Репозиторий Университета

© 2019, Jaypee Brothers Medical Publishers (P) Ltd. All rights reserved. Introduction: Bruxism is one of the mounting questions in contemporary dentistry due to its high prevalence, various clinical presentations, difficulties in diagnostics and treatment, demanding a complex approach from doctors of different specialties. Aim: The aim of the current study was to describe the electromyographic values of chewing muscles in healthy persons and patients with bruxism and to find the biomarkers for early diagnostics of bruxism. Materials and methods: During retrospective investigation patients with bruxism were divided into two groups: group botox and bruxism. The control group was named the group-no complain. Results: Remarkable differences were found in group botox (no complain) in tests, rest and pressing in occlusion for chewing muscles symmetry index (CMSI%). Conclusion: As a result, we revealed a total bio-electric muscle activity index (BMIAI) in healthy patients and patients with bruxism in tests with pressing in occlusion, grinding and rest. All the values received to hold a high-reliability index, which makes them useful for everyday clinical practice. Clinical significance: Definition of electromyography (EMG) values IMPACT index of chewing muscles in healthy and bruxing conditions allows to carry out early diagnostics of bruxism and to evaluate the effectiveness of mio relaxation therapy.

The study objective was to determinate variations of stato-dynamical functional markers of postural balance system in the process of malocclusion treatment. Twenty patients aged from 14 to 30 years with class II malocclusion were recruited for this prospective study. All patients underwent electromyography of mm. temporalis and mm. maseter in rest and at maximal jaws pressure. Postural balance was evaluated by stabilometry platform and body's regions relationship was assessed by computer optical topography. Orthodontic interventions included using occlusal splint, dental straps or 'TwinForce' device. There were two diagnostic sessions: before and after one month of orthodontic treatment. The majority of patients after anterior dislocation of mandible demonstrated significant increase in unilateral masticatory muscles activity (р<0.05) which correlated with iliac crest position. According to computerized topography data superior iliac crest position was registered in opposite side with regard to muscle hypertonia. According to stabilometry data forward translation of the mandible resulted in retroversion of total pressure point projection (р<0.05). Asymmetric muscle working in the process of occlusal adjustment may provoke postural imbalance in distal body regions. It dictates postural system condition monitoring during orthodontic treatment.