BASIC CONCEPTS OF FACIAL BONE DEFECTS AND MODERN APPROACHES TO THEIR RECONSTRUCTION

Аннотация

The regeneration of Craniofascial Bones is a complex and multifaceted process, the role of biomaterials in this process is extremely important. This process is mainly aimed at eliminating the problems caused by damage or loss of bone tissue, and aims to restore the natural structure and function of bones in the craniofacial area. Biomaterials, in turn, serve as a key tool in creating a tissue environment in this process, providing favorable conditions for cell growth and differentiation, as well as promoting the formation of new bone tissue. Keywords: craniofascial bone, regeneration, biomaterials, mechanical strength, polymers, extraction, bone tissue. In the process of regeneration of craniofacial bones, biomaterials are used in various forms. They are used to fill bone defects, provide mechanical strength and increase biological activity. Biomaterials can be natural or artificial. Natural biomaterials include plant or animal-derived bone grafts, collagen, https://scientific-jl.org/obr 1 0 3 Выпуск журнала №-69 Часть–4_ Мая –2025 ОБРАЗОВАНИЕ НАУКА И ИННОВАЦИОННЫЕ ИДЕИ В МИРЕ 2181-3187 glucosoaminoglycans, and other extracts. Artificial biomaterials, on the other hand, include materials such as biocompatible polymers, ceramic-based materials, bioactive glass, and composites. One of the main tasks of Biomaterials is to support the growth of bone tissue. In the process, biomaterials act as a structural framework, that is, creating a growth platform for new tissue. At the same time, they also provide the biological signals necessary for the location, proliferation and differentiation of cells. These signals, in turn, stimulate the activity of bone cells and accelerate the regeneration process. Biocompatibility of biomaterials used in craniofacial bone regeneration is the most important requirement. When the Material is introduced into the body, it should not be rejected by the immune system, have toxic effects and cause allergic reactions. Therefore, in the development of biomaterials, their biological properties, rate of degradation and mechanical strength are carefully studied. The consistency of material degradation and new tissue formation ensures a successful regeneration process.[1] The complex anatomical structure of the bones in the craniofacial region creates additional requirements when choosing biomaterials. In this area, the bones are made up of many small fragments, including nerves, blood vessels, and other soft tissues. For this reason, biomaterials should not only restore bone tissue, but also be in harmony with soft tissues. This further complicates the biological activity and mechanical properties of biomaterials. Another important aspect of biomaterials in craniofacial bone regeneration is their integration and interaction with cells. The Biomaterial surface can be specially modified to promote cell adhesion and growth. These modifications may include tumor growth factors, peptides, or other biologically active substances. As a result, biomaterials not only provide mechanical support, but also create a biologically active environment..Cell therapy along with biomaterials and the use of growth factors are common in craniofacial bone regeneration. Biomaterials act as substrates for cells, while serving as tools in the transmission of growth factors. This combined approach significantly improves the formation of new bone tissue and increases the success rate of surgical procedures.[2] https://scientific-jl.org/obr 1 0 4 Выпуск журнала №-69 Часть–4_ Мая –2025 ОБРАЗОВАНИЕ НАУКА И ИННОВАЦИОННЫЕ ИДЕИ В МИРЕ 2181-3187 Different types of biomaterials have specific advantages and disadvantages in craniofacial bone regeneration. For example, while natural biomaterials have high biocompatibility and biological activity, their mechanical strength may be limited. Artificial biomaterials, however, may be mechanically robust but sometimes not well received by the body. For this reason, many studies have focused on the development of composite forms of biomaterials, in which natural and artificial components are combined. New technologies play an important role in the development of biomaterials in the regeneration of craniofascial bones. 3D printing technologies make it possible to create biomaterials in a clear and flexible form. This makes it possible to prepare implants that fully match the anatomical features of bone defect. Nanotechnology is also widely used to modify the surface of biomaterials and increase their biological activity. Surgical procedures performed in craniofascial bone regeneration using biomaterials significantly improve the quality of life of patients. By filling and restoring bone defects, the natural appearance and function of the face is restored, which has a positive effect not only on the physical, but also on the psychological state. Therefore, the development of biomaterials and the introduction of new approaches are of great importance in the field of Medicine.[3] 3D printin