The clinical and experimental study on the restoration of bone tissue with tissue engineering scaffold based on stem cells of adipose tissue and resorbable osteoplastic matrix. In a pilot study proved the effectiveness of the transplant, founded the dates of dental implantation. Use of tissue engineering scaffold led to organotypic reconstruction of bone tissue in the field of transplantation in patients with severe atrophy of the alveolar process of the maxilla and mandible. As part of a clinical trial were treated 20 patients.

The paper contains clinical examples of tissue-engineering construction based on multipotent stromal adipose cells application for tooth socket healing. The method do not only prevents the bone tissue resorption but allows recreating its volume.

The effectiveness of bone tissue formation by transplantation of tissue-engineering scaffold and frequently used osteoplastic material «Bio-Oss» combined construction in maxillary sinus floor was evaluated and marked differences in regeneration terms by this treatment mode were found out.

The results of our clinical pilot study tkaneinzhenemoy design based on multipotent mesenchymal stromal cells of adipose tissue showed that the use of this construction leads to the restoration of bone tissue and stimulate reparative osteogenesis. And also to outline directions for further clinical study on the Application of LIC VT in maxillo-facial surgery.

We developed a new method of creation of tissue engineering constructs for regeneration of the bone tissue based on the principle of free distribution of cells in a fibrin clot within a scaffold. The tissue engineering construct includes multipotent stromal adipose tissue cells committed in osteogenic lineage, platelet-rich plasma, and resorbed material on the basis of xenogeneic bone collagen. The culture of bone progenitor cells was characterized by the main markers of osteoblastic differon. The material meets all requirements for materials intended for tissue engineering. An innovative high-technological tissue engineering product for clinical application is prepared.

We performed a comparative study of reparative osteogenesis in rabbits with experimental critical defects of the parietal bones after implantation of commercial osteoinductive materials “Biomatrix”, “Osteomatrix”, “BioOss” in combination with platelet-rich plasma and transplantation of a tissue-engineering construct on the basis of autogenic multipotent stromal cells from the adipose tissue predifferentiated in osteogenic direction. It was found that experimental reparative osteogenesis is insufficiently stimulated by implantation materials and full-thickness trepanation holes were not completely closed. After transplantation of the studied tissue-engineering construct, the defect was filled with full-length bone regenerate (in the center of the regenerate and from the maternal bone) in contrast to control and reference groups, where the bone tissue was formed only on the side of the maternal bone. On day 120 after transplantation of the tissue-engineering construct, the percent of newly-formed bone tissue in the regenerate was 24% (the total percent of bone tissue in the regenerate was 39%), which attested to active incomplete regenerative process in contrast to control and reference groups. Thus, the study demonstrated effective regeneration of the critical defects of the parietal bones in rabbits 120 days after transplantation of the tissue-engineering construct in contrast to commercial osteoplastic materials for directed bone regeneration.

Use of synthetic osteoplastic materials not always leads to formation of the necessary bone tissue volume. The alternative high technological implantation material can become tissue engineering constructions containing osteogenic precursor cells. Clinical observation of sinus lifting with the use of tissue engineering construction demonstrates the efficacy, shortening the terms of operation wound healing, young bone tissue formation after transplantation and possibility to install implants already after 3 months if the amount of bone is sufficient for primary fixation.

The use of synthetic osteoplastic materials not always provides the required amount of the bone tissue. Transplantation of tissue-engineering constructs containing osteogenic precursor cells can be an alternative high-technology implantation method. Here we present the results of a pilot clinical study demonstrating safety of this method, accelerated healing of the operation wound, formation of young bone tissue after transplantation, and the possibility of mounting implants after 3 months in case of sufficient amount of the bone for primary fixation.