[Optical density of the mandibular head in cases of TMJ dysfunction and asymmetry of masticatory muscles activity].

There was an examination of 20 patients (12 women and 8 men), aged 30 to 50, with TMJ dysfunction and with partial absence and abrasion of teeth with decrease in the height of the lower facial part and distal mandible shift, and of 12 people (7 women and 5 men), aged 20 to 40, with intact dentitions using electromyography of masticatory muscles and computer tomography, followed by evaluation of the optical density of mandibular head. Analysis of the results enabled to determine the presence of disorders of the balanced activity of masticatory muscles and enables to determine alterations in the optical density of mandibular head. It is necessary to consider the obtained data in planning the prosthetic treatment and preparation of the mouth for prosthetics of patients with TMJ pathology.

[Means of developing personnel potentials of dental orthopedic service in southern regions of Tiumen' oblast].

The article exposes overall analysis and objective evaluation of personnel potential of orthopedic dental service in southern region of Tyumen oblast. Actual issues of enhancement of orthopedic dental service in this region are discussed.

[Biomechanical grounds for use of lower molar segments after tooth preservation operations]. / Biomekhanicheskoe obosnovanie ispol'zovaniia segmentov nizhnikh moliarov posle zubosokhraniaiushchikh operatsii.

The mathematical modeling and clinical testing of results of usage of low molar segments as supporting elements after tooth preserving surgery have been made. After hemisection and crown-radicular separation the critical load for low molar segments is more than 30 kg; after root amputation the critical load for low molar segments is more than 18 kg. The mathematical modeling, clinical observation, and X-ray photography have shown that the remained supporting system of low molars provides a full functioning of the teeth-jaw system after crown radicular separation and hemisection tooth preserving surgery.

[Hormonal correction in combined therapy of temporomandibular joint dysfunction in women]. / Rol' gormonal'noi korrektsii v kompleksnom lechenii bolevogo sindroma disfunktsii visochno-nizhnecheliustnogo sustava u zhenshchin.

Pain dysfunction syndrome of the temporomandibular joint (TMJ) in women is often accompanied by mammary and reproductive disorders associated with endocrine disturbances. 30 female patients aged 19-35 years suffering from of the pain dysfunction syndrome TMJ combined with intact dentition and orthognathic occlusion were studied. Dental examination was followed by gynecologic examination. According to the treatment the patients were divided into 2 groups. Group I included women who were administered conventional treatment (orthopedic treatment, drug and physiotherapy). In group II patients conventional therapy was also combined with monophase oral contraceptive "Femoden". Efficacy of treatment in group I was 46.67%; while group II patients showed a 100% favourable effect. Besides, combination of dental and gynecologic therapy was found to exert a 2.1 times more stable clinical effect us compared to conventional treatment. Hormone correction in women with reproductive pathology results in prolonged control of the pain dysfunction syndrome TMJ due to steroid normalization (hypothalamic, hypophysial, ovary steroid normalization) and has no side effects.

[Steroidogenesis disorders in women with temporomandibular dysfunction]. / Narusheniia steroidogeneza u zhenshin s disfunktsiiami visochno-nizhnecheliustnogo sustava.

The aim of the study was to trace hormone shifts in women suffering from different manifestation of the TMJ pain dysfunction syndrome. Levels of some blood steroid hormones (oestradiol, progesterone, testosterone, cortisol) were determined in 193 female patients aged 14-70. The object of study was blood serum collected in different menstrual phases. It was found that when pain dysfunction syndrome of the TMJ was accompanied by intact dentition and orthognathic occlusion blood steroid levels demonstrated shifts since puberty. In pain dysfunction syndrome of the TMJ accompanied by occlusal disharmony steroid shifts were first registered an early reproductive age. In patients without pain dysfunction syndrome of the TMJ steroid values remained close to those of healthy control. Shifts in steroid production may be indicative of impaired steroidogenesis in women with pain dysfunction syndrome of the TMJ.

[A morphological assessment of periodontal tissue status in the postshock traumatic period in an experiment]. / Morfologicheskaia otsenka sostoianiia tkanei parodonta v postshokovom travmaticheskom periode v éksperimente.

Shockogenic sublethal mechanical multiple injuries were induced in outbred albino rats according to the method developed by Noble-Collip and periodontal tissues were examined histomorphologically in various periods after shock. Atrophic changes in periodontal tissues and dental pulp progressed starting from day 1 and reached the maximum on day 28. The greatest shifts were observed in the gingivodental epithelium (hyperkeratosis), periodontium (lymphocyte and macrophage infiltration), alveolar bone (lacunar resorption), and pulp (odontoblast reduction and decreased pulpocyte count). Phasic reactive changes in the periodontium after shock and trauma require timely correction.

[The self-regulation of maxillodental anomalies in preschoolers and schoolchildren]. / Samoreguliatsiia zubocheliustnykh anomalii u detei doshkol'nogo i shkol'nogo vozrasta.

The authors analyze the data that characterize the incidence and peaks of autoregulation of maxillodental abnormalities in 535 children aged 2 to 16. Autoregulation of deep occlusion was found to occur at the age of 4-7, of prognathic occlusion at 2-5, of the cross occlusion and of abnormalities of the position of individual teeth at the age of 7-10.