The main criterion for assessing the engraftment of dental implants is their high-quality osseointegration [1]. Unreasonable loads exerted on a dental implant integrated into the bone tissue lead to its premature rejection. Adequate osseointegration of dental implants is also influenced by their shape, size, quality of their installation, adherence to the operating protocol, as well as the start date of subsequent prosthetics [2]. A qualitative method for determining the stability of an installed dental implant is the method of periotestmetry. In the absence of general somatic pathologies and disorders in the structure of the dental system, stable osseointegration of dental implants, periotestometry data (averaged values for 16 strokes) are in the range from -8 to 0 units. The aim of the study was to analyze the osseointegration of installed dental intraosseous-on bone implants by performing periotestmetry. Materials and methods: The study group consisted of 116 patients who received 167 dental implants. At 1, 2, 4 months, half a year, a periotestmetric study was conducted using the Periotest M apparatus. Results and discussion: The analysis of the parameters obtained in the course of the study revealed the dependence of the periotestmetric data and the quality of osteontegration of intraosseous-extraosseous dental implants. Conclusion: The study of the indicators of periotestmetric data for intraosseous-bone dental implants made it possible to qualitatively predict the results of orthopedic treatment, and also made it possible to assess the degree of osseointegration of the installed dental implants.

Relevance: A key aspect of success after dental implant surgery is obtaining reliable osseointegration of the installed dental implant. In modern literary sources, the problem of consistency of osseointegration after the installation of dental implants is quite often touched upon. A number of authors argue that the quality of osseointegration of a dental implant depends primarily on its primary stability. Long-term studies show that bone tissue permanently undergoes various resorption and recovery processes [1, 2]. Purpose to determine the effectiveness of alkaline phosphatase and collagen protein osteocalcin in oral fluid after dental implantation. Materials and methods: Clinical studies were carried out on the basis of the Clinics of the Samara State Medical University of the Ministry of Health of Russia. A total of 240 patients with a diagnosis of partial absence of teeth were operated on. All patients received dental implants. The median age was 44.2 years (24 to 62 years; 182 women and 58 men). Results and discussion: At the stage of orthopedic rehabilitation, most patients had a low index of oral hygiene, OHI-S averaged (2.63 0.27) c.u. All patients suffering from poor oral hygiene were recommended professional hygiene with the removal of soft and hard dental deposits. At the stage of dental implantation, the OHI-S and Mulleman index was (0.66 0.03) and (0.49 0.03) c.u. respectively. Conclusions: The results of the study showed that the increase in the titer of alkaline phosphatase and the collagen protein osteocalcin was statistically insignificant. The level of acid phosphatase titer in the oral fluid reaches its critical value two weeks after the dental implantation operation. Studies have shown that this indicator remains active up to six months after surgery. This indicator can be used to interpret various emerging trophic processes occurring in bone tissue after dental implantation.