The influence of microbiota on the development and course of inflammatory diseases of periodontal tissues.

An important feature of the functioning of the organs and tissues of the oral cavity is the fact that all processes that take place in it are carried out in the constant presence of various microorganisms that cause the development of pathological processes in the body or are associated with them. In the pathogenesis of chronic generalized periodontitis, dental plaque penetrates the bottom of the gingival sulcus, penetrating under the epithelium into the stroma of the connective tissue, causing its inflammation. Bacteria produce a number of toxic substances that have a toxic effect on surrounding tissues.

ANALYSIS OF THE ADVISABILITY OF USING DIFFERENT TYPES OF BASE PLASTICS BY STUDYING THE NEEDS OF THE POPULATION IN REMOVABLE PROSTHESIS.

Objective: The aim: To determine the needs of the population of the Ternopil region in prosthetics with removable orthopedic dentures and to study the physical and technological properties of different types of base plastics.

Patients And Methods: Materials and methods: The needs of Ternopil and Ternopil region population in removable prosthetics were studied on the basis of consolidated annual reports of city and district dental clinics of Ternopil region. Base dental plastics «Ftoraks» (Stoma, Ukraine) and «Villacryl H Plus» (Zermapol, Poland) were used to study the physical and mechanical properties (deformations during compression and tension).

FEATURES OF THE VARIATIVE MORPHOLOGY OF THE MANDIBULAR SECOND MOLAR USING CONE-BEAM COMPUTED TOMOGRAPHY IMAGING.

Objective: The aim: To characterize the variations in the anatomical structure of the second lower molar.

Patients And Methods: Materials and methods: In order to determine the topography of the roots and root canals of the mandibular second molar, modern imaging methods were used: orthopan¬tomography and cone-beam computed tomography.

Results: Case report: During the analysis of the orthopantomogram of the patient, the three-root morphology of the root system of 37 teeth was revealed.

COMPARATIVE ANALYSIS OF ENDURANCE CEMENTS FOR THE FIXATION OF NON-REMOVABLE ORTHOPEDIC CONSTRUCTIONS UNDER THE ACTION OF CYCLIC COMPRESSION.

Objective: The aim: To conduct studies of the physical and mechanical properties of cements for fixation, namely the duration of cement samples under cyclic compression.

Patients And Methods: Materials and methods: We have conducted a study of 6 cements for permanent fixation of fixed structures of dentures. To study the duration of cements under cyclic compression, a special stand was used, which allows testing samples for cyclic compression with a load frequency of 5.

COMPARATIVE EVALUATION OF HISTOTOXICITY INDICATORS OF METAL ALLOYS FOR THE MANUFACTURE OF METAL CERAMIC DENTAL CONSTRUCTIONS.

Objective: The aim: To carry out a comparative assessment of metal alloys for the manufacture of metal-ceramic constructions of dentures by determining the indicator of their histotoxicity.

Patients And Methods: Materials and methods: To identify the effect of metal alloys on cobalt and nickel bases on the tissue of organism, we carried out an experimental-morphological study of standard samples of metal alloys "Shot-alloy", "Remanium-2000", "Cerium", "Dent-NCB", "Cellite-N".

Results: Results: A careful histological analysis of the capsules formed around the metal alloy samples during two periods of the experiment showed that the healing time of the subcutaneous tissue was not the same.

Comparative assessment of the state of bone resorption in patients with chronic generalized periodontitis according to orthopantomogram and cone-beam computed tomography.

Aim: The aim of the study was to assess bone resorption in patients with chronic generalized periodontitis according to orthopantomogram (OP) and cone-beam computed tomography (CBCT) and substantiate which of these methods is the most appropriate for use.

Materials And Methods: In order to compare the objectivity of the results of examining the periodontal bone tissue by the above methods (panoramic radiography and computed tomography), we analyzed 26 panoramic radiographs and computed tomograms of the same patients, performed on a PICASSO (3D) computed tomograph by «Vatech».

Results: Comparison of CBCT and OP data in patients with periodontal tissue disease showed a significant difference between the indicators of bone tissue resorption in the mesiodistal direction, and revealed that the volumetric image is significantly objective X-ray picture in periodontal diseases by identifying the state (resorption) of the vestibular and oral cortical plates in any section dentition.

FEATURES OF OCCLUSAL CORRELATIONS OF MOLARS IN THE DENTAL CLINIC.

Objective: The aim: To study the odontoglific and odometometric parameters of molar crowns of the upper and lower jaws in males and females.

Patients And Methods: Materials and methods: To achieve the aim of the research was used odontoglyphic, odometometric and statistical methods of research.

Results: Results: We have found that male molars of the upper jaw are characterized by approximately the same ratio between the vestibular-palatal and mesial-distal diameters of the crown, so the teeth are square-formed.

EPIDEMIOLOGICAL INDICATORS OF DENTAL MORBIDITY OF CHILDREN AS AN INDICATOR OF ADVERSE ENVIRONMENTAL INFLUENCE.

Objective: The aim: Is to study the ecological and hygienic situation in the living area of 6-year-old children in terms of drinking water (micro- and macroelements), to identify its relationship with the state of mineral metabolism in children's mouths, prevalence and intensity of temporary and permanent caries.

Patients And Methods: Materials and methods:Clinical and laboratory studies were to study the objective condition of the teeth -intensity of dental caries according to the recommendations of the WHO and the method of T.F.

Features of the course of enamel biomineralization processes in various anatomical areas of the tooth.

Objective: The aim: To establish the features of the structural organization of enamel in various anatomical areas of the tooth and determine their influence on the characteristics of the course of biomineralization processes.

Patients And Methods: Materials and methods: The study of the structural features of enamel and dentin was performed on thin sections of various groups of teeth. Then morphological, histochemical and electron microscopic examination methods were used.

The intensity of chronic catarrhal gingivitis in children depending on the age.

Objective: The aim: To determine the degree of severity of the inflammatory process in periodontal tissues of children living in different ecological conditions.

Patients And Methods: Materials and methods: With the purpose of estimation of the condition of periodontal tissues the epidemiology examination of 642 children that live on territory with the high level of pollution and natural deficit of iodine and fluorine was conducted.

Results: Results: The study found that the increase of age of examined children causes the decrease of percentage of easy degree of severity of chronic catarrhal gingivitis, giving way to the advanced forms of the disease, and this process was more pronounced in children living in ecologically polluted region.

Sex differences of odontometrical indexes crowns of molars.

Modern reconstructive methods of dentistry (stopping, restoration, and prosthetics with different types of orthopedic constructions) require detailed examination of the anatomical structure of the teeth crowns, especially examination of the knowledge about the relief of masticatory surface. That is why, we conducted a detailed examination of the features of odontoglyphics of molars, according to the sex and determination the odontometrical teeth indices of the citizens of Ternopil region. To achieve the goals, we use the following research methods, such as odontological, odontometrical, and statistical.