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BACKGROUND: In modern conditions, in the widespread clinical practice in the prosthetics of patients with complete edentulism, the anatomical and physiological method and its modifications have become popular. However, for all its reliability and ease of use, this method is not without drawbacks. AIM: Improving the effectiveness of complete removable dentures. By developing a new method for determining the central ratio of the jaws. MATERIAL AND METHODS: An innovative method for determining the central ratio of the jaws was created by improving the functional-physiological method for determining the central ratio of the jaws, using a gnatometer and teleradiographic examination. RESULTS: 100 prostheses were made by this method for 74 patients. A comparative correlation analysis of teleradiographic images with old prostheses before treatment, with a gnatometer in the oral cavity during treatment, and with new prostheses 2 months after treatment was carried out. CONCLUSION: The proposed method for determining the CSF allows highly accurate, in accordance with individual anatomical parameters and features, to determine the bite height and central occlusion of the patient as a model for the reconstruction of the future dentition, taking into account and in accordance with Angles skeletal class.

Dental implant therapy is a well-accepted treatment modality. Despite good predictability and success in the early stages, the risk of postplacement inflammation in the long-term periods remains an urgent problem. Surgical access and decontamination with chemical and mechanical methods are more effective than antibiotic therapy. The search for the optimal and predictable way for peri-implantitis treatment remains relevant. Here, we evaluated four cleaning methods for their ability to preserve the implant’s surface for adequate mesenchymal stem cell adhesion and differentiation. Implants isolated after peri-implantitis were subjected to cleaning with diamond bur; Ti-Ni alloy brush, air-flow, or Er,Cr:YSGG laser and cocultured with mice MSC for five weeks. Dental bur and titanium brushes destroyed the implants’ surfaces and prevented MSC attachment. Air-flow and laser minimally affected the dental implant surface microroughness, which was initially designed for good cell adhesion and bone remodeling and to provide full microbial decontamination. Anodized with titanium dioxide and sandblasted with aluminum oxide, acid-etched implants appeared to be better for laser treatment. In implants sandblasted with aluminum oxide, an acid-etched surface better preserves its topology when treated with the air-flow. These cleaning methods minimally affect the implant’s surface, so it maintains the capability to absorb osteogenic cells for further division and differentiation.

BACKGROUND: The modern trend of dentistry is the principle of minimal invasiveness. Preservation of the vitality of the tooth is an actual principle of operation. In the treatment of deep caries or pulpitis by a biological method, the pulp chamber is often opened. Even with bleeding, there is a chance to leave the tooth vital. After hemostasis, antibacterial treatment of the carious cavity and padding were performed. Domestic manufacturers offer two analogues for these purposes "Trioxident" and "Kanal MTA. AIM: The purpose of the study is to compare the effectiveness of domestic materials "Trioxident" and "Kanal MTA" when used as a therapeutic and insulating coating of pulp. MATERIALS AND METHODS: 27 clinical cases were analyzed in patients aged 2335 with a diagnosis of "deep dentine caries" K02.2 (according to ICD-10) of molars and premolars of the upper and lower jaws. All clinical cases combined patients' complaints of intermittent aching pains, the depth of carious cavities and the opened tooth cavity at one point. The patients were divided into two groups, in each of which the following stages of diagnosis and treatment were carried out. Diagnostics was carried out before the start of work and during examination after 7 days, 6, 12, 18 months. The stages of caries treatment were the same, only the materials for closing the perforations differed: in group 1 "Trioxidant", in group 2 "Kanal MTA". RESULTS: It is noted that the use of materials "Trioxident" and "Kanal MTA" is an effective choice for closing perforations of the pulp chamber in the treatment of deep caries and chronic pulpitis. Pain was absent in 30.8% and 42.1% of patients in groups 1 and 2, respectively. After 6, 12, 18 months, patients did not complain about the treated teeth, the cold test was positive for a short time in 26 cases, the average current at electroodontodiagnostic (minimum value 4, maximum value 8) was 5.6 A, 25 restorations had an Alpha rating according to Ryge criteria, in one case in group 1, the tooth crown darkened pointwise from the vestibular surface. CONCLUSION: The materials "Trioxident" and "Kanal MTA" are recommended for use in the biological method of pulpitis treatment. They have therapeutic potential to cover the pulp and are competitive in relation to the foreign equivalent of "MTA Prorut", which gives them an economic advantage in providing dental care within the framework of compulsory medical insurance.