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The state of microcirculation with different perfusion intensity in the pulp and periodontal in young patients with functional disorders of the masticatory apparatus against the background of connective tissue dysplasia

The state of microcirculation of the periodontal and dental pulp can be used to identify and assess early signs of inflammation and chronic pain in the diagnosis of temporomandibular joint dysfunction syndrome (TMJ). 
The aim of the work was to evaluate typical microcirculation disorders (MCC) and mechanisms of perfusion regulation at different intensities in the pulp and periodontal of intact mandibular teeth in patients with TMJ dysfunction syndrome on the background of connective tissue dysplasia (DST). 
Material and methods. The main characteristics of the MCC of periodontal and pulp of intact teeth were studied by laser Doppler flowmetry in patients with TMJ dysfunction syndrome, united in the main (with DST) and control (without DST) groups. 
Results and discussion. A comparative analysis of the characteristics of MCC in the studied groups was carried out, taking into account different ranges of perfusion intensity values in the pulp and periodontal. Typical MCC disorders and the values of the ischemic index were determined at different perfusion intensity in the periodontal and in the pulp. Based on their analysis, differences in the mechanisms of regulation in patients from the control and main groups were revealed. Statistical verification of the reliability of the obtained results was carried out. 
Conclusions. It is shown that the nature of the distribution of patients across three ranges of values of MCC indicators is significantly different in the studied groups. A different relationship between the nature of MCC and the intensity of perfusion was revealed. It is concluded that the distinctive functional features of MCC in periodontal and dental pulp in patients of the studied groups are determined by the presence of DST, differences in the control of perfusion modulations, high functional activity of sympathetic calving of the autonomic nervous system with pronounced depression of cellular and humoral links of immunity.