Avetikov D. S., Lokes K. P., Pronina O. M., Steblovsky D. V.

DENTISTRY

Scentific article

Abstract. The microcirculation system is the main link that provides metabolic homeostasis in organs and tissues, and metabolic disorders in the body, in turn, affect the structural and functional characteristics of the vessels of the microcirculatory tract, including periodontal tissues. The relevance of the study of microcirculation is determined by the fact that the nature of its violations can establish the initial stage of pathological changes in organs and tissues, as well as to choose the tactics of surgical treatment. Laser Doppler flowmetry (LDF) is one of the most informative, sensitive, reproducible methods to assess the state of microcirculation in periodontal tissues. The aim of the study was to study the local state of microcirculation in periodontal tissues by LDF in patients with odontogenic cysts of the jaws. Materials and methods of research. To assess the state of microcirculation by LDF examined 60 patients with odontogenic cysts of the jaws, including 26 men and 34 women. The mean age of patients was 35.42±2.1 years. The study was performed at the preoperative stage, on days 7 and 30 after cystectomy. Recording of each LDF-gram was performed at a temperature of 22° C, from 10.00 to 11.00 in the morning. To assess the parameters of the microcirculatory tract, the following indicators were taken: the mean value of tissue perfusion (TP), determination of the level of “flax” (SCO) – the standard deviation of the oscillations of the TP in a given period of time. Under conditions of normocirculatory type of periodontal tissue microcirculation, the lowest fixed parameter is in the projection of odontogenic cyst, where the amplitude of endothelial oscillations AmaxE (Hz) = (0.120±0.005) compared with intact periodontal AmaxE (Hz) = (0.210±0.032). Indicators of active flax motions have a similar amplitude, with a difference of ± 0.008 Hz. On the 7th day of observation, the patients have a hyperemic type of microcirculation. In 28% of cases during surgery, there is a stagnant type of microcirculation. On the 30th day of follow-up, normocirculatory, spastic and hyperemic types of microcirculation were recorded in both groups, but the number of patients with normocirculatory type increased by 16%, and with hyperemic type – decreased by 3%.

periodontitis, periodontitis, odontogenic cyst, microcirculation Р

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«Bulletin of problems biology and medicine» Issue 2 (160), 2021 year, 277-280 pages, index UDK 613.95+616.248+616.31-006.2

10.29254/2077-4214-2021-2-160-277-280