The studies involved 30 patients. To preserve the hole after tooth extraction, 2 types of osteoplastic materials were used: xenomaterial (group 1), as well as material based on hydroxyapatite with collagen and lincomycin "Kollapan-L" (group 2). It was established that the dominant microbiota in the studied samples were representatives of obligate anaerobic and microaerophilic bacteria belonging to taxonomic groups: peptostreptococci, propionibacteria, bacteroids, fusobacteria and other gram-negative anaerobic bacteria, as well as gram-positive microaerophilic actinomycetes and streptococci. When analyzing the data on the healing of the socket, it was noted that the best level of soft tissue epithelization was obtained when using DCS. The wound was completely filled with regenerating soft tissues by day 7 after removal in 81.6% of cases. Preservation of the socket using DCJ allowed creating optimal conditions for dental implantation. The level of regenerated bone tissue in height was 94.8% of the initial values. In the horizontal direction, this figure reached 96.3%.

Bone atrophy, demineralized lamb bone, microflora, preservation.

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