Malocclusions that have not been eliminated in time can cause complications such as periodontal diseases, TMJ and muscle dysfunctions.An objective indicator of functional disorders is the change of bioelectrical activity of masticatory muscles. The aim of our study was to estimate thefunctional state of maxillodental system in order to develop the individualized treatment and achievement of high functional and aestheticoptimum in patients with associated occlusal abnormalities who need complex treatment. All examined patients had deviations of the averageamplitude of bioelectrical activity of muscles, asymmetry in muscle function, bursts of spontaneous bioelectrical activity at rest, chewing cyclefragmentations, changes in rest and activity ratio during chewing. One of the most important criteria for the transition to the next stage of treatment isnormalization of bioelectrical activity of the muscles. Such approach allows to achieve stable and long-lasting functional results of the treatment.

The purpose of the study was to study and comparatively analyze the nature and degree of changes in electromyographic activity of the main and auxiliary chewing muscles in patients with temporomandibular joint dysfunction before and after the use of treatment with myorelaxant splints. Materials and methods. Five-year study on the basis of Stomatological Medical Center of Bogomolets National Medical University of patients with temporomandibular joint dysfunction (274 people) was conduscted. The general analysis provided 1024 detailed electromyograms before, after and at the stages of treatment of patients with temporomandibular joint dysfunction. Results and discussion. The results and conclusions of the analysis of the effectiveness of the treatment with the use of myorelaxant splints in the treatment of temporomandibular joint dysfunction indicate an increase in the quality of treatment of this pathology in patients and a reduction in the period of achievement of the result. The results obtained after 12 months indicate that the effectiveness of treatment of patients of control group I (with the lowest intensity of symptoms of temporomandibular joint dysfunction) reached 89.1±1.3%; control group II – up to 78.3±1.3%; control group III – 77.3±1.3%. In general, a study of the state of temporomandibular joint, complex clinical and paraclinic diagnosis, modern orthopedic treatment and prevention of musculoskeletal dysfunction of the temporomandibular joints were carried out. Based on the obtained data, the effectiveness of this algorithm of complex diagnosis, treatment and prevention of musculoskeletal dysfunction of temporomandibular joint was developed, clinically implemented and evaluated. Also, the data obtained as a result of the study by the authors were the basis for finding and correcting new methods and algorithms for diagnosing and treating pathology. The original author's concept of the pathogenesis of muscular-articular dysfunction of temporomandibular joint, used in the study and scientifically substantiated by the authors, united all existing theories of the development of this disease. The multifactorial analysis revealed an increase (p <0.001) of the risk of not achieving the effect of treatment by reducing pain syndrome with an increase in scores on the Bayers scale before treatment, odds ratio = 1.6 (95% of BI 1.4–1.9) for each point of growth score (when standardizing on three other risk factors). An increase (p=0.002) of the risk of not achieving the effect of treatment by reducing pain syndrome with an increase in the asymmetry of the indicator J_MM_A_max, Index Bayers (visual analogue scale) = 1.08 (95% BI 1.03–1.12) for each point exceeding the value of the indicator for the left half above the right (when standardizing on three other risk factors). Also, an increase (p= 0.049) of the risk of not achieving the effect of treatment for a decrease in pain syndrome with an increase in the asymmetry of the J_MM_A_mean indicator, odds ratio = 1.28 (95% of BI 1.00–1.65) for each point exceeding the value of the indicator for the left side above the right side (when standardizing on three other risk factors) was found. Conclusion. Such a thorough approach to the implemented model of diagnosis and treatment of patients with temporomandibular joint dysfunction and a synchronized complex of studies and treatment of this pathology, developed in accordance with it, provided an opportunity to assess qualitative and quantitative changes in the link of the chewing apparatus and the central link of the corresponding functional biosystem that ensure the formation and implementation of the main functions of the temporomandibular joint

We brought to the light that one of the the most controversial issues is

Recent studies showed that regaining the occlusal contacts is oneWork objective: optimization of the diagnostic and treatment process by analyzing the dynamics of changes in T-scan indicators, which will minimize the risk of error in carrying out re-prosthetics after removal of the structures that have become a trigger factor or the cause of manifestations of functional disorders of dento-maxillofacial apparatus.

The aim: To propose the algorithm of complex rehabilitation of patients with iatrogenic occlusal disorders combined with vertical malocclusion and prove its efficiency. Materials and methods: 55 patients with iatrogenic occlusal disorders combined with vertical malocclusion aged from 23 to 47 years old (mean age 36.1±5.2 years) including 32 females and 23 males were examined at Dental Medical Center of Bogomolets National Medical University during 2019-2021 years. All patients before and 6 months after treatment underwent clinical and laboratory examination, X-ray, electromyography, T-Scan Digital Occlusal Analysis. Results: In all 3 groups of patients we observed complete disappearance or significant reduction of complaints and symptomatic manifestations after 6 months of complex rehabilitation. Conclusions: Our study showed that the proposed algorithm of complex rehabilitation of patients with iatrogenic occlusal disorders combined with vertical malocclusion, which provides a multidisciplinary and individualized approach, improves the efficiency of orthodontic treatment of such patients and significantly reduces the duration of treatment in all 3 groups. This sequence of diagnostic and treatment measures gives the best opportunities for the patient to achieve maximum functional and aesthetic result.