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giesenhagen B. 4 , sirak s. V. 1 , sletov a. a. 1 , aybazov m. m. 5 , Tebyakina s. V. 1 , shchetinin e. V. 1 , Vukovic m. a. 6 , Koshel i. V. 1 , sirak a. g. 1 , petrosyan g. g. 1 , adamchik a. a. 7 1 stavropol state medical university, russian federation 2 Witten/herdecke university, Witten, germany 3 university of arad, arad, romania 4 university of frankfurt/m., frankfurt am main, germany 5 all-russia research institute of sheep and goat, stavropol, russian federation 6 praxisteam hasslinghausen, germany 7 Kuban state medical university, Krasnodar, russian federation

The article is devoted to the study of pathological changes in the mucosa of the maxillary sinus in case of solution of its continuity during surgical and endodontic dental procedures. The authors performed examination and treatment of 129 patients with perforation of the maxillary sinus bottom based on the radiological and histopathological studies. The authors established that morphological changes in inflammation of the maxillary sinus mucous membrane are chronic, which explains the impossibility of autotherapy of the developed diffuse sinusitis and allows to provide theoretical substantiation of the need of extraction during surgical intervention of the altered mucous membrane of the maxillary sinus.

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Ставропольский государственный медицинский университет, Россия 2 Кубанский государственный медицинский университет, Краснодар, Россия mechanisms oF reParaTiVe osTeogenesis unDer The inFluence oF PulseD laser oF inFrareD range shchetinin e. V. 1 , sirak s. V. 1 , Bykova n. i. 2 , adamchik a. a. 2 , Petrosyan g. g. 1 , gatilо Yu. Yu. 1 , Koshel i. V. 1