Cluster analysis of aetiological parameters of bruxism
DOI:
https://doi.org/10.32782/2786-7684/2025-1-7Keywords:
Bruxism, young patients, occludogram, pathological wear of teeth, bioelectrical potential of masticatory muscles, occlusion index, psychoemotional state, correlational dependenciesAbstract
The aim of the study – to establish a correlation between the degree of severity and the etiological factors of bruxism.Materials and methods. After a clinical dental examination of 377 people aged 25 to 44 years, 81 parameters characterizing the diagnosis of bruxism will be determined, to which the results of the dental examination were assigned (history collection, index and instrumental assessment of dental status, condition of masticatory muscles, TMJ and additional methods (ocludogram, orthopantomography, TMJ computer tomography, Brooks checker, masticatory muscle electromyography), polysomnography and temperature assessment. The digital material was processed by the method of variational statistics, the calculations were carried out using the computer program "MULTIFAC" 2/2 using multivariate, correlation and regression analysis. Mathematical analysis and verification of the reliability of the results, as well as the calculation of the arithmetic mean and root mean square errors were carried out on the basis of the "Statistica" software 6.0" and "Microsoft Office Excel 2003".Results and their discussion. When conducting a cluster analysis of the etiology of bruxism of 81 indicators, three groups of subjects were distinguished depending on the prevailing factor: the first group of patients with bruxism from the indicated signs showed a high correlation (r=0.99, p<0.05) with indicators: pathological types of bite (distal, deep, cross), the presence of supracontacts and orthodontic pathology; the second – with a high correlation (r=0.98, p<0.05) according to the signs: pathology of the temporomandibular joint; in the third group, the excited choleric temperament and psychoemotional state according to the criteria of lability of the autonomic nervous system in threatening situations and sleep disorders associated with general internal tension are reliably correlated with high indicators of temperament. Conclusions. The correlation in the first group was (r=0.99, p<0.05); in the second – (r=0.98, p<0.05), in the third (r=0.97, p<0.05), which allows prescribing etiotropic treatment.
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