Dudik, O. P. “Remote Results Treatment of Patients With Chronic Fibrous Apical Periodontit Is With Usage for Root Canals Obturation New Material "Synthetbone"”. Biomedical and Biosocial Anthropology, no. 24, Mar. 2017, pp. 97-101, https://bba-journal.com/index.php/journal/article/view/25.