AGE PECULIARITIES OF PROOXIDANT-ANTIOXIDANT BALANCE OF THE ORAL FLUID IN PATIENTS AGAINST THE BACKGROUND OF INTAKT DENTITIONS, PARTIAL AND COMPLETE ANODONTIA
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Keywords

lipoperoxidation, antioxidant system, oral fluid, partial and complete anodontia, dentures

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Barabash , O. (2022). AGE PECULIARITIES OF PROOXIDANT-ANTIOXIDANT BALANCE OF THE ORAL FLUID IN PATIENTS AGAINST THE BACKGROUND OF INTAKT DENTITIONS, PARTIAL AND COMPLETE ANODONTIA. Medical Science of Ukraine (MSU), 18(2), 39-44. https://doi.org/10.32345/2664-4738.2.2022.06

Abstract

Relevance. The study is conditioned by a steady tendency of demographic aging of the population. On the part of the dental system, one of the most common age-related disorders is the tooth loss and the necessity to replace dentition defects. Changes in dental status can affect the course of oxidative reactions and antiradical protection of the oral fluid.

Objective is to investigate the age peculiarities of the prooxidant-antioxidant balance of the oral fluid against the background of intact dentitions, partial and complete anodontia and their correction.

Material and methods. There were examined 103 patients aged from 16 to 89, with intact dentitions, under the conditions of partial anodontia and correction with bridges or partial removable laminar dentures and complete anodontia and correction with complete removable laminar dentures. The intensity of the processes of free radical oxidation of lipids in oral fluid was assessed by the content of diene conjugates (DC) and products that respond to thiobarbituric acid (TBA-AP). The antioxidant reserve of the oral fluid was characterized according to the activity of superoxide dismutase (SOD), glutathione peroxidase (GP) and glutathione reductase (GR).

Results. There was a significant increase of the indices of lipid peroxidation in the oral fluid, especially in middle-aged patients, which is confirmed by an increase in the content of DC and TBA-AP 5.9- and 4.5-fold, respectively, compared with data in adolescents. Such changes were consistent with a decrease in the activity of SOD, GP, GR of the oral fluid at 41.7-48.8% (p<0.05) relative to the values ​​in adolescence. In elderly and senile patients, the level of lipid peroxidation tended to decrease. The activity of antioxidant enzymes in elderly patients decreased at 28.6-49.8% (p<0.05), in the senile patients – at 29.6-63.6% (p<0.05) relative to the values ​​in the middle-aged patients. There has been an increase in the level of oxidative processes against the background of suppression of antiradical protection of the oral fluid in patients with partial or complete anodontia according to the data in the studied patients with intact dentitions, especially for people who use dentures.

Conclusions. Prooxidant-antioxidant balance of the oral fluid depends on age and dental status. The most significant changes in oxidative processes in the oral fluid are observed in the middle-aged people with a tendency to decrease in the elderly and senile patients. The level of free radical processes increases under the conditions of partial and complete anodontia, correction of various types of denture designs and depends on the material they were made of. Such changes occur against the background of suppression of the antioxidant reserve of the oral fluid (especially the glutathione system).

https://doi.org/10.32345/2664-4738.2.2022.06
Article PDF (Українська)

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