed available methods and identified limitations and recommendations for the use of different methods.

[Relative survival and cell adhesion of multipotent mesenchymal cells from primary teeth pulp on the surface membranes and sponges produced from collagen].

Objective: To study the behavior of SHED cell culture on different types of materials for the regeneration of periodontal tissues with different porosity.

Material And Methods: Porous collagen material Fibro-Gide (Geitstlich Pharma AG, Switzerland), designed to increase the volume of the gum and the barrier collagen membrane Bio-Gide (Geitstlich Pharma AG, Switzerland) were studied on SHED cultures. As a control sample, a Spongostan sponge made of gelatin (Johnson & Johnson Medical, UK) with the most pronounced porosity and wettability was used.

USE OF VOLUME-STABLE COLLAGEN MATRIX FOR SOFT TISSUE AUGMENTATION AT TEETH AND DENTAL IMPLANTS SITE.

The aim of this clinical report is to demonstrate the capabilities and the results of a porcine collagen matrix application to increase the soft tissue volume in the area of placed implant at 3.1 site and of implant-supported cantilever prosthesis at 3.2 site.

[Complications during guided bone regeneration using a membrane based on titanium thread «Titanium silk»].

Background: The titanium based membrane «Titanium silk» is widely used in guided bone regeneration (GBR) in the oral cavity, but the literature does not mention possible complications and methods of dealing with them.

Objective: Improving the treatment of patients in cases of complications during GBR using a membrane based on titanium thread «Titanium silk».

Materials And Methods: 25 patients who applied to the Federal State Institution Central Research Institute of Dental and Maxillofacial Surgery, Ministry of Health of the Russian Federation underwent an operation of guided bone regeneration in order to create optimal conditions for dental implantation.

[Increasing the effectiveness of mandibular molars root resection surgery using retrograde endodontic revision].

The purpose of the present study was to increase the effectiveness of mandibular molars apical root resection surgery. The study included 21 patients with diagnosis 'persistent apical periodontitis', 'root cyst', in 11 cases surgery was performed with less traumatic access with piezoelectric surgery system for separation of cortical bone block and subsequent reposition after resection and retrograde root filling. The planning and procedure was described by 2 clinical cases.