Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector1336710.17816/KMJ13367Miscellaneous«Maxillofacial surgery and dentistry of the 21st century», I Eurasian congress, Kazan1306201910035425441106201911062019Copyright © 2019, Ksembayev S., Saleyev R., Torgashova O., Mubarakova L., Salakhov A., Grishin P., Nesterova E., Ivanov O., Valiyeva I.2019