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.

Published by Oriental Scientific Publishing Company © 2018. The study assessed stress and brux activity among dental students during exam (stress) and non-examination (non-stress) periods. The study was initiated as a single group design with the total number of participants 36 (25 females and 11 males). All the participants were examined twice (once in a stress period and once in a non-stress period) according to “Clinical Functional Analysis”, which includes questions about students’ medical and dental history, as well as muscle palpation results. Two «BruxCheckers» (BCs) were applied, one for the upper jaw, the other for the lower jaw, two times for examination and non-examination periods. After the use, the «BCs» were photographed according to the research protocol and the abraded facets area on «BCs» was calculated in square millimeters. The research showed that during a stress period students may have headaches, cramps and pain in shoulder and neck muscles. The research also revealed that during the stress situation the abraded area shifts from frontal teeth to chewing teeth and brux episodes can occur more frequently and with a higher load. Chewing teeth (premolars in our study) are more adapted and more useful for such a condition. Accordingly, our students shifted their brux behavior from teeth 33 and 31 to teeth 15 and 24. Therefore, exams are a strong stress factor for dental students. In turn, prolongated stress can be an indicator of risk factor and have a negative effect for health of the craniomandibular system.

© 2018 ABV-Press Publishing House. All rights reserved. Bruxism is stereotypical movements of the mandibula accompanied by grinding or clenching of teeth. Bruxism has 2 circadian manifestations: during sleep (nocturnal bruxism) and during wakefulness (diurnal bruxism). Etiology of the disease is unclear but occlusal disharmony, stress management, basal ganglia dysfunction, and genetic factors are being discussed. An association between bruxism and other motor disorders such as Parkinson's disease, oromandibular dystonia, Huntington's disease, as well as some drugs, is observed. For bruxism diagnosis, questionnaires, clinical examination, polysomnography, electromyography, and brux checkers are used. The leading treatment method for bruxism and accompanying dysfunction of the temporomandibular joint is local administration of botulinum neuroprotein into the temporal, masseter, and lateral pterygoid muscles.