Treatment of hypervascular formations is challenging surgery. The solution of this problem is due to use a multidisciplinary approach, involving complex endovascular and surgical treatments. Patho-morphological study of remote hypervascular formations in treatment was carried out. That treatment consisted of an endovascular embolotherapy and an endovasal sclerotherapy in various combinations. The embolization of blood vessels leads to a complete reduction of blood flow in the formation area, the development of diffuse inflammatory infiltration in the background on tissue ischemia. In the future, developing ischemic necrosis fol-lowed by scarring of tissue surrounding the vascular formation. Sclerotherapy causes damage to the vascular endothelium with fibrin formation and hemolysis of red blood cells in the lumen of the veins. Moreover, there are a significant fibrosis, hyalinosis and inflammatory reaction of the tissues surrounding the vessels. Further development of this process leads to a final sclerosis and fibrotic scarring of the surrounding tissues. The combi-nation of endovascular embolization and sclerotherapy allows to achieve a reduction of blood flow in the arterial vascular malformation department and to cause a tissue fibrosis in the cavernous malformations. Endovascular therapy reduces the risk of bleeding in surgery and develops the capacity of radical treatment.

The aim of the study is to identify the association between the severity of maxillofacial trauma and its origin. The study has included 58 cases of facial bone fractures in children of different ages received in different circumstances. All patients were treated in Maxillofacial Department of Voronezh Regional Pediatric Hospital № 2. In this paper it is shown that the gravity of the injury is directly dependent on the forces of the action of damaging factors, which is determined by the circumstances of an injury. The injuries are divided into two groups: low-speed trauma group and high-speed trauma group. The study has proved the necessity to reveal the separate group, i.e. medium-speed group of the traumas typical for children (a fall from a bike, a playground trauma). The results of this study are the following: the most frequent trauma in children is a low-speed trauma (a fall from one’s height, a criminal trauma), the most severe trauma is a high-speed-one (a high fall, road-traffic accidents, a blow into a face from a cattle).

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The effect of osteoplastic materials of various fractions «Klipdent», «Bioplast-dent» on the speed and quality of processes osteoreparation of bone defect resulting from traumatic removal of teeth of the lower jaw was studied. The authors note morphologically confirmed an increase in the intensity of the processes of osteoreparation in the field of bone defect. According to the results of morphological experimental study it was established that regeneration of microcirculation more pronounced and accelerated in average by 3-5 day compared with the normal process. Acceleration of process of formation of bone gaps immersed osteocytes was more pronounced when using finely dispersed substances, acceleration of the process compared to the normal average of 6-8 days. Collagen framework was formed on 6-8 days of experiment that was ahead of the normal process for 5-7 days. The conducted morphological research can testify about the acceleration of the processes of regeneration of bone tissue in comparison with normal for 6-7 days, regardless of the modifiers process. An adequate selection of the type of osteoplastic material and a strict adherence to the indications for its use allows to increase efficiency of treatment of bone tissue defects of the maxillofacial area and to reduce the time of temporary disability of patients.

The choice of treatment of facial bone fractures in the early age remains a challenge for dentists and maxillofacial surgeons due to the peculiarities of child organism. The purpose of this study was to develop a differential approach to the choice of treatment of children´s facial bone fractures taking into account the age of a child, location of injury and possible complications. This paper presents the analysis of current epidemiological situation regarding to facial bone fractures in children in Voronezh city and Voronezh region. It is shown that the most common injuries is a fall from a height of its own growth, i.e. low-trauma; at the same time the number of high-speed traumas, such as road-traffic accidents, high falls, has decreased. The analysis was carried out 58 cases of facial bone fractures in a group of children from 1 month to 16 years being treated in Maxillofacial Department of Voronezh Regional Pediatric Hospital №2. The developed model of differential choice of treatment of facial bone fractures in children allows to choosing the method taking into account a child age, location of injury and severity, as well as possible consequences of surgery. The clinical monitoring has proved the efficacy of the model which gives an opportunity to decrease post-traumatic complications associated with growth and occlusion deformations as well as complications of inflammatory genesis. It was convincingly shown the need for follow-up care of children with facial fracture that the doctor-orthodontist should continue. The presented data of this study about correlation between surgical and conservative treatment of facial bone fractures in children coincide with the worldwide statistics showing the current tendency to a wide application of mini-invasive methods of fractures fragments immobilization.