Studying the effectiveness of using the combined osteoplastic materials in reconstructive interventions in the oral cavity

Background. The scientific research of leading dental schools is associated with various aspects of reconstructive interventions in the treatment of patients with secondary adentia, periodontal diseases and dental implantation. When replenishing lost bone, autogenous bone tissue is recognized as the “gold standard”, but its volume is often limited, while the problem of traumatization of the donor zone arises. A promising trend in the development of reconstructive dentistry is the combination of autogenous bone in the form of bone chips (ABC) and xenogenic bone material (ХBM) obtained from cattle tissues. At the same time, the issues of optimal volumetric proportions of the components of such a composition, as well as the problems of choosing the anatomical localization of the donor site, remain the subject of discussion. Objective to experimentally substantiate the effectiveness of the use of a composition of autogenic bone chips from the intraoral donor zone and xenogenic bone material in guided bone regeneration (GBR). Materials and methods. The object of the study was 12 mature Chinchilla rabbits weighing 2500-3200 g. male. The animals underwent the formation of a bone defect in the lower jaw area, after which a GBR was performed A composition consisting of a mixture of 25 % ХBM and 75 % ABC from the intraoral donor zone (mandible) was used as an osteoplastic material. Results. The conducted study of the obtained samples confirmed intensive reparative processes in the field of surgical intervention using a mixture consisting of 25 % ХBM and 75 % ABC obtained from the intraoral donor zone. Conclusion. Traumatization of the donor area can be significantly reduced due to the possibility of replenishing the volume of bone tissue with autogenous bone in combination with xenogenic bone material. These results are recommended to be used during reconstructive interventions in the oral cavity during GBR in conditions of a limited amount of autogenous bone.