Affiliation:
1. Private practice
2. Peoples' Friendship University of Russia" (RUDN University)
Abstract
Aim. To study and analyze the role of trace elements in pathomorphological changes occurring in teeth with destructive forms of apical periodontitis in the acute stage by means of light and electron microscopy.Materials and methods. Pathological changes were studied on 46 teeth with destructive forms of periodontitis in the acute stage using an Olympus BX-40 light microscope. Scanning electron microscopy was used to conduct X-ray microanalysis of 10 teeth.Results. The infiltration of the inflammatory focus is an indirect evidence of a change in the balance between the production of oxygen radicals by phagocytic cells in destructive forms of periodontitis and their elimination, which includes multifaceted interrelated factors, namely, direct damage to biomolecules, increased signaling of the nuclear factor, and cell death. The increased amount of studied chemical elements in the tissues of teeth with apical forms of periodontitis during the period of exacerbation allows us to assume that oxygen can become a source of free radicals and stimulate the process of resorption of the tooth root.Conclusions. Cellular infiltration found in biopsy specimens of teeth with destructive forms of periodontitis in the acute stage, as well as an increased content of trace elements in dental tissues, suggests that this contributes not only to loss of bone mass in the periapical space, but also leads to the destruction of apical tissues. Trace elements are biomarkers of oxidative stress. Treatment should be aimed at accelerating the restoration of oxidative balance.
Subject
General Earth and Planetary Sciences,General Environmental Science
Reference28 articles.
1. Jakovljevic A., Andric M., Miletic M., et al. Epstein-Barr virus infection induces bone resorption in apical periodontitis via increased production of reactive oxygen species. Medical Hypotheses. 2016; 94: 40-42. DOI: 10.1016 / j.mehy.2016.06.020.
2. Sirak S.V., Kopylova I.A. Profilaktika oslozhneniy, voznikayushchikh vo vremya i posle endodonticheskogo lecheniya zubov (po rezul'tatam anketirovaniya vrachey-stomatologov). Mezhdunarodnyy zhurnal eksperimental'nogo obrazovaniya. 2013;(8): 104-107.
3. Tibúrcio-Machado C. S., MichelonC., Zanatta F. B. , et al. The global prevalence of apical periodontitis: a systematic review and metaanalysis. International endodontic journal. 2021;54(5): 712-735. DOI: 10.1111 / iej.13467
4. Jakovljevic A.N., Nikolic, J. Jacimovic, et al. Prevalence of apical periodontitis and conventional nonsurgical root canal treatment in general adult population: An updated systematic review and meta-analysis of cross-sectional studies published between 2012 and 2020. Journal of Endodontics. 2020; 46 (10):1371-1386. DOI:10.1016/j.joen.2020.07.007 e1378
5. Shchepot'yeva YU.V., Suntseva Ye.S., Reshetnikova M.M. Etiologicheskiye faktory destruktivnykh form periodontita. Materialy MSNK «Studencheskiy nauchnyy forum 2022». 2020; 6:29. (In Russ.).