LONG-TERM RESULTS OF MAXILLOFACIAL BONE GRAFTING USING DENTAL IMPLANTS

Subject. In the research we present the long-term results of strength and stability of dental implants in 4, 6, 12 months dynamics in case of jaw bone tissue augmentation by the different methods. The authors highlighted the relevance and significance of this research issue, especially in the cases when implantation is the only possible way for fixed (relatively fixed) prosthetic treatment. Contemporary treatment protocols are aimed at extending of implants and their dental prostheses life term [1, 4, 12, 15]. In this context, analysis of the results of jaw bone tissue augmentation operation efficiency and stability of dental implants in dynamics have the particular importance. The authors made data analyses of actual local and foreign researches. The objective of the study is the analyses of jaw bone tissue augmentation operation by the method of autotransplantation and guided bone regeneration with using of xenogenic filler material efficiency in dynamics 4, 6, 12 months after operation. Methodology: Statistical analyses were done with using of JMP Pro Statistical Discovery (v. 18.0) Mann-Whitney’s and Kolmogorov-Smirnov tests/ In this research 48 patients with severe atrophy of bone tissue were included. The study included 43 clinical cases of severe bone tissue atrophy, in which 76 implants were placed in augmented bone tissue. The effectiveness of dental implantation was evaluated after 4, 6, and 12 months based on clinical signs and torque testing using the Periotest M device. The results: After 4 months, we recorded cases of adequate osseointegration in the autoplasty group 23% more often than in the second group. Torque testing after 6 and 12 months recorded adequate average values of implant stability in both groups. The conclusion: while using autoplastic materials during augmentation of jaw bone tissue, the average measures of the implant secondary stability in 4 months after-operation period statistically significant have better measures than in the group after the using of xenotransplants, which allows for earlier timing of orthopedic alignment.