[CHRONIC OSTHEOMYELITIS OF THE FACIAL MIDDLE ZONE WITH SPREADING ON THE BONES OF CRANIAL BASE ON BACKGROUND OF NARCOTIC DEPENDENCE].

Own experience of treatment of a narcotic dependence patients, suffering osteomyelitis of jaws, was analyzed. In those patients, who have had exposed themselves towards toxic impact of narcotic substances (even after arrest of the consumption) for a long period of time, the inflammation spreading on the bones of facial middle zone and the skull base with occurrence of a life3threatening purulent3septic, including intracerebral, complications (cerebral аbscess, meningitis, sepsis) were observed. Additional division of cerebral abscess on open and closed forms for optimization of diagnosis of іntracranial complications was proposed.

[DIAGNOSTICS OF POSITION OF THE MOTOR AND TRIGGER POINTS: OF THE CHEWING MUSCLES FOR ZYGOMATIC COMPLEX FRACTURES].

Existing treatment methods of zygomatic complex fractures, which are complicated by contrac- ture of the masseter as a result of displaced bone fragments, have to be improved. Lack of muscle relaxation leads to the formation of local hypertonicity. In spasmodic muscle fibers varies perfusion and hypoxia occurs, which is accompanied by the release of inflammatory mediators and activation of pain receptors. Over time, areas formed local hypertonicity specific trigger points that contain multiple sensory loci and include one or more sensitive nerve endings. A device for the effective electromyographic study of masseters as a source of their condition and the dynamics of changes in masticatory muscles during patient treatment by improving the fixation system on the face of the patient and the introduction of more perfect spatial coordinate system for mathematical calculations masseter motor position (or triggered) point. Patients were examined before and in the dynamics of treatment according to our methodology, which included proper masseter relaxation, reposition and fixation of bone fragments and further medical therapy.

[Determination of regimes of functional loading in the patients with traumatic mandibular fractures after osteosynthesis performance using modern methods of computer modeling].

There are presented the modern possibilities of application of the computeric modeling methods, including CAD/CAM/CAE technologies, in the planning of osteosynthesis and determination of the functional loading regimes in the patients, suffering traumatic mandibular fracture. Virtual models of the systems "bone-fixator", created on the ground of analysis of the spiral CT and functional investigations data, have had demonstrated highly precisely the anatomic peculiarities of the patients chewing system, ununiform physicomechanical properties of the fractures bone tissues and conditions of functional loading while the teeth closure. Mathematical calculations, conducted on the models, have permitted to estimate the value and character of the local pressure and deformity, occurring in the system elements, and to estimate its rigidity and safety in conditions of the chewing load. The model calculations were taken in account while choosing the patients rehabilitation regimes in posttraumatic period. Clinical investigations, conducted in immediate and late follow-up periods after the operation, have confirmed the trustworthiness of the model calculations and possibility of the method application while decision making in complex, atypical clinical settings.

[The research of biodegradation of a composite material used in reconstructive and reparative surgery of maxillofacial area].

Dates about the research of biodegradation of epoxy-polyurethane composite material used in reconstructive and reparative surgery of maxillofacial area are reflected in the article. Was founded: 1) notable biodegradation of species from epoxy-polyurethane composition in the term of observation up to 6 months was not founded. That testifies their preservation of physical and mechanical properties. 2) founded, that in species from epoxy-polyurethane composition, which contain levamisole, processes of biodegradation are faster then in species from pure epoxy-polyurethane composition and in species from epoxy-polyurethane composition with hydroxyapatite; 3) material from epoxy-polyurethane composition, which contains levamisole and hydroxyapatite, stays in biological environment in small quantity of petty fragments during the incubation in term of 2 years. So, it biodegrades practically totally. Authors suggest on the basis of achieved information, that the use of epoxy-polyurethane constructions that biodegrade, is pertinently in reconstructive maxillofacial surgery.

[New methods of complex treatment of upper micrognation combined with stenosis of the dental rows].

This paper presents the new methods of surgical treatment of upper micrognation, combined with stenosis of dental rows, described advantages of using of bioresorbable devises for osteosintesis for treatment of patients with deformations of middle facial zone.

[Expert systems as the instrument for postop diseases]. / Ekspertna systema iak zasib diahnostyky khirhichnykh zakhvoriuvan'.

There was proposed an expert system for conduction of differential diagnosis of surgical diseases, stimulating the mathematic models creation, the filling up of tables of the features values of all diagnostic hypothesis possible with subsequent staged exception of the least adequate of them. The expert diagnostic system proposed may be applied in clinical practice and pedagogic process while teaching of students.